Date Added: Apr 2011
This paper presents a model for reliable packet delivery in Wireless Sensor Networks based on Discrete Parameter Markov Chain with absorbing state. The authors have demonstrated the comparison between cooperative and non cooperative Automatic Repeat reQuest (ARQ) techniques with the suitable examples in terms of reliability and delay in packet transmission. Wireless Sensor Networks (WSNs) are the topic of intense academic and industrial studies. Research is mainly focused on energy saving schemes to increase the lifetime of these networks. There is an exciting new wave in sensor applications-wireless sensor networking-which enables sensors and actuators to be deployed independent of costs and physical constraints of wiring.