Design of wireless networks remains a challenging problem due to the complex and dynamic interactions among wireless devices and their environments. In this talk, we present some of the recent efforts we made towards better understanding and engineering of wireless networks. First, a comprehensive MAC model is developed for multihop 802.11 wireless networks with heterogeneous transmit power levels and carrier-sensing thresholds. Such a model can be used to predict the performance of dense wireless hotspots or mesh networks, or infer sources of starvation in the network. Then, we discuss a robust channel allocation mechanism that utilizes knowledge of pairwise channel gain. The talk will be concluded with an overview of research activities in the Wireless System Research Lab (WiSeR) at the University of Houston.
Rong Zheng received her Ph.D. degree from the CS department, University of Illinois, Urbana-Champaign in 2004 and earned her M.E.and B.E. in Electrical Engineering in 1998 and 1996 from Tsinghua University, P.R. China. She is now an assistant professor at the CS department, University of Houston. Her current research interests include resource management and diagnostic of large-scale distributed systems, performance analysis and prototyping of wireless networks, and wireless location tracking. Rong Zheng is the recipient of NSF Career Award in 2006.