Spatial Capacity of Multiple Access Wireless Networks

Abstract — We study the capacity of multiple access networks both on uplink and downlink. In our model each user requires a given signal to interference plus noise ratio (SINR) and the capacity region is obtained as a solution of a power allocation problem. In this paper, we emphasize on the differences between uplink and downlink. The mathematical analysis of the capacity region is led in the framework of ergodic point processes and we exhibit the links between the geometry of the network and its capacity region. On the downlink we pay attention to various network architectures and levels of cooperation between base stations: macrodiversity, load balancing and traditional cellular networks. Index Terms — spatial capacity, CDMA networks, macrodiversity, spatial point processes, power control, spectral radius. I