A New Broadcast Mechanism of Asynchronous MAC for WSNs
LI Xiantao · Chuangan jishu xuebao · 2011
Asynchronous MAC protocols for Wireless Sensor Networks(WSN)are researched.PBMAC,a new broadcast MAC protocol with shorter preamble,is proposed based on the typical XMAC protocol.PBMAC acquires the sampling schedule by employing neighbor inform mechanism as well as improved preamble sequence.As a result,a shorter preamble is achieved.Evaluated by NS2 simulation,PBMAC is an idea protocol with high performance in terms of energy efficiency and delay compared with BMAC.