基于调度的无线自组网邻居节点检测算法研究

发布时间：2018-03-01 03:32

本文关键词： 调度自适应邻居节点检测能量利用率　出处：《仪器仪表学报》2014年05期 　论文类型：期刊论文

【摘要】：无线自组网实际应用中,查找邻居节点的效率是衡量协议性能的重要因素之一,通常采用竞争机制占用信道。但在节点密度较大的自组网络中,信道载荷加重导致传输成功率降低,造成信息包重传次数增加,从而引起节点能量严重浪费问题。针对该问题,提出一种基于调度的无线自组网邻居节点检测算法,随机等待P时隙广播消息包后,在获取并分析平均一跳邻居节点数基础上,确定最优时间帧长度初始值,根据成功接收消息包数量实时调整时间帧长度。仿真和实验结果表明,该算法可大幅减少消息包的碰撞概率,有效提高无线自组网的能量利用率和吞吐率。
[Abstract]:In the practical application of wireless ad hoc networks, the efficiency of finding neighbor nodes is one of the important factors to measure the performance of the protocol, and the competition mechanism is usually used to occupy the channel, but in the ad hoc networks with high node density, the efficiency of finding neighbor nodes is an important factor to measure the performance of the protocol. The increase of channel load leads to the decrease of transmission success rate and the increase of the number of retransmissions of information packets, which results in a serious waste of node energy. In view of this problem, a scheduling based neighbor node detection algorithm is proposed. After randomly waiting for P-slot broadcast message packet, on the basis of obtaining and analyzing the average number of one-hop neighbor nodes, the initial value of the optimal time frame length is determined, and the time frame length is adjusted in real time according to the number of successful received packets. The simulation and experimental results show that, This algorithm can greatly reduce the collision probability of message packets and effectively improve the energy utilization and throughput of wireless ad hoc networks.
【作者单位】：浙江水利水电学院计算机与信息工程系;杭州电子科技大学计算机学院;
【基金】：国家自然科学基金重大项目(61190113)、国家自然科学基金面上项目(61272539)资肋
【分类号】：TN929.5;TP212.9

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