Sarit Mukherjee

Bell Laboratories
Networking Software Research Department

101 Crawfords Corner Road
Room 4E-626
Holmdel, NJ 07733, USA
1-732-949-6011
1-732-949-0399 (FAX)
sarit@lucent.com
sarit@bell-labs.com

My interest is in network systems research and prototype development. In the past I have worked extensively on content distribution and delivery networking, digital media servers and streaming, and auto-configuring networks. My current work is focused on research and development of new data services in the third generation wireless networks. Below are some of the major projects that I have worked on recently:

Wireless Edge Router: This project encompasses building a scalable, cost-effective PDSN/GGSN for third Generation Wireless Network with intelligent switching/routing capability. We identified a number of properties that differentiates WER from a traditional wireline edge router. This motivated to purpose build a WER, both the hardware and the software. We have shown that WER enables value-added IP services, for example, mobile wireless VPN at a significantly lower cost and significantly reduces the capital and operational expenses of a carrier. We built a prototype of the WER on a network processor based blade and have shown its superiority.

User Identity based Session Redirector: We identified that in the third network architecture, users' data sessions are directed to the data serving nodes based on the device identity, not the user identity. Since data sessions are associated with a user not a device, it becomes more advantageous to route users' data sessions to the serving nodes based on the users' identity. We designed a novel and unique network element that sits in between the PCF and PDSN and direct user sessions to the most appropriate serving node based on users' identity, PDSNs' capabilities and functionalities. It enables a number of innovative functions without requiring any changes to the current standard. We completed a detailed design and prototype implementation of the element.

Managed Multi-Protocol Streaming Proxy Cache: This project encompasses the design and development of a fully managed streaming proxy cache that enables Internet Service Providers to offer on-demand and live streaming of popular media objects (e.g. Real Media, Windows Media, QuickTime) and broadcasting of popular programs from their edge nodes (Point of Presence). We built a proxy cache on Linux platform that supports multiple streaming protocols. This proxy cache can work stand-alone, as well as is able to use in-band and out-of-band content delivery (from a master cache) over a fully managed private satellite multicast network. We designed satellite-based multicast content injection mechanism to support live and pre-stored media clips. We built a master streaming proxy cache to harvest, stream and distribute popular live and on-demand contents to the distributed global edge network, providing end users with a significantly improved online experience. We designed intelligent locality sensitive content adaptation and filtering mechanism for the edge proxy caches.
 

Selected Recent Journal Publications:

Wireless Edge Router: A Network Processor Based Packet Data Serving Node for CDMA2000 Network. Bell Labs Technical Journal (BLTJ), Volume 10, Number 1. (with A. Kagalkar, J. Lin, S. Gadgil and S. Paul)

An Active Buffer Management Technique for Providing Interactive Functions in Broadcast Video-on-Demand Systems. To appear in IEEE Transactions on Multimedia. (with Z. Fei, M.H. Ammar and I. Kamel)

A Scalable Bandwidth Guaranteed Distributed Continuous Media File System using Network Attached Autonomous Disks. IEEE Transactions on Multimedia, Volume 5, Number 1, March 2003. (with C. Akinlar)

An Efficient Bandwidth Management Scheme for Real-Time Internet Applications. Computer Communication Journal, Volume 25, Issue 17, November 2002. (with F. Wang, P. Mohapatra, and D. Bushmitch)

A Random Early Demotion and Promotion Marker for Assured Services. IEEE Journal on Selected Areas in Communications, Special Issue on Quality of Service (QoS) in the Internet, Volume 18, Number 12, December 2000. (with F. Wang, P. Mohapatra, and D. Bushmitch)

Supporting MPEG Video Transport on DOCSIS-Compliant Cable Networks. IEEE Journal on Selected Areas in Communications, Special Issue on Analysis and Synthesis of MAC Protocols, Volume 18, Number 9, September 2000. (with D. Bushmitch, S. Narayanan, M. Ratty and Q. Shi)
 

Selected Recent Conference Publications:

Always-On: A New Paradigm for Wireless Networks. Invited Paper in Proceedings of the 15th  IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Barcelona, Spain, September 2004. (with S. Paul and K.K. Sabnani)

User Identity Based Session Redirection in CDMA2000 Networks. Proceedings of the First Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services (Mobiquitous 2004), Boston, August 2004. (with  S. Rangarajan, J. Lin and S. Paul)

Optimal Customer Provisioning in Network-Based Mobile VPNs. Proceedings of the First Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services (Mobiquitous 2004), Boston, August 2004. (with K. Guo, S. Paul and S. Rangarajan)

Session Level Techniques for Improving Web Browsing Performance on Wireless Links. Proceedings of the 13th International World Wide Web Conference (WWW 2004), New York, May 2004. (with S. Rangarajan and P. Rodriguez)

A Technique for User Specific Request Redirection in a Content Delivery Network. Proceedings of the 8th International Workshop on Web Content Caching and Distribution (WCW2003), Hawthorne, New York, September 2003. (with S. Rangarajan and P. Rodriguez)