Room 1020 ETB (Emerging Tech. Building)
Radu Stoleru/CSE Dept.
The explosion in the number of WiFi and Wireless Sensor Network (WSN) deployments is exacerbating the coexistence problem, observed and reported in the literature as a significant performance degradation in co-located networks employing the two different wireless standards. The wireless coexistence problem has, thus far, been studied primarily using hardware, due to the lack of analytical results and lack of good wireless coexistence models in network simulators. Thus, the progress on addressing the wireless coexistence issues has been slow. In this talk, I will present the first analytical model and the first protocol coexistence simulator for coexisting WiFi and WSNs. We derive analytically, using Markov chains, the normalized saturation throughput of coexisting WiFi and WSNs, simulate the protocol coexistence using Monte Carlo methods, and validate our results through extensive experiments on real hardware. These tools can be used for convenient and accurate performance estimation of medium-large scale deployments. I will conclude this talk by briefly presenting several other research directions in the Laboratory for Embedded & Networked Sensor Systems at Texas A&M.
Bio: Dr. Radu Stoleru is currently an Assistant Professor in the Department of Computer Science and Engineering at Texas A&M University, and head of the Laboratory for Embedded & Networked Sensor Systems (LENSS). His research interests are in deeply embedded wireless sensor systems, distributed systems, embedded computing, computer networking and wireless security. He received his Ph.D. in computer science from the University of Virginia in 2007. While at the University of Virginia, he received from the Department of Computer Science the Outstanding Graduate Student Research Award for 2007. He has authored or co-authored over 60 conference and journal papers with over 1,800 citations. He is currently serving as an editorial board member for 3 international journals and has served as technical program committee member on numerous international conferences.