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多跳Ad Hoc网络中支持MIMO的广播传输调度算法 被引量:3

Broadcast scheduling algorithms in multihop Ad Hoc networks with MIMO links
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摘要 针对当前支持MIMO的多址协议仅支持点对点传输,提出多跳Ad Hoc网络中支持MIMO的广播传输时分多址接入协议,其核心算法是保证每个节点无冲突传输广播业务且保证最小帧长的时隙调度算法,充分利用了MIMO系统并行数据流传输的特性,该特性可使发生传输冲突的节点集从两跳范围内的邻节点减小到一跳范围内的邻节点,从而提高网络容量.结果表明该协议可极大地提高网络容量和减小平均分组时延. As the current medium access control (MAC) protocols with multiple input multiple output (MIMO) links only bear point to point service, a broadcast scheduling algorithm in multihop Ad Hoc networks with MIMO links is proposed. The key to the algorithm is the time slot scheduling which guarantees collision-free transmissions for every node and minimum frame length. The algorithm increases the simultaneous broadcast transmissions of MIMO links efficiently. Due to the interference null capacity of MIMO links, the interference node set of each node can decrease from two hop neighbors to one hop neighbors, Results show that our algorithm can greatly improve network capacity and decrease average packet delay.
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2006年第4期580-583,621,共5页 Journal of Xidian University
基金 高等学校博士学科点专项科研基金(20050701007) 国家自然科学基金和微软亚洲研究院联合资助项目(60372048) 高等学校优秀青年教师教学科研奖励计划资助项目 国家自然科学基金重大项目(60496316) 国家"863"课题认知无线电技术研究(2005AA123910) 教育部科学技术研究重点项目(104171)
关键词 多输入多输出系统 时分多址接入 广播 多跳Ad Hoe网络 multiple input multiple output(MIMO) time division multiple access(TDMA) broadcast multihop Ad Hoc network
作者简介 李建东(1962-),男,教授.
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参考文献9

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同被引文献27

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