Mobility

Ergodic Transmission Capacity of Wireless Ad Hoc Networks With Interference Management

Date Added: Mar 2011
Format: PDF

Most work on wireless network throughput ignores the temporal correlation inherent to wireless channels because it degrades tractability. To better model and quantify the temporal variations of wireless network throughput, this paper introduces a metric termed Ergodic Transmission Capacity (ETC), which includes spatial and temporal ergodicity. All transmitters in the network form a homogeneous Poisson point process and all channels are modeled by a finite state Markov chain. The bounds on outage probability and ETC are characterized, and their scaling behaviors for a sparse and dense network are discussed. From these results, the authors show that the ETC can be characterized by the inner product of the channel-state related vector and the invariant probability vector of the Markov chain.