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基于广播机制的流量自适应混合MAC协议研究 被引量:1

Research on Traffic-adaptive Hybrid MAC Protocol Based on Broadcast Mechanism
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摘要 针对流量自适应混合MAC协议的不足,提出一种广播机制改进方案.在基于CSMA和TDMA流量自适应混合MAC协议基础上引入广播机制,节点被提前通知只在发送或接受数据时处于活动状态,其他时刻则处于休眠状态,从而能最大限度地避免串音,空闲侦听和数据冲突.NS2仿真表明,改进的协议能进一步减少系统能量消耗,维持较高的吞吐率. Aiming at the disadvantage of traffic-adaptive hybrid MAC protocol, an improved proposal of broadcast mechanism was proposed in this paper. Based on CSMA and TDMA traffic-adaptive hybrid MAC protocol, the broadcast mechanism was introduced to MAC protocol. In the proposed protocol, nodes were notified in advance when they were the receivers of packets, and a node was active only when it was the sender or the receiver, and during other time it just gone to sleep. So the overhearing, idle listening and collisions could be avoid as possible. NS2 Simulation results show that improved protocol can effectively reduce system power con- sumption, and can maintain higher throughput.
出处 《小型微型计算机系统》 CSCD 北大核心 2012年第4期843-846,共4页 Journal of Chinese Computer Systems
基金 广西区自然科学基金项目(桂科自0991252)资助 桂林理工大学博士科研启动基金项目资助 广西研究生教育创新计划项目(2010105960812M21)资助
关键词 流量自适应 广播机制 MAC协议 NS2 traffic-adaptive broadcast mechanism MAC protocol NS2
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参考文献13

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