Date Added: Aug 2011
Modern Medium Access Control (MAC) protocols for Wireless Sensor Networks (WSN) focus on energy-efficiency by switching a node's radio on only when necessary. This introduced rendezvous problem is gracefully handled by modern asynchronous approaches to WSN MAC's, e.g. X-MAC, using strobed preambles. Nevertheless, most MAC layer ignore the possible benefits in energy consumption and end-to-end latency, supporting opportunistic routing can provide. In this paper, the authors present PaderMAC, a strobed preamble MAC layer which supports cross-layer integration with an arbitrary opportunistic routing layer.