SCT-MAC: A Scheduling Duty Cycle MAC Protocol for Cooperative Wireless Sensor Network

Effective techniques for extending lifetime in multi-hop Wireless Sensor Networks (WSNs) include duty cycling and more recently introduced cooperative transmission range extension. However a scalable MAC protocol has not been presented that combines both. In this paper, the authors present a new Scheduling Co-operaTive MAC protocol (SCT-MAC) for the multi-hop wireless sensor network, which introduces distributed duty-cycle scheduling and enables nodes to wake up on demand in the data period. The protocol provides a wake-up rendezvous for cooperators to reach a CT agreement and reduces contention over adjacent flows, and the on-demand wake-up further reduces idle listening in the data period.

Provided by: Georgia Institute of Technology Topic: Mobility Date Added: May 2012 Format: PDF

Find By Topic