基于集总式伯努利过程算法的高密度Ad Hoc网络MAC协议  

HIGH-DENSITY AD-HOC NETWORK MAC PROTOCOL BASED ON CONCENTRATED BERNOULLI PROCESS

作　　者：王富荣[1] 

机构地区：[1]南通航运职业技术学院,江苏南通226010

出　　处：《计算机应用与软件》2013年第12期144-146,154,共4页Computer Applications and Software

基　　金：江苏省交通科学研究计划项目(2011Y21- 3)

摘　　要：针对高密度Ad Hoc网络的竞争类MAC协议由于报文冲突而不能对实时业务提供QoS传输和固定时隙分配MAC协议不适用于分布式网络的问题,提出一种新的动态时隙分配协议——CB-TDMA协议。该协议采用全新的基于集总式伯努利过程冲突消除算法解决了报文接入冲突,且控制开销较小。仿真结果表明,对于节点密度较高、时延敏感的Ad Hoc网络来说,CB-TDMA协议可以为实时业务提供有效支持,在接入效率、时隙利用率和接入时延方面呈现出较好性能。Competitive class MAC protocol of high-density Ad-hoc network cannot provide QoS transmission for real-time business due to packet collision, and tile MAC protocol with fixed time slot allocation does not fit the distributed networks. Aiming at these problems, we propose a new dynamic time slot allocation protocol, CB-TDMA. The protocol adopts brand new conflicts elimination algorithm based on concentrated Bernoulli process to have resolved the packet access collision, and the control overhead is small as well. Simulation results indicate that for Ad-hoc network with high-density nodes and time delay sensitivity, CB-TDMA protocol can provide efficient support for real-time business, and present good performance on access efficiency, time slot utilisation and access delay.

关 键 词：动态时隙分配 移动自组织无线网 时延敏感 媒体访问控制协议 伯努利过程 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]