Adaptive MAC protocol for wireless sensor networks
Ruihua Zhang · Computer Engineering and Applications Journal · 2010
This paper proposes a new MAC protocol,ATMAC which can be adaptive to the traffic load.Based on the TMAC pro-tocol,aimed to low energy consumption,low latency,several scheme is used to make nodes sleep more when their traffic is lower,while be awake more when their traffic is high,such as adaptive duty-cycle,adaptive contention window,and privileged data transfer queue.Moreover,the duty-cycle of nodes refer to in low and high traffic can be different even they are in one virtual cluster.So the energy consumption of idle listening and latency can be reduced while increasing the throughput.The simulation results with ns-2 show that ATMAC outperform TMAC in energy consumption and latency.