ECE Graduate Seminar - Dr. Benyuan Liu, Tego, Inc.

Network capacity is a key characteristic of a wireless network, representing the long-term achievable data transmission rate that a network can support. Previous work has shown that the capacity of a wireless ad hoc network diminishes as the number of nodes increases. In this talk I present the benefit of infrastructure support on the capacity of wireless ad hoc networks, where an overlay of wired base stations is deployed in wireless ad hoc networks. Such a network architecture is often referred to as hybrid wireless network or multihop cellular network. Our results show that different network dimensions lead to significantly different capacity scaling laws. I will present the capacity scaling laws for 1-dimensional, two-dimensional plane, and two-dimensional strip network scenarios. Furthermore, we find that the different capacity scaling behaviors are attributed to the percolation properties of the respective network models.