【摘要】 基于可扩充的二相编码,提出一种新型的区分服务的多信道媒体接入控制协议(CMM AC-SD).CMM AC-SD在现有分簇多信道协议的基础上,通过可扩充的二相编码来设计接入帧格式,以达到减少节点的控制开销和延迟的目的.分析表明,通过考虑区分服务,簇内服务级别高的节点延迟减少,而服务级别低的节点延迟比较大;在保证分簇的个数不变的条件下,簇头获取帧的延迟就不会随着网络规模的增大而急剧增加.更多还原

【Abstract】 A cluster-based multi-channel medium access control protocol based on Two-phase coding and Service Differentiation-CMMAC-SD is proposed in this paper.CMMAC-SD designs the access frame format based on a scalable two-phase coding scheme in order to reduce the control overhead and delay.Analysis show the proposed protocol provides the nodes with high service priority delay less than the nodes with low priority in the specify cluster.And the delay in the frame acquisition wouldn’t increase shapely with the increasing network size when the number of the cluster keeps the same.更多还原