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This paper evaluates the end-to-end performance of a CDMA based static multi-hop wireless sensor network (WSN) in shadowed environment. An interference model for multi-hop is presented using correlated interferers. Three different information delivery mechanisms are studied using regenerative relays with or without error correction capability. Energy requirement for successful delivery of a data packet for each mechanism is evaluated and compared under several conditions of node density, shadowing, correlation, power control error, packet length, and number of hops. The effects of node density, correlation amongst interferers, power control error (pce) and number of hops on over all BER are also investigated. Analytical results are supported by simulation.
Date of Conference: July 29 2010-Aug. 1 2010