本文選題：無線體域網(wǎng) + MAC協(xié)議��； 參考：《煙臺大學(xué)》2014年碩士論文

【摘要】：近些年來，人口老齡化急劇加速，醫(yī)療費用持續(xù)地惡性膨脹，導(dǎo)致了全球性的醫(yī)療危機。無線體域網(wǎng)把人體變成通信網(wǎng)絡(luò)的一部分，可實時有效地監(jiān)測人體的健康狀況，被視為解決“人口老齡化急劇加速和醫(yī)療費用持續(xù)惡性膨脹”的關(guān)鍵支撐技術(shù)之一。 無線體域網(wǎng)（即WBAN）是一種無線傳感器網(wǎng)絡(luò)，一般使用電池供電，，其能量資源有限，能耗問題是制約無線體域網(wǎng)發(fā)展的關(guān)鍵性因素，因此，通過設(shè)計高效的通信協(xié)議來降低網(wǎng)絡(luò)的能耗，進(jìn)而延長網(wǎng)絡(luò)的生命周期顯得尤其重要。 在WBAN中，傳感器的無線射頻部分消耗了最多的能量。在控制射頻模塊工作和減少傳感器節(jié)點的平均能耗上，MAC協(xié)議發(fā)揮了重要作用。本文闡述了MAC協(xié)議對能量有效性的高要求和服務(wù)質(zhì)量QOS的高標(biāo)準(zhǔn)，分析了不同種類MAC協(xié)議的優(yōu)缺點，并對已提出的無線體域網(wǎng)MAC協(xié)議進(jìn)行了總結(jié)。 網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)體現(xiàn)的是網(wǎng)路中各個元素之間的相互關(guān)系，它是建設(shè)無線體域網(wǎng)的第一步，也是實現(xiàn)各種通信協(xié)議的基礎(chǔ)，它對網(wǎng)絡(luò)的性能、系統(tǒng)的可靠性、通信費用等都有重大影響。路由協(xié)議主要用來將網(wǎng)絡(luò)中的數(shù)據(jù)包由源節(jié)點發(fā)送到目的節(jié)點，在此過程中，路由協(xié)議可以找出源節(jié)點和目的節(jié)點之間的最優(yōu)路徑，然后將數(shù)據(jù)包在最優(yōu)路徑上進(jìn)行傳送。對于無線體域網(wǎng)，傳感器節(jié)點數(shù)目較多，節(jié)點能量有限，同時由于人體內(nèi)和人體表面無線環(huán)境的特殊性，發(fā)展高能效高可靠性的路由協(xié)議勢在必行。本論文對網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)及其路由協(xié)議進(jìn)行了詳細(xì)的分析，并主要闡述了無線自組織網(wǎng)絡(luò)及其兩種典型路由協(xié)議AODV與DSDV。 本論文的主要創(chuàng)新點在于依據(jù)人體體征參數(shù)測量的實際情況構(gòu)建了無線體域網(wǎng)的人體結(jié)構(gòu)模型，利用網(wǎng)絡(luò)仿真軟件NS2對Ad Hoc中經(jīng)典的DSDV和AODV路由協(xié)議在無線體域網(wǎng)中的應(yīng)用性能進(jìn)行仿真，對比分析了發(fā)包速率和發(fā)送數(shù)據(jù)包大小的異同對基于AODV和DSDV路由協(xié)議的WBAN網(wǎng)絡(luò)的端到端延遲、丟包率以及吞吐量的影響，為經(jīng)典的路由協(xié)議在WBAN上的應(yīng)用提供了一定的理論依據(jù)和參考價值。
[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.
【學(xué)位授予單位】：煙臺大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN915.04

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