Sreenath Ramanath

Doctorant

Biography

I am from Bangalore, INDIA. I am pursuing my doctorate under the guidance of Prof. Eitan ALTMAN (INRIA) and Prof. Merouane DEBBAH (SUPELEC). I have a Masters from Indian Institute of Science (IISc), Bangalore. In the past, I had been involved in research and development activities in the areas of GPS, Integrated navigation, Voice-band Modems, CDMA, WLAN and WiMAX at ACCORD, ITTIAM and BECEEM. My current research interests span optimization, game theory, wireless networks, communication theory and signal processing. I live near the beautiful fort-town of Avignon in south of France and work from LIA, University of Avignon.

Research activities

I am working on aspects related to Optimization of pico-cell networks. The goal is to develop mathematical models and efficient algorithms for self-optimizing pico-cell networks. The work would consider aspects of capacity, coverage, fairness, mobility, etc., in the backdrop of broadband wireless services based on CDMA, WiMAX or LTE technologies. Initial part of the work has focussed on the following problems. 1) Finding optimal cell sizes which maximizes spatial throughput using fluid models 2) Assigning base station locations to satisfy various fairness criterion under large population limits 3) Analysis of mobility in small cell networks using queuing theory 4) Asymptotic analysis of precoded small cell networks using random matrix theory.

Papers in refereed conferences

• Sreenath Ramanath, Merouane Debbah, Eitan Altman, Vinod Kumar, "Asymptotic analysis of precoded small cell networks", accepted, InfoCom 2010
• Sreenath Ramanath, Eitan Altman, Vinod Kumar, Merouane Debbah, "Optimizing cell size in pico-cell networks", Invited paper, RAWNET/WCNC-3 Workshop, WiOPT 2009, Jun 27, Seoul, South Korea
• Sreenath Ramanath, Eitan Altman, Vinod Kumar, Veeraruna Kavitha, Laurent Thomas, "Fair assignment of base stations in cellular networks", 22nd World Wireless Research Forum (WWRF) Conference, May 5-7, 2009, Paris, France
• Rahul Garg, Roshan Baliga, Sreenath Ramanath, "Sensitivity of OFDM based WLANs to front-end impairments", International Signal Processing Conference 2003, Dallas, Texas
• Amaranada Reddy, Archana Nayak, Gurucharan, Veeraruna Kavitha, Sreenath Ramanath, "Implementation of a Multi-Channel Baseband CDMA Receiver on a ADSP2189M Processor", International Digital Signal Processing Conference 2001, Boston, MA

Under preperation

• "Spatial queuing analysis for mobility in pico cell networks"
• "New call-block, call-drop probabilities in cellular networks"
• "Hybrid resource allocation policies in OFDMA cellular networks"
• "Asymptotic analysis of MMSE precoders in small cell networks"

PATENTS (under review)

• Method and system for determining a log-likelihood ratio (LLR) corresponding to each bit of a symbol – filed in 2007
• Method and apparatus for combining de-interleaving with FFT and demapping – filed in 2005
• Multi processor implementation for signals requiring fast processing – filed in 2005

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LIA, Universite d'Avignon