无线体域网传输协议研究

发布时间：2018-04-11 17:48

本文选题：无线体域网 + MAC协议　；参考：《烟台大学》2014年硕士论文

【摘要】：近些年来，人口老龄化急剧加速，医疗费用持续地恶性膨胀，导致了全球性的医疗危机。无线体域网把人体变成通信网络的一部分，可实时有效地监测人体的健康状况，被视为解决“人口老龄化急剧加速和医疗费用持续恶性膨胀”的关键支撑技术之一。无线体域网（即WBAN）是一种无线传感器网络，一般使用电池供电，，其能量资源有限，能耗问题是制约无线体域网发展的关键性因素，因此，通过设计高效的通信协议来降低网络的能耗，进而延长网络的生命周期显得尤其重要。在WBAN中，传感器的无线射频部分消耗了最多的能量。在控制射频模块工作和减少传感器节点的平均能耗上，MAC协议发挥了重要作用。本文阐述了MAC协议对能量有效性的高要求和服务质量QOS的高标准，分析了不同种类MAC协议的优缺点，并对已提出的无线体域网MAC协议进行了总结。网络拓扑结构体现的是网路中各个元素之间的相互关系，它是建设无线体域网的第一步，也是实现各种通信协议的基础，它对网络的性能、系统的可靠性、通信费用等都有重大影响。路由协议主要用来将网络中的数据包由源节点发送到目的节点，在此过程中，路由协议可以找出源节点和目的节点之间的最优路径，然后将数据包在最优路径上进行传送。对于无线体域网，传感器节点数目较多，节点能量有限，同时由于人体内和人体表面无线环境的特殊性，发展高能效高可靠性的路由协议势在必行。本论文对网络拓扑结构及其路由协议进行了详细的分析，并主要阐述了无线自组织网络及其两种典型路由协议AODV与DSDV。本论文的主要创新点在于依据人体体征参数测量的实际情况构建了无线体域网的人体结构模型，利用网络仿真软件NS2对Ad Hoc中经典的DSDV和AODV路由协议在无线体域网中的应用性能进行仿真，对比分析了发包速率和发送数据包大小的异同对基于AODV和DSDV路由协议的WBAN网络的端到端延迟、丢包率以及吞吐量的影响，为经典的路由协议在WBAN上的应用提供了一定的理论依据和参考价值。
[Abstract]:In recent years, the aging of the population has accelerated rapidly and medical costs have continued to inflate, leading to a global medical crisis.Wireless body-area network (WPSN) turns human body into a part of communication network, which can effectively monitor human health status in real time. It is regarded as one of the key supporting technologies to solve the problem of "rapid acceleration of population aging and continuous malignant expansion of medical costs".Wireless body area network (WBAN) is a kind of wireless sensor network, which generally uses battery to supply power, and its energy resource is limited. Energy consumption is the key factor that restricts the development of wireless body area network.It is very important to design efficient communication protocols to reduce network energy consumption and prolong network life cycle.In WBAN, the wireless radio frequency part of the sensor consumes the most energy.MAC protocol plays an important role in controlling RF module and reducing the average energy consumption of sensor nodes.In this paper, the high requirement of MAC protocol for energy efficiency and the high standard of quality of service (QOS) are described. The advantages and disadvantages of different kinds of MAC protocols are analyzed, and the proposed MAC protocol of wireless body area network is summarized.The network topology reflects the relationship among the elements in the network. It is the first step to construct the wireless body area network and the basis of various communication protocols. It is the performance of the network and the reliability of the system.Communication costs and so on have a major impact.The routing protocol is mainly used to send the data packets from the source node to the destination node. In this process, the routing protocol can find the optimal path between the source node and the destination node, and then transmit the data packet on the optimal path.For wireless body-area network, the number of sensor nodes is large, the node energy is limited, and because of the particularity of wireless environment in human body and human body surface, it is imperative to develop high energy efficiency and high reliability routing protocol.In this paper, the network topology and its routing protocol are analyzed in detail, and the wireless ad hoc network and its two typical routing protocols, AODV and DSDV, are discussed.The main innovation of this paper is to construct the human body structure model of wireless body area network according to the actual situation of physical sign parameter measurement.The application performance of classical DSDV and AODV routing protocols in Ad Hoc in wireless body area network is simulated by network simulation software NS2.The effects of packet sending rate and packet size on end-to-end delay, packet loss rate and throughput of WBAN network based on AODV and DSDV routing protocol are compared and analyzed.It provides some theoretical basis and reference value for the application of classical routing protocols in WBAN.
【学位授予单位】：烟台大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN915.04

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