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AdHoc网络中基于传输状态的自适应退避算法

DOI: 10.13190/jbupt.201204.68.liumx, PP. 68-71

Keywords: Ad,Hoc网络,二进制指数退避,重传次数,竞争节点数

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Abstract:

提出一种适用于AdHoc网络、基于传输状态的自适应退避(ABTS)算法.为了预测信道状态,ABTS算法采用局部竞争节点估计的方法,并且针对不同的信道状态采用退避窗口乘性或线性增加的策略.鉴于重传多次的数据容易被丢弃,ABTS赋予重传多次的数据高传输优先级,以减少数据丢失.理论分析和仿真结果表明,ABTS算法能满足AdHoc网络多跳特性,并对网络吞吐量、延时和冲突概率有明显地改善,性能优于经典的二进制指数退避(BEB)算法

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