Ming Hsieh Department of Electrical Engineering student Srinivas Yerramalli received one of two student best paper awards at the 2012 International Conference on Signal Processing and Communications (SPCOM), sponsored by the Indian Institute of Science in Bangalore, India. Yerramalli’s winning paper is entitled "Stability of Transmitter Cooperation Over a Multiple Access Channel," and was co-authored with EE faculty Rahul Jain and Yerramalli’s Ph.D. advisor, Urbashi Mitra.
While the benefits of cooperation have been long studied in the wireless communications community, the conventional wisdom was that nodes would naturally cooperate to achieve network benefits. Yerramalli showed that heterogeneous networks without central control challenge this assumption. The problem of determining which nodes in a wireless network would cooperate in a stable fashion and the strategies they would adopt for cooperation is of great interest to the future of heterogeneous wireless networks. However, the feasibility and stability of cooperation is not well understood even for elementary networks like the multiple access, broadcast and interference channels, much less for larger networks.
The SPCOM conference is biannual, and July’s conference was the ninth in this series. Several Trojans, past and present, took an active part in the conference from conference organization, technical program committee members, tutorial presentations and paper presentation. They include: Alex Dimakis, Rahul Jain, Vijay Kumar, Ranjan Mallik, and Urbashi Mitra.
Yerramalli is a Ming Hsieh Institute (MHI) Ph.D. Scholar. His biography and a link to a video of him presenting his research are accessible at that site. He will complete his Ph.D. in Fall 2012 and is actively pursuing research positions in academia and industry.