Low time delay WSNs MAC protocol based on competition and TDMA
Du Mi · Transducer and Microsystem Technologies · 2014
Aiming at accumulative latency problem of classic S-MAC protocol,propose LH-MAC protocol,a low time delay hybrid MAC protocol based on competition and TDMA for wireless sensor networks(WSNs).According to number of hops,LH-MAC provides service with different priorities,so that the packets which have achieved multi-hop transsion have more probability to access to the channel and to realize low time delay transmission of remote node.Comparing to S-MAC and the LH-MAC,simulation results show that LH-MAC reduce end-to-end time delay effectively under the premise of energy efficiency.