Low delay and low energy contention based synchronous mac protocols for event driven wireless sensor networks

Abstract

Monitoring of delay sensitive events such as fire and intrusions in unsafe regions is an important class of wireless sensor network WSN applications In event driven WSNs sensor nodes are densely deployed and they operate with a low duty cycle to reduce their energy consumption in idle listening The following two characteristics of duty cycled contention based synchronous MAC protocols make them the very suitable for delay sensitive event monitoring applications 1 they are robust to dyn