BAN网络节点低功耗MAC协议的设计

Research of Low Power MAC Protocol of Network Node in BAN

本文针对IEEE802.15.6标准中的MAC层协议采用固定保护时间弥补时钟漂移而造成能量浪费这一问题研究并实现一种低功耗的适宜BAN网络的MAC协议。该协议依据超帧结构的模式构建了一种新的MAC帧结构模型,并结合时间补偿算法对帧结构中的保护时间进行自适应调整,最后使用OPNET14.5仿真两种MAC协议。结果表明,本文研究的基于自适应时间补偿帧结构的MAC协议相对于固定的保护时间IEEE802.15.6的MAC协议而言,降低了终端节点能耗以及延长了网络的生存周期。

In the paper, a low power MAC protocol was addressed to resolve the problem that the MAC layer protocol in IEEE802.15.6 standard uses a fixed time to make up for the protection of energy waste caused by clock drift .The protocol is based on the superframe structure of a new model constructed MAC frame structure model, and combined with the compensation algorithm to the time frame structure of the adaptive adjustment of a guard time, and finally the use of two kinds of simulation OPNET14.5 MAC protocol. The results show that this study adaptive time-based MAC protocol compensated frame structure relative to the fixed guard time IEEE802.15.6 MAC protocol, reducing energy consumption and extend the terminal node network lifetime.