郑州大学学报（工学版）2011，Vol.32Issue(2)：93-96,4.
基于数据优先级的Ad hoc网络MAC协议研究
A Data-Priority MAC Protocol for Ad Hoc Network
摘要
Abstract
An improved wireless MAC protocol is proposed based on data priority.The priority of data is identiffed according to a correlative strategy at source node.Both data and its priority are encapsulated into a frame and transmitted in network.When forwarding a data frame in IEEE 802.11 DCF mode, the node adjusts the contention window according to the data priority to make sure that the data with different priorities uses different contention windows, so that the collisions in the wireless channel can be reduced and the data with highpriority can be transmitted quickly.The simulation results showed that the improved protocol not only shortened the transmitting delay of data with high-priority, but also reduced the collisions by almost 50％.关键词
IEEE 802.11/数据优先级/竞争窗口,网络节点/Ad hoc分类
信息技术与安全科学引用本文复制引用
王延年,郑晓庆..基于数据优先级的Ad hoc网络MAC协议研究[J].郑州大学学报（工学版）,2011,32(2):93-96,4.基金项目
河南省基础与前沿技术研究基金项目(72300410430) （72300410430）
