Research and improvement about RMAC protocol for Wireless Sensor Networks
Yang Yong · Computer Engineering and Applications Journal · 2013
Considering the problem of packet loss handling mechanism on RMAC(Routing-enhanced Medium Access Control) protocol, an efficient multi-hop transmission of MAC protoco(lEfficiency-RMAC, E-RMAC)which is based on the retransmission mechanism is proposed. Determine whether transmission is failure or not according to the received value in the given time T. When the transmission of control frame is failure, use a single retransmission mechanism, and introduce the sleep mode to reduce the network energy consumption. When the transmission of data packets is failure, use several retransmissions to ensure reliable single-cycle real-time multi-hop transmission and enhance the channel utilization. The simulation results show that achieving a high efficiency and a long network life, the E-RMAC is a better choice than the RMAC in terms of the transmission delay and network throughput.