CAJ | 학술논문

　　为了提高无线传感器网络的吞吐量，降低时延，本文设计了一种多信道MAC协议——MCHMAC。它采用调度和竞争访问机制相结的混合方式来传输信息，通过动态调整节点的活跃与睡眠状态的时长来节省能量。MCHMAC使用信道状态估计算法对信道进行评估，利用信道调度表来为节点调度状态最优的信道。仿真实验结果证明，本协议提高了吞吐量，降低了网络时延。
　　위료제고무선전감기망락적탄토량，강저시연，본문설계료일충다신도MAC협의——MCHMAC。타채용조도화경쟁방문궤제상결적혼합방식래전수신식，통과동태조정절점적활약여수면상태적시장래절성능량。MCHMAC사용신도상태고계산법대신도진행평고，이용신도조도표래위절점조도상태최우적신도。방진실험결과증명，본협의제고료탄토량，강저료망락시연。
In order to improve wireless sensor networks throughput and reduce time delay, a multichannel MAC protocol called MCHMAC is designed, which use contention based and scheduled based hybrid access mechanism to transmit information, the energy is saved by dynamically adjusts the active and sleep time of nodes. MCHMAC use channel state estimation algorithm to evaluate channel, it also proposes to find a best channel by a channel schedule table for nodes. Experimental results show that this protocol improves the throughput and reduces the network delay.