Signaling-embedded short preamble MAC for multihop wireless sensor networks

Abstract

Applications of WSN usually generate low-rate traffic so the communication channel is expected to be idle most of the time. Therefore idle listening is very critical source of energy dissipation in wireless sensor networks. To reduce idle listening, we propose preamble sampling MAC that is named SESP-MAC. The main idea of SESP-MAC is to add control information into the short preamble frame. So the stream of short preambles is used not only for preamble sampling but also for avoiding overhearing, decreasing control packet overhead and reducing the listening of the redundant message, caused by message-flooding. © 2008 Springer Berlin Heidelberg.