无线传感器网络节能策略的研究

发布时间：2018-02-05 23:36

本文关键词： 无线传感器网络节能技术能量感知路由负载匀衡　出处：《南京理工大学》2012年硕士论文　论文类型：学位论文

【摘要】：近年来,无线传感器网络技术得到了飞速发展和广泛关注。作为影响传感器网络性能的一个核心因素,网络的能耗问题己成为当前的研究热点之一。本论文重点研究了与无线传感器网络节能相关的两个方面的问题：节点能耗问题及能量感知路由问题,提出了相应的模型和算法,并进行了仿真验证与分析。首先,文章研究介绍了无线传感器网络的网络体系结构及标准化进程。第二,研究介绍了无线传感器网络现有的路由协议,并对它们的优缺点进行了对比分析。第三,为了降低传感器节点能量消耗,提出一种基于DVS和DMS协作的节能技术。该技术采用了预测机制,通过对日志数据的分析处理,估算传感器节点的微处理器及无线电传输设备的负荷,从而实现DVS和DMS很好地协作。仿真结果表明,相比未使用任何节点节能技术的传感器,提出的方法能够实现节点节能高达40%左右。第四,提出具有三个不同的版本路由算法——OPA。该算法采用负载均衡技术及网络的能量估算技术,通过平均在每个传输轮的最大归一化能量而进行路径选择。最后,对三个版本的OPA进行了算法描述和实验仿真。仿真结果表明,提出的算法的性能优越,能大幅度地提高网络的生命周期及汇聚节点收到的数据包数量。
[Abstract]:In recent years, wireless sensor networks (WSN) technology has been rapidly developed and widely concerned, as a core factor affecting the performance of WSN. The energy consumption of wireless sensor networks has become one of the current research hotspots. This paper focuses on two issues related to energy saving in wireless sensor networks: node energy consumption and energy-aware routing. The corresponding model and algorithm are put forward, and the simulation results are verified and analyzed. Firstly, this paper introduces the network architecture and standardization process of wireless sensor networks. Secondly, it introduces the existing routing protocols of wireless sensor networks. And their advantages and disadvantages are compared and analyzed. Third, in order to reduce the energy consumption of sensor nodes, a energy-saving technology based on DVS and DMS cooperation is proposed. Through the analysis and processing of log data, the load of microprocessor and radio transmission equipment of sensor node is estimated, so that DVS and DMS can cooperate well. The simulation results show that. Compared with the sensor without any node energy saving technology, the proposed method can realize the node energy saving up to 40%. 4th. In this paper, three versions of routing algorithm, OPA, are proposed. The algorithm uses load balancing technology and network energy estimation technology. Path selection is made by averaging the maximum normalized energy of each transmission wheel. Finally, three versions of OPA are described and simulated. The simulation results show that the proposed algorithm is superior in performance. It can greatly increase the lifetime of the network and the number of packets received by the convergence node.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TN929.5;TP212.9

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