Ashwin Gumaste, Ph. D

Research Interests:

High-speed Optical Networks: CDC-ROADMs, metro and access optical networks. Wavelength services, novel metro architectures. Flexible grid ROADMs - algorithms, architecture, control and monitoring.

Carrier Ethernet:  Network architecture and protocol design. 100 Gigabit Ethernet MAC, Carrier Ethernet Switch Router, Packet-Optical Integration.

Data-Center and SDNs: Data-center design, protocol, analysis, cloud networks, very large non-blocking switches, control plane using SDN concepts.

Access Networks: GEPON, NG-PON, alternate PON models, traffic engineering in the access area.

Consulting activities: I have engaged vendors, providers, carriers and network integrators in the past. I also have served as subject matter expert, expert witness and portfolio evaluator for telco and broadband networks.

Major Research Contribution: The largest technology transfer between industry and academia in India. 

Awards:

-- Dept. of Atomic Energy: Outstanding Research Investigator Award (youngest to win this award) 2010

-- Dept of Space: Vikram Sarabhai Research Award, 2012.

-- Ministry of Comm and IT's: Telecom Center of Excellence Award, 2011.

-- Indian National Academy of Engineers, INAE Young Engineer Award 2010

-- IBM Faculty Award.

-- PK Patwardhan Technology development award.

-- Institute Chair, JR Isaac Chair at IIT Bombay (the only chair at Associate and Assistant level at IIT Bombay)

-- IIT Bombay Young Investigator award 2010

-- Chair, Technical Committee on High Speed Networks, IEEE Communications Society.

 

                                                                                                                                                                                                   

 

 

 

Above: Products developed by Ashwin Gumaste and his group while at IIT Bombay  licensed to  ECIL.

Technical Publications:

Ph. D Thesis: Light-trail and Light-frame Architectures for Optical Networks, Fall 2003 UT-Dallas. Contribution: proposed the dual frameworks of light-trails and light-frames. Advisor Imrich Chlamtac (Fellow IEEE, ACM)

Books:

  1. DWDM Network Designs and Engineering Solutions, by Ashwin Gumaste and Tony Antony Cisco Press. Dec 18 2002 Was ranked in Top 300 Network Book Seller. Referred widely by both industry and academia, reviewed by Optical Networks Magazine October 2003

  2. First Mile Access Networks and Enabling Technologies, by Ashwin Gumaste and Tony Antony McMillan publishers Feb 2004  (reviewed by IEEE Communications Magazine, Sept 2004 pg 13-14)

  3. Broadband Services: Business case and Technology for Community Networks, by (Ed) Imrich Chlamtac, Ashwin Gumaste and Csaba Szabo – (Feb. 2005) Publisher John Wiley and Sons

Journal papers:

  

  1. A. Gumaste and S. Akhtar, "Evolution of Packet Optical Integration in Backbone and Metropolitan HighSpeed Networks - A Standards Perspective," in IEEE Communications Magazine, November, 2013, Vol. 51, No. 11, pages: 105-111.

  2. D. Bhamare, A. Gumaste, N. Dayama and M. Krishnamoorthy, "Optimal and Heuristic Techniques for the Backbone VLAN Identifier (BVID) Allocation in 802.1Qay Provider Backbone Bridged – Traffic Engineered Networks," to appear, IEEE Transactions on Network and Service Management 2013.

  3. X. Chen, A. Jukan and A. Gumaste, "Optimized Parallel Transmission in Elastic Optical Networks to Support High-Speed Ethernet" to appear, IEEE/OSA Journal of Lightwave Technology, 2013.

  4. 3. Ashwin Gumaste, T. Das, R. Vaishampayan, J. Wang and A. Somani, “Extending Light-trails to Regional Networks: Multi-Hop Light-trails (MLT) – System Design and Performance,” IEEE/OSA Journal of Optical Communications and Networking (JOCN), December 2012, Volume: 4, Issue: 12, Page(s): 1046-1061

  5. Ashwin Gumaste, Klaus Pulverer, Antonio Teixeira, Jun Shan Wey, Ali Nouroozifar, Curt Badstieber and Helmut Schink, "Medium Access Control for the Next Generation Passive Optical Networks (NGPONs) – The OLIMAC Approach" IEEE Network Magazine, April 2012, Volume: 26, Issue: 2, Page(s): 49-56.

  6. A. Gumaste, P. Gokhale, T. Das, P. Agrawal and M. Purohit, "Using Global Content Balancing to Solve the Broadband Penetration Problem in the Developing World: Case Study – India" IEEE Communications Magazine, May 2012. Also cited in Comsoc Technology News (CTN) as one of the best papers from all IEEE ComSoc Journals and Conferences, Volume: 50, Issue: 5, Page(s): 74-81

  7. A. Gumaste, T. Das, A. Mathew, and A. Somani, "An Autonomic Virtual Topology Design and Two-Stage Scheduling Algorithm for Light-trail WDM Networks", IEEE/OSA Journal of Optical Communications and Networking (JOCN), 2011, Volume: 3, Issue: 4, Page(s): 372-389.

  8. T. Das, A. Gumaste, A. Mathew, A. Lodha and N. Ghani, "Generalized Framework and Analysis for Bandwidth Scheduling in GPONs and NGPONs – The K-out-of-N Approach,"  IEEE/OSA Journal of Lightwave Technology, October 2011, Volume: 29, Issue: 19, Page(s): 2875-2892

  9. A. Gumaste, et al, "Omnipresent Ethernet: Design Choices and Technology Drivers for Future Internet, " IEEE Journal of Lightwave Technology, JLT, 2010 April 2010, Volume: 28, Issue: 8, Page(s): 1261-1277

  10. A. Gumaste, et al, "Demonstration of Omnipresent Ethernet: A Novel Metro End-to-End Communication System using Binary+Source Routing and Carrier Ethernet," IEEE Journal of Lightwave Technology, March 2010, Volume: 28, Issue: 4 Page(s): 596-607

  11. A. Gumaste and N. Krishnaswamy, "Proliferation of ITU 709 - Optical Transport Network (OTN) – A Use Case Based Study,"  IEEE Communications Magazine, September 2010, Volume: 48, Issue: 9, Page(s): 54-61.

  12. S. Zheng and A. Gumaste, "A Parallel Self-routing Re-arrangeable Non-blocking Multi-log_2 N Photonic Switching Network,"  IEEE/ACM Transactions on Networking, April 2010, Volume: 18, Issue: 2, Page(s): 529-539. 

  13. Y. Li, J. Wang, A. Gumaste, Y. Xu and Y. Xu, "Integrated Fiber-Wireless Access Networks Supporting Heterogeneous Wireless Clients,"  IIEEE Journal of Lightwave Technology, 2010, Vol. 28, No. 5, pp. 714-724, 2010.

  14. A. Gumaste, A. Dhar and P. Gokhale, "On the State and Guiding Principles of Broadband in India,"  IEEE Communications Magazine, August 2009.

  15. M. Esmaeili, F. Xu, M. Peng, N. Ghani, A. Gumaste, J. Finochietto, “Enhanced Crank-back Signaling for Multi-Domain IP/MPLS Networks,” to appear in Computer Communications, 2010.

  16. Jing Chen, Jianping Wang, Ashwin Gumaste, and S.Q. Zheng, "Fully Distributed Work-Conserving MAC Protocols for Opportunistic Optical Hyperchannels",  IEEE Transactions on Communications, 2009, Volume: 57, Issue: 12 Page(s): 3691-3702.

  17. Guest Editorial, C. Saradhi, A. Gumaste, I. Tomkos and D. Kipler, Protocols and Algorithms for Future Cross­Layer and Hybrid Optical Networks, IEEE Network Magazine May 2009.

  18. A. Gumaste, A Lodha, S. Mehta, J. Wang and N. Ghani, "Light-trains: An Integrated Optical-Wireless Solution for High Bandwidth Applications in High-Speed Metro-Trains," Infocommunications Journal 2011.

  19. P. Rost, R. Boutaba, K. Doppler and A. Gumaste, "Recent Advances in Network Convergence" Special issue, Computer Communication, April 2011.

  20. S. Zheng, A. Gumaste and E. Lu, "Algorithm Hardware CoDesign of a Fast Parallel Routing Architecture for Clos Networks" Journal of Information Networks 2010.

  21. A. Gumaste and T. Antony, "Data Center Networking and Cloud Computing - A Networking Overview"  Embedded Technology Brief 2009.

  22. A. Gumaste, N. Ghani P. Bafna, A. Lodha, A. Agrawal T. Das and S. Zheng, "DynaSPOT: Dynamic Services Provisioned Optical Transport Test-bed - Achieving Multi-Rate Multi-Service Dynamic Provisioning using Strongly connected Light-trail (SLiT) Technology," in IEEE Journal of Lightwave Technology, Jan 2008. 

  23. Editorial: Nasir Ghani, Ashwin Gumaste, Mohan Gurusamy, Biswanath Mukherjee, Suresh Subramaniam: Selected papers from First International Symposium on Advanced Networks and Telecommunication Systems (ANTS 2007). Optical Switching and Networking 6(1): 1-2, 2009

  24. A. Gumaste, D. Diwakar, A. Agrawal, A Lodha and N. Ghani, "Light-Mesh - A Pragmatic Optical Access Network Architecture for IP-Centric Service Oriented Communication" Invited paper, Elseiver Optical Switching and Networking Journal (OSN) 2008, April 2008.

  25. N. Ghani, Q. Liu, A. Gumaste and Nagi Rao, "Control Plane Design in Multi-domain/Multi-granularity Optical Networks," IEEE Communications Magazine, 2008, July 2008. 

  26. N. Ghani, Q. Liu, A. Gumaste, J. Lankford, A. Shami, C. Assi, A. Khalil, D. Benhaddou, "Value-Added Services in Next-Generation SONET/SDH Networks," in IEEE Communications Magazine, Dec. 2008.

  27. Q. Liu, N. Ghani, A. Gumaste, "Routing Scalability in Multi-Domain DWDM Networks, Photonic Network Communications (PNET) 2008.

  28. N. Ghani, Q. Liu, M. Kok and A. Gumaste, "Hierarchical Routing and Lightpath Provisioning in Distributed Multi-Domain Optical Networks," conditional acceptance in IEEE Journal on Selected Areas in Communication (JSAC) 2008

  29. Guest Editorial: V. Sharma, T. Nadeau and A. Gumaste, "Next Generation Carrier Ethernet," IEEE Communications Magazine, March 2008.

  30.  V. Sharma and A. Gumaste, “Designing Converged Optical Ethernet Networks,” Photonic Technology Briefs Magazine, Feb. 2008.

  31. P. Bafna, A. Gumaste and N. Ghani, "Delay Sensitive Smoothed Round Robin (DS2R2) Scheduler for High Speed Optical Networks," IEEE Communication Letters Vol. 11. No 7 July 2007.

  32. J. Wu Q. Zheng, A. Gumaste and C. Xiao, "Error Performance of Double Space time Transmit Diversity System," IEEE Transactions on Wireless Communications Vol. 6 No 9 Sept 2007

  33. Q. Liu, N. Ghani, Nagi Rao and A. Gumaste, "Distributed Inter-Domain Lightpath Provisioning in the Presence of Wavelength  Conversion" in Elsevier's Computer Communications Journal July 2007

  34. A. Gumaste and S. Q Zheng, “ Light-frames - Pragmatic Framework for Optical Packet Transport: Extending Ethernet LANs to Optical Networks,” IEEE/OSA Journal on Lightwave technology October 2006.

  35. A. Gumaste and S. Q. Zheng, “Optical Storage Area Networks: The Light-trails Approach,” in IEEE Communications Magazine March 2005 pp 72-78 Vol. 21. No. 3.

  36. A. Gumaste and P. Palacharla, “Heuristic and Optimal Assignment Techniques for Light-trail Ring WDM Networks,” in Elsevier's Computer Communications Journal (CCJ) October 2006.

  37. S. Q. Zheng and A. Gumaste, "Scalable and Practical Nonblocking Switching Networks,"  Journal of Computer Science and Technology July 2006.

  38. Q. Liu, M. A. Kök, N. Ghani, A. Gumaste, "Hierarchical Routing in Multi-Domain Optical Networks," in Computer Communications October 2006

  39. Q. Liu, M. A. Kök, N. Ghani, A. Gumaste, “Hierarchical Inter-Domain Routing and Lightpath Provisioning in Optical Networks, in OSA Journal of Optical Networking, May 2007

  40. A. Gumaste and I. Chlamtac, “Light-trails: An Optical Solution for IP Transport” Invited paper Optical Society of America, (OSA) Journal of Optical Networking (JON) May  2004. pp 261- 281

  41. A. Gumaste, “TIONets Triangular interconnection of optical networks IEEE Communication Letters, Vol 6 No 2 Pg 83-85 Feb 2002

  42. A. Gumaste N. Pissinou and K. Makki “PIONets: Polyhedral Interconnection of Optical Networks”  Journal of Computer Science and Information Management, Special Issue July 2000 Vol 1. No 4.

  43. under major revision: A. Gumaste, J. Chandarana, N. Ghani and V. Sharma, “Service Aware Control Mechanisms for Light-trail WDM Networks,” under major revision IEEE journal.

 

Conference Papers:

  1. S. Bidkar, D. Bhamare and A. Gumaste, “Is Carrier Ethernet = Software Defined Networks?” Invited paper, IWONs, Atlanta, Dec 2013.

  2. A. Gumaste and S. Bidkar, “On the Scalability of the FISSION: Flexible Interconnection of Scalable Systems using Integrated Optical Networks Framework,” Invited paper, Asia Communications and Photonics Conference, Beijing, China, November 2013. 

  3. A. Gumaste, B. K. M. Bheri, “FISSION: Flexible Interconnection of Scalable Systems Integrated using Optical Networks for Data Centers” IEEE International Conference on Communications (ICC) 2013, Budapest, Hungary June 2013.

  4. A. Gumaste, “Architectural Considerations in the FISSION: Flexible Interconnection of Scalable Systems using Integrated Optical Network Data-centers” Invited paper, Optical Network Design and Modeling conference (ONDM), Brest, France, April 2013

  5. D. Bhamare, A. Gumaste and P. Srivasatava, “Multi-Layer Optimization for Service Provider Transport Networks,” IEEE Local Computer Networks (LCN) conference, Sydney, 2013.

  6. X. Chen, A. Jukan and A. Gumaste, “Multipath De-fragmentation: Achieving Better Spectral Efficiency in Elastic Optical Path Networks,” Proceedings of IEEE Infocom, April 2013, Turin Italy.

  7. S. Bidkar, S. Mehta, D. Bhamare, N. Bajaj and A. Gumaste, “Circuit Performance in a Packet Network: Demonstrating Integrated Carrier Ethernet Switch Router (CESR) + Optical Transport Network (OTN)” IEEE International Conference on Computing, Networking and Communications, ICNC San Diego January, 2013.

  8. S. Mehta, A. Upadhyay, S. Bidkar and A. Gumaste, "Design of a Shared Memory Carrier Ethernet Switch Compliant to Provider Backbone Bridging-Traffic Engineering (IEEE802.1Qay)" IEEE HPSR High-Performance Switching and Routing, 2012, June 24-27, Serbia.

  9. A. Shankar, D. Bhamare, A. Gumaste and M. Krishnamoorthy, “Optimizing Transport Technology Choices for Virtual Machines (VMs) in Data-Center and Cloud Environments,” National Conference on Communications, 2013, Kanpur, India.

  10. A. Gumaste, S. Mehta and T. Das, “Connectivity and Fault Management Optimization in Carrier Ethernet based High-Speed Networks” in Photonics in Switching, Monterey CA, Jan 2012.

  11. V. Negi, U. Kumar, T. Pandey and A. Gumaste, “Building an MPLS-TP Simulator” in Networks and Optical Communications (NOC), Valencia, Spain June 2012.

  12. X. Chen, A. Jukan and A. Gumaste, “On the Usage of FDLs in Optical Parallel Transmission to Support High Speed Ethernet,” Optical Network Design and Modeling, ONDM 2012, Essex, UK, April 2012.

  13. Pascale Vicat-Blanc, Sergi Figuerola, Xiaomin Chen, Giada Landi, Eduard Escalona, Chris Develder, Anna Tzanakaki, Yuri Demchenko, Joan Antoni García Espín, Jordi Ferrer Riera, Ester López, Sebastien Soudan, Jens Buysse, Admela Jukan, Nicola Ciulli, Marc Brogle, Luuk van Laarhoven, Bartosz Belter, Fabienne Anhalt, Reza Nejabati, Dimitra Simeonidou, Canh Ngo, Cees de Laat, Matteo Biancani, Michael Roth, Pasquale Donadio, Javier Jiménez, Monika Antoniak-Lewandowska, Ashwin Gumaste: Bringing Optical Networks to the Cloud: An Architecture for a Sustainable future Internet. Future Internet Assembly at the European Comission,2011: 307-322

  14. S. Bidkar, C. Vaishampayan, S. Mehta, D. Bhamare and A. Gumaste, "Demonstrating OpenFlow over a Carrier Ethernet Switch Router (CESR) – A Services Perspective", Invited paper, Networking and Optical Communications (NOC), Valencia Spain, June 2012.

  15. A. Gumaste, "'Reach Optimized Architecture for Multi-rate Transport System (ROAMTS) - The Case for Non-ITU.T Compliant Optics", IEEE International Conference on Communications (ICC), Kyoto, Japan, 2011.

  16. D. Bhamare, A. Upadhyay, A. Kshirasagar, S. Mehta and A. Gumaste, "'The BVID Allocation Problem in 802.1Qay Provider Backbone Bridged Traffic Engineered Networks" IEEE International Conference on Communications (ICC), Kyoto, Japan, 2011.

  17. A. Gumaste, "Towards A 1-Microsecond Switch Router" Invited Paper, International Conference on Transparent Optical Networks, ICTON 2011, Stockholm, Sweden, June 2010.

  18. A. Gumaste; K. Pulverer A. Texiera, S. Wey, A. Nouroozifar, "OLARP: Open Lambda Assignment and Routing Problem – Bandwidth Multiplier for Metro and Access Networks," to appear, 27th IEEE/OSA Optical Fiber Communication Conference (OFC) 2011, Los Angeles, USA, March 2011 (ranked as one of the top 3 papers).

  19. C. Taunk, S. Bidkar, C. Saradhi and A. Gumaste, "Impairment Aware RWA based on a K-Shuffle Edge-Disjoint Path Solution (IA-KS-EDP)," 27th IEEE/OSA Optical Fiber Communication Conference (OFC) 2011, Los Angeles, USA, March 2011.

  20. A. Somani and A. Gumaste, "Distributed Traffic Grooming - The Light-trails Approach," Invited paper, 27th IEEE/OSA Optical Fiber Communication Conference (OFC) 2011, Los Angeles, USA, March 2011.

  21. N. Ghani, F. Xu, M. Peng, A. Rayes and A. Gumaste, "Multi-Failure Post-Fault Restoration in Multidomain DWDM Networks", 27th IEEE/OSA Optical Fiber Communication Conference (OFC) 2011, Los Angeles, USA, March 2011.

  22. P. Gokhale, R. Kumar, T. Das and A. Gumaste, "Cloud Computing over Metropolitan Area WDM Networks: The Light-trails Approach", 53rd IEEE Globecom 2010, Miami, December 2010.

  23. A. Verma, S. Mehta, A. Gumaste, "Alternate Carrier Ethernet Technology - The Omnipresent Ethernet Demonstration," 4th IEEE Advanced Networks and Telecommunication Systems (ANTS) 2010, Mumbai, India.  

  24. A. Gumaste, S. Bidkar, C. Taunk and D. Bhamare, "Using MPLS-TP for Data-Center Interconnection" Invited paper, Broadnets 2010, Athens Greece Oct 2010

  25. J. Wey, C. Babstieber, A. Gumaste, A. Noorozifar, A. Tiexiera, K. Pulverer and H. Rohde, "Virtualized Passive Optical Metro and Access Networks" ITU-T Kalidoscope Beyond the Internet - Innovations for future networks and services Pune, India, 2010.

  26. A. Gumaste, S. Mehta, S. Rana and T. Das "OBiS: Optical Bit Switching – A Switch Architecture for Optical Omnipresent Ethernet " 26th IEEE/OSA Optic Fiber Conference (OFC), March 2010, San Diego.

  27. P. Gokhale, T. Das and A. Gumaste, "Cloud Computing over Light-trail WDM Core Networks ", 26th IEEE/OSA Optic Fiber Conference (OFC), March 2010, San Diego (nominated for Corning Best Paper award).

  28. U. Manyam, J. Parab, A. Gumaste, "Experimental Demonstration for the Need for Carrier Ethernet in Mission Critical Networks",  26th IEEE/OSA Optic Fiber Conference (OFC), March 2010, San Diego.

  29. A. Gumaste, "Maximizing Network Capacity using the Reach Optimized Architecture for Multi-rate Transport System (ROAMTS)," Photonics in Switching, Monterey CA, USA, July 2010

  30. A. Gumaste, "Deciphering Omnipresent Ethernet: An All Ethernet Communication System – The Control Plane," Invited paper, International Conference on Transparent Optical Networks ICTON 2010.

  31. A. Gumaste, "Achieving Nanosecond Switching Time for Intra-Data-Center Connectivity - The Omnipresent Ethernet Approach", in the 6th International Conference on IP + Optical Networks IPOP 2010, NTT center Japan.

  32. A. Gumaste, M. Chamania and A. Jukan, "An End-to-End Addressing and Routing Scheme in all-Ethernet Wide-Area Networks" 44th IEEE International Conference on Communications (ICC), Dresden Germany, 2009.

  33. A. Gumaste and A. Somani, "Scheduling Algorithms in LiTPiC – Digital Optical Networks using Light-trails and Photonic Integrated Circuits," 52nd IEEE Globecom, Honolulu, Dec. 2009.

  34. A. Gumaste, M. Tatipamula and A. Guetari, "Cloud Computing using Advanced Optical and Ethernet Technologies," Invited Paper, Gridnets 2009, Athens, Greece.

  35. A. Gumaste, S. Jain and A. Somani, "A Superscheduler Architecture for Computational Grids using Light-trail WDM networks," Invited Paper, Proceedings of the 6th, Broadnets Conference, Madrid, Spain, 2009.

  36. Q. Liu, T. Frangieh, F. Xu, C. Xie, N. Ghani, A. Gumaste, T. Lehman, Chin Guok, "Distributed Grooming in Multi-Domain IP/MPLS-DWDM Networks," 52nd IEEE Globecom Honolulu, Dec 2009

  37. S. Mehta, R. Vaishampayan and Ashwin Gumaste, "Omnipresent Ethernet: A Novel Metro Communication System using Binary + Source Routing and Carrier Ethernet," POST DEADLINE PAPER, 25th IEEE OSA Optic Fiber Communications (OFC) conference, 2009, San Diego, USA, March 2009.  

  38. R. Vaishampayan, A. Gumaste, S. Rana and N. Ghani, "Application Driven Comparison of T-MPLS/MPLS-TP and PBB-TE – Driver Choices for Carrier Ethernet," IEEE Infocom Workshop on High-Speed Networks, Rio di Janerio, 2009.

  39. A. Gumaste, J. Wang, A. Karandikar and N. Ghani, "Multihop Light-trail Networks," 44th IEEE International Conference on Communications (ICC), Dresden Germany, 2009.

  40. C. Xie, N. Ghani, Q. Liu, W. Shu, A. Gumaste, “Multi-Point Ethernet over Next-Generation SONET/SDH,” to appear 44th IEEE International Conference on Communications (ICC), Dresden Germany, 2009.

  41. N.Ghani, S.Seethamraju, Q.Liu, R. Wang, Y. Qiao, A. Gumaste, "Dynamic Topology Overlays for Multipoint Ethernet-over-SONET/SDH", in ITC 21, Paris, France, September 2009.

  42. A. Gumaste, "Towards a Transponder for Serial 100 Gigabit Ethernet Using a Novel Optical SERDES," 25th, IEEE/OSA Optic Fiber Communications Conference (OFC) 2009, San Diego.

  43. A. Gumaste and N. Ghani, "Reach Optimized Architecture for Multi-Rate Transport System (ROAMTS): One Size Does Not Fit All" 25th, IEEE/OSA Optic Fiber Communications Conference (OFC) 2009, San Diego.

  44. A. Gumaste, T. Das, R. Vaishampayan and N. Ghani, "Light-Mesh: An Evolutionary Approach to Optical Packet Transport in Access Networks," 25th, IEEE/OSA Optic Fiber Communications Conference (OFC) 2009, San Diego.

  45. C. Xie, N. Ghani, Q. Liu, W. Shu, A. Shami, A. Gumaste, Y. Qiao and Q. Yu, "Multi-point-to-Multi-Point Ethernet over SONET/SDH," 25th, IEEE/OSA Optic Fiber Communications Conference (OFC) 2009, San Diego.

  46. A. Gumaste, "Omnipresent Ethernet - A Solution to Scalable, Service Oriented Future Internet Design," Invited Paper, 13th Optical Network Design and Modeling Conference (ONDM), Braunchwieg, Germany, 2009.

  47. A. Gumaste, N. Ghani and V. W. S. Chan, "CAMPUS: A Metro Framework to Guaranteed Optical Service Provisioning," Invited paper, Broadnets 2008, London, September 2008.

  48. A. Gumaste, "Carrier Ethernet driven Network Architecture for Enterprise Optical Networks," Invited Paper, 8th SPIE Asia Pacific Optical Communications Conference, APOC 2008 Hangzhou, China, October 2008.

  49. A. Lodha, A. Gumaste, J. Wang and N. Ghani, "CAVALIER: A Data Center Metro Networking Architecture," Invited paper, 3rd Workshop on Guaranteed Optical Service Provisioning, GOSP, London, September 2008.

  50. Y. Li, J. Wang, A. Gumaste and Y. Xu, "Multicast Routing in Light-trail WDM Networks," 51st. IEEE Global Comm. Conference Globecom 2008, New Orleans.

  51. G. Liu, C. Xie, T. Frangieh, N. Ghani, A. Gumaste, N .S. V. Rao, T. Lehman, "Inter-Domain Routing Scalability in Optical DWDM Networks," Best paper candidate, IEEE International Conference on Computer Communication Networks, ICCCN, 2008,US Virgin Islands.

  52. J. Chen, J. Wang, H. Yu, A. Gumaste, S. Zheng, “1-persistent Collision-Free CSMA Protocols for Opportunistic Optical Hyperchannels”, Best Paper, The 8th International Conference on Algorithms and Architectures for Parallel Processing, 2008.

  53. A. Gumaste, A. Jukan, A. Lodha, C. Xue and N. Ghani, “A Novel Node Architecture for Light-trail Provisioning in Mesh WDM Metro Networks,” in IEEE./OSA 24th Optic Fiber Communications (OFC) conference 2008.

  54. A. Agrawal, A. Gumaste, M. Chamania, N. Ghani, “Topology Abstraction Algorithms for Light-Mesh: An Alternate Model for PONs” in IEEE./OSA 24th Optic Fiber Communications (OFC) conference 2008.

  55. A. Gumaste and N. Ghani, “LiTPiC – Light-trails and Photonic Integrated Circuits: Issues of Network Design and Performance”, 32nd IEEE Conference on Local Computer Networks (LCN 2007), Dublin, Ireland, October 2007.

  56. A. Gumaste, R. Singhai and A. Sahoo, "Intelligent Vehicular Transportation System (InVeTraS)," in IEEE ATNAC, Australasian Telecommunication Networks and Applications Conference, Christchurch New Zealand Dec 2007.

  57. A. Gumaste, N. Dhanuka, A. Lodha and N. Ghani, "Long Reach Optical Access Networks using Light-trails,"  IEEE Globecom 2007, Washington DC. Dec. 2007. 

  58. A. Gumaste, A. Lodha, J. Wang and S. Zheng, "Generalized ROADM/Light-trail Assisted Hand-Off for Wireless Metro Networks" to appear in the 7th The 10th International Symposium on Wireless Personal Multimedia Communications (WPMC), Jaipur, India, Dec. 2007.

  59. A. Gumaste, N. Ghani, P. Bafna, A. Lodha, S. Srivastava, T. Das and S. Zheng, "Achieving Multi-Rate Dynamic Sub-Wavelength Service Provisioning in Strongly connected Light-trails (SLiTs)," POST DEADLINE PAPER IEEE/OSA OFC Optic Fiber Conference, Anaheim, CA March 2007.

  60. A. Gumaste, J. Chandarana, P. Bafna, N. Ghani and V. Sharma, "On Control Plane for Service Provisioning in Light-trail WDM Optical Networks," in the 42nd IEEE Intl Conf on Commun. (ICC) Glasgow UK 2007.

  61. A. Lodha, A. Gumaste, P. Bafna and N. Ghani, "Stochastic Optimization of Light-trail Optical WDM Ring Networks using Bender's Decomposition," in the 11th IEEE High Speed Routing and Switching (HPSR) conference, NY, June 2007.

  62. K. Lu, T. Zhang, S. Zheng and A. Gumaste, "A Design Principle for Future High-speed Networks," High Speed Networks Workshop as part of Infocom 2007, Ankorage Alaska May 2007.

  63. A. Gumaste, R. Singhai and A. Sahoo, "Intellicarts: Intelligent Car Transportation System," in the 15th IEEE Local Area Networks and Metro Area Networks (LANMAN) 2007, Princeton NJ.

  64. A. Gumaste, "Electrigence: Electrical distribution networks with added Intelligence for Home/Office Automation and Control", IEEE International Symposium on Power Line Communications (ISPLC) 2007 Pisa Italy.

  65. P. Bafna, A. Gumaste and N. Ghani, "Delay Sensitive Smoothed Round Robin (DS2R2) Scheduler for Light-trail and SLiT Networks," in 24th OSA/IEEE Optical Fiber Communications Conference, OFC 2007, Anaheim CA USA.

  66. A. Gumaste and N. Ghani, "TEDION: Terabit Digital Optical Networks Based on Light-trails and Photonic Integrated Circuits for Low Cost and Dynamic Communication," 3rd IEEE International Symposium on High Capacity Optical Networks and Enabling Technologies (HONET 2006), Charlotte, NC, USA from September 6-8, 2006, USA.

  67. K. Natarajan, A. Gudhe, Ashwin Gumaste and N. Ghani, " A Novel K-out-of-N Auction Mechanism and Strategic Scaling for Dynamic Bandwidth Allocation in GE-PON," 49th IEEE Global Communications Globecom 2006 San Francisco, CA, USA.

  68. S. Q. Zheng, A Gumaste and H. Shen, "A Rearrangeable Nonblocking Multi-log_2 N Multicast Switching Network,"  49th IEEE Global Communications Globecom 2006 San Francisco CA.

  69. S. Q. Zheng and A. Gumaste, "SMART: Scalable Multi-Access Reconfigurable Transport: A New Optical Architecture for Future Internet," Invited paper IEEE Broadband Networks, Broadnets General Symposium San Jose CA 2006, USA.

  70. A. Gumaste, P. Palacharla and T. Naito, “Experimental Demonstration for Static and Dynamic Control for Light-trail Networks,” 11th Opto-Electronic Communications Conference OECC 2006, Taiwan.

  71. A. Gumaste, S. Jain and S. Q. Zheng, “SLiT: Strongly connected Light-trail solution for Cost Efficient and Dynamic Optical Networking,”  22nd IEEE/OSA Optical Fiber Communications Conference OFC 2006 Anahiem CA.

  72. A. Gumaste, N. Ghani and S. Q. Zheng, “Light-trains: A Cross Layer Delivery Mechanism for High Bandwidth Applications in Moving Metro Trains,”  41st IEEE Int’l Conf. on Commun. (ICC) 2006 Istanbul Turkey.

  73. P. Palacharla, A. Gumaste, E. Biru and T. Naito, “Implementation of Burstponder Card for Ethernet Grooming in Light-trail WDM Networks,”  41st IEEE Int’l Conf. on Commun. ICC 2006 Istanbul Turkey.

  74. J. Wu, C. Xiao and A. Gumaste, "Error Performance of Double Space Time Transmit Diversity System" 41st IEEE Intl Conf on Commun. ICC 2006 Istanbul Turkey.

  75. A. Gumaste, S. Jain, N. Ghani and S. Q. Zheng, “SLiT (Strongly connected Light-trail) for WDM Ring Networks,” 7th IEEE International Symposium on Computer Networks ISCN 2006 Istanbul Turkey.

  76. G. Chen, S. Zheng and A. Gumaste, "QoS Assuring Access Control Protocols for Hyperchannels in SMART Network," 19th Parallel and Distributed Computing Systems PDCS 2006, Dallas TX

  77. B. Yang, A. Gumaste, E. Lu and S.Q Zheng "Message Scheduling on a Wormhole-Switched Linear Client-Server Network", Proceedings of the 19th International Conference on Parallel and Distributed Computing Systems.

  78. S. Zheng and A. Gumaste, "A Fast Parallel Routing Architecture for Clos Networks," in IEEE/ACM Architectures for Networking and Communications Systems ANCS, Washington, 2006.

  79. A. Gumaste and S. Q. Zheng, “Dual Auction and Recourse Technique for Light-trail Assignment,” 3rd IEEE WOCN Wireless and Optical Communication Networks Conference. 

  80. S. Q. Zheng and A. Gumaste  "Virtual Nonblocking Switching Networks," Proceedings of the 17th International Conference on Parallel and Distributed Computing and Systems (PDCS 2005), pp. 742-748, 2005.

  81. A. Gumaste, P. Palacharla and T. Naito, “Performance Evaluation and Demonstration of Light-trails in Shared Wavelength Optical Networks (SWON) ", 31st European Conf. On Optical Communication (ECOC) 2005 Glasgow.

  82. A. Gumaste, “Optimal and Heuristic Assignment for Light-trail Assignment,” 13th Symposium on Perf. Evaluation on Computers and Telecommunications (SPECTS), Philadelphia July 2005.

  83. A. Gumaste, P. Palacharla and S. Kinoshita, “Light-trail based Shared Wavelength Optical Network,” 10th Opto-Electronics Communication Conference (OECC) 2005 Korea

  84. A. Gumaste and S. Q. Zheng, “Protection Mechanism in Light-trail Networks”, 9th Optical Network Design and Modeling (ONDM) conference Feb. 2005

  85. A. Gumaste and S. Q. Zheng, “Optical Implementation of Resilient Packet Rings using Light-trails,” 21st Prof. of Optical Fiber Conference/National Fiber Optic Engineers Conf. NFOEC/OFC 2005, CA.

  86. A. Gumaste and D. Bihon, “Dual Layered Wavelength Banded Digital X Connect: Architecture for Low Cost Sub-Lambda Granular Optical Networks” 21st Proc. of  NFOEC/OFC 2005.

  87. A. Gumaste, G. Kuper and I. Chlamtac, “Optimizing Light-trail Assignment to WDM Networks for Dynamic IP Centric Traffic”  13th  IEEE Local area networks and metro area networks, LANMAN Workshop, San Francisco 2004.

  88. C. Tian, A. Gumaste and S. Kinoshita, “Shared Protection with Selective Regeneration in Flexible WDM Networks,” 30th ECOC European Conf on Optical Comm. Stockholm Sweden 2004.

  89. Ashwin Gumaste, Imrich Chlamtac and Jason Jue, ‘Light-frames: Pragmatic Implementation for Optical Packet Transport,’ 39th IEEE International Conference on Communication ICC 2004 Paris France.

  90. A Gumaste and I. Chlamtac, ‘Mesh Implementation of Light-trails,’ IEEE Proceedings of International Conference on Communication (12th)  ICCCN Dallas, October 20. 2003.

  91. A. Gumaste, “Light-trails as a SAN solution: Providing Dynamic Synchronous and Multicasting connections in optical networks,” SPIE, Opticomm, 2003, in Workshop on Optical Networking Solutions for Global SAN, (ONSAN). Dallas TX. Oct 13 2003.

  92. A. Gumaste and I. Chlamtac, ‘Adaptations to a GMPLS framework for IP over Optical Communication: The light-trails Approach,’ National Fiber Optic Engineers Conferences, (NFOEC) Orlando September 8th 2003.

  93. A. Gumaste, and I. Chlamtac, ``Distributed Protection Scheme for WDM Mesh Networks ", Second International Conference on Optical Communications and Networks, (ICOCN 2003), Bangalore, India, October 2003.

  94.  A. Gumaste and I. Chlamtac, "An Efficient Protocol for Communication in a Passive Optical Network,"  38th IEEE Proc of International Conference on Communication (ICC) 2003 Anchorage, Alaska, May 2003.

  95. Ashwin Gumaste and Imrich Chlamtac, "Transmission Upon Reception: An Efficient Protocol for Ethernet over Passive Optical Networks’, 8th Optical Network Design and Management (ONDM) 2003 Budapest Hungary February 2003.

  96. I. Chlamtac and A. Gumaste, ‘Light-trails: A Solution to IP Centric Communication over Optical Networks,’ IEEE 2nd Quality of Service in IP Networks QoS IP,  Milan Italy.  

  97. Ashwin Gumaste and I. Chlamtac, “Light-trails: A Novel Conceptual Framework for Conducting Optical Communications, 3rd IEEE Workshop on High Performance Switching and Routing, Proceedings of HPSR 2003 Torino Italy June 2003 (First paper proposing the light-trail concept)

  98. G. Zeng, I. Chlamtac and A Gumaste, "Computational Aspects of Blocking Probability in Cellular Networks," Wireless Networking Symposium, WNCG 2003 Austin Texas USA

  99. G. Zeng, I. Chlamtac and A. Gumaste, "Analysis of Blocking Probability in Optical Burst Switching," 3rd SPIE Opticomm – Workshop on Optical Burst Switching (WOBS) workshop 2003.

  100.  A. Gumaste and I. Chlamtac, "Protection of Lightpaths using Alternate Routing in WDM Mesh Networks," Proc. Intl Conf on Optical Comm. (ICOCN) Networks, Singapore 2003

  101.  I. Chlamtac and A. Gumaste, ‘Bandwidth Management in Community Networks,’ Key note address International Workshop on Distributed Computing IWDC 2002 Dec 29th 2002 Calcutta, India (Paper published by Springer Verlag)

  102.  A. Gumaste, S. Kinoshita and G. Castanon “Benefits of Optical Subnets” First International Conference on Optical Networks (ICOCN) Singapore Nov 2002.

  103.  A. Gumaste and J. Jue, ‘A Protocol for scheduling bursts and guaranteeing QoS in optical burst switched networks’ First International Conference on Optical Networks (ICOCN) Singapore 2002.

  104.  A. Gumaste, D. Bihon, S. Kinoshita and E. Koopferstock, “A Comparison of WDM Network Topologies” International Conference on Computer Communications, (ICCC) Mumbai August 2002

  105.  A. Gumaste S. Kinoshita, K. Takeguchi and G. Castanon, ‘BITCA: Bifurcated interconnected to channel assignment in metro WDM rings’ Proceedings of Optical Fiber Communications Conference (OFC) Anaheim CA, 2002

  106.  A. Gumaste et al ’Routing in TIONets: Store and Forward versus the Hot Potato Approach’ Symposium on Performance Evaluation in Computers and Telecommunication Systems (SPECTS) 2001.

  107.  K. Makki and A. Gumaste, ’Hybrid Optical over wireless system’ Proceedings of Wireless Communications and Networking Conference (WCNC) 2000, Chicago.

 

        

Patents (pending or approved):

           Granted US Patents (source USPTO):

  1.             7,801,034         :            System and method for bandwidth allocation in an optical light-trail

  2.             7,787,763         :            System and method for protecting optical light-trails

  3.             7,715,711         :            Wavelength selective switch design configurations for mesh light-trails

  4.             7,590,353         :            System and Method for bandwidth allocation in an optical light-trail.

  5.             7,609,966         :            Method and system for time-sharing transmission frequencies in an optical network

  6.             7,515,828         :            System and Method for Implementing Optical light-trails

  7.             7,616,891         :            System and method for transmission and reception of traffic in optical light-trails       

  8.             7,499,465         :            Heuristic assignment of light-trails in an optical network           

  9.             7,603.035         :            Method and system for a data centric architecture in an optical network

  10.             7,483,637         :            Optical ring network with optical subnets and method

  11.             7,477,844         :            Method and system for utilizing virtual local access network addressing in optical networks

  12.             7,466,917         :            Method and system for establishing transmission priority for optical light-trails

  13.             7,457,540         :            System and method for shaping traffic in optical light-trails

  14.             7,450,851         :            System and method for modularly scalable architecture for optical networks

  15.             7,321,729         :            Optical ring network with selective signal regeneration and wavelength conversion

  16.             7,283,740         :            Optical ring network with optical subnets and method

  17.             7,283,739         :            Multiple subnets in an optical ring network and method

  18.             7,200,332         :            System and method for assigning traffic to wavelengths in optical networks

  19.             7,184,663         :            Optical ring network with hub node and method

  20.             7,035,539         :            Interconnecting nodes in an optical communication system

 

    In the News:

 

ECIL routers

http://www.thehindubusinessline.com/industry-and-economy/info-tech/mtnl-to-deploy-telecom-tech-developed-by-iitb-across-city/article4591550.ece?ref=wl_industry-and-economy


http://www.eetindia.co.in/ART_8800683725_1800006_NT_581c3c9d.HTM


http://www.lightreading.in/lightreadingindia/news-wire-feed/156270/mtnl-deploy-routers-developed-iit-bombay


http://www.telecomtiger.com/Technology_fullstory.aspx?storyid=17249&section=S210

 

http://timesofindia.indiatimes.com/business/india-business/ECIL-made-Routers-in-MTNL-network/articleshow/24671087.cms


http://www.thehindubusinessline.com/industry-and-economy/info-tech/ecils-switch-routers-for-mtnl/article5286051.ece


http://www.lightreading.in/print_article/lightreadingindia/news-wire-feed/285905/ecil-deploys-native-routers-network-mtnl?print=true


http://www.ecil.co.in/press_releases/ECIL_MTNL_Mumbai_2013_Press_Release.pdf

Non-investigative activities:

 

Editorships:

Past and upcoming Talks: