Research


CURRENT PROJECTS

  • Telco Network Analytics and IT-Wireless Convergence
  • Mobile context sensing and characterization


RECENT PAST PROJECTS

  • Wireless Resource Virtualization in a Cellular Network. For details, click here.
  • Enhanced Video Delivery in Cellular Networks. For details, click here.


PUBLICATIONS


Broadband Wireless Networks
  • Asynchronous Content Delivery and Pricing in Cellular Networks. Vijay Gabale, Uma Devi, Ravi Kokku, Shiv Kalyanaraman. Book Chapter, To appear in Smart Data Pricing Book, 2014, J. Wiley and Sons.
  • Async: Decongestion and yield management in cellular data networks. Vijay Gabale, Uma Devi, Ravi Kokku, Vinay Kolar, Mukundan Madhavan, Shiv Kalyanaraman, in 21st IEEE ICNP 2013. PDF
  • CellSlice: Cellular Wireless Resource Slicing for Active RAN Sharing. Ravi Kokku, Rajesh mahindra, Honghai Zhang, Sampath Rangarajan, in 5th COMSNETS, Bengaluru, 2013. PDF
  • NVS: A Substrate for Virtualizing Wireless Resources in Cellular Networks. Ravi Kokku, Rajesh mahindra, Honghai Zhang, Sampath Rangarajan, in IEEE/ACM Trans. on Networking (ToN), 2012 PDF
    • NVS Technology Transfer to Product, RAN Sharing whitepaper: http://www.nec.com/en/global/solutions/nsp/lte_sc/doc/wp2013-3.pdf
  • Opportunistic Alignment of Advertisement Delivery with Cellular Basestation Overloads. Ravi Kokku, Rajesh Mahindra, Sampath Rangarajan, and Honghai Zhang. In ACM MobiSys 2011. Best Demo Award. PDF
  • NVS: A Virtualization Substrate for WiMAX Networks.  Ravi Kokku, Rajesh Mahindra, Honghai Zhang, and Sampath Rangarajan. In the 16th International Conference on Mobile Computing and Networking (ACM MobiCom), Chicago, IL, USA. Sep 2010. PDF DEMO (at MobiCom)
  • Farsighted Flow Management for Video Delivery in Broadband Wireless Networks. Rajesh Mahindra, Ravi Kokku, Honghai Zhang and Sampath Rangarajan. In the 3rd International Conference on Communication Systems and Networks (COMSNETS), Bengaluru, India. Jan 2011
  • Accountable Resource Allocation in Broadband Wireless Networks.  Ravi Kokku, Rajesh Mahindra, and Sampath Rangarajan. In the 5th Workshop on Mobility in the evolving Internet Architecture (ACM MobiArch, held in Conjunction with ACM MobiCom), Chicago, IL, USA. Sep 2010. PDF
  • Exploiting Channel Fading and SVC in Wireless Video Streaming. Honghai Zhang, M. Khojastepour, Ravi Kokku, Rajesh Mahindra, Sampath Rangarajan. In IEEE ComSoc Multimedia Communications Technical Committee e-letter, May 2010. (Invited paper).
  • Enabling Location-Specific Real-time Mobile Applications. Ravi Kokku, Karthik Sundaresan and Geoff Jiang. In Third ACM MobiArch, Seattle, WA, August 2008. PDF, SLIDES.


Power and rate control, and beamforming in WLAN/WPAN networks

  • On the potential of Fixed-beam 60 GHz network Interfaces in Mobile Devices. Kishore Ramachandran, Ravi Kokku, Rajesh Mahindra, Kenichi Maruhashi. In the Passive and Active Measurement Conference (PAM), Atlanta, 2011.
  • Symphony: Synchronous Two-phase Rate and Power Control in Wireless LANs. Kishore Ramachandran, Ravi Kokku, Honghai Zhang and Marco Gruteser. In the IEEE/ACM Transactions on Networking (ToN) Journal, 2010.
  • R2D2: Regulating Beam-shape and Rate as Directionality Meets Diversity. Kishore Ramachandran, Ravi Kokku, Karthik Sundaresan, Marco Gruteser, and Sampath Rangarajan. In the Seventh International Conference on Mobile Systems, Applications, and Services (ACM MobiSys), Krakow, Poland, June 2009.
  • Towards Adaptive Beamforming in Indoor Wireless Networks: An Experimental Approach.  Sriram Lakshmanan, Karthik Sundaresan, Ravi Kokku, Amir Khojastepour and Sampath Rangarajan. In INFOCOM minisymposium, Brazil, April 2009.
  • On the Effectiveness of Switched-beam Antennas in Indoor Environments. Marc Blanco, Ravi Kokku, Kishore Ramachandran, Sampath Rangarajan and Karthik Sundaresan. In the Passive and Active Measurement Conference (PAM), Ohio, April 2008. PDF.
  • Synchronous Two-phase Rate and Power Control in Wireless LANs. Kishore Ramachandran, Ravi Kokku, Honghai Zhang and Marco Gruteser. In the Sixth International Conference on Mobile Systems, Applications, and Services (ACM MobiSys), Colorado, June 2008. PDF.


Wide Area Data Replication

  • InSite: QoE-Aware Video Delivery for Cloud Datacenters. Vijay Gabale, Partha Dutta, Ravi Kokku, Shiv Kalyanaraman. In IWQoS 2012.
  • Routelet Placement for Multipath Transport  Mihaela Enachescu, Ravi Kokku. In the 5th International Conference on Broadband Communications, Networks and Systems (BROADNETS), September 2008, London, UK.  PDF. Best Paper Award.
  • Safe Speculative Replication Mike Dahlin, Arun Iyengar, Ravi Kokku, Amol Nayate, Arun Venkataramani, Praveen Yalagandula. Technical report unifying principles from several papers below, 2007.
  • The potential costs and benefits of long-term prefetching Arun Venkataramani, Praveen Yalagandula, Ravi Kokku, Sadia Sharif and Mike Dahlin. In the Computer Communications journal, 25 (4) (2002) pp. 367-375. Also appeared in the 6th International Workshop on Web Caching and Content Distribution (WCW 2001) , June 2001,Boston, USA. Selected as an Award Paper and forwarded to the Computer Communications journal. Detailed Report. Slides.

Multi-service Virtualized Routers
  • Run-time System for Scalable Network Services Upendra Shevade, Ravi Kokku, Harrick Vin. In the 27th IEEE Conference on Computer Communications (INFOCOM), April 2008, Phoenix, Arizona. 

Other Research


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