A Traffic-Adaptive Duty-Cycle MAC Protocol for Multi-hop Wireless Sensor Networks
Seong‐Cheol Kim, Jun Heon Jeon, Joong Jae Kim · Advanced science and technology letters · 2014
In this paper, we propose a traffic-adaptive duty-cycle MAC protocol which reduces data transmission delay from source node to destination node and node energy consumption in multi-hop Wireless Sensor Networks. An operation cycle of the proposed MAC protocol is consists of four periods as in LO-MAC. But in the proposed MAC protocol all the nodes in the data path repeat the Sleep periods only when an event occurs. And during Data period nodes immediately go into sleep mode with overhearing the PION packet. Performance evaluation shows that the proposed MAC protocol improves the transmission delay and the throughput compared to the RMAC.