Outage probability of multihop wireless CDMA sensor networks with correlated interferers

This paper evaluates the end-to-end outage probability of a CDMA based static multi-hop wireless sensor network (WSN) in shadowed environment. An interference model for multi-hop is presented considering correlation amongst interferers. Three different information delivery mechanisms are studied using regenerative relays with or without error correction capability. Outage probability for each mechanism is evaluated and compared under several conditions of node density, shadowing, correlation, power control error and number of hops. The effects of node density, correlation amongst interferers, power control error (pce) and number of hops on over all outage probability are also investigated. Analytical results are supported by simulation.