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基于Contiki系統(tǒng)的無線傳感器網(wǎng)絡(luò)MAC層協(xié)議研究及實現(xiàn)

發(fā)布時間:2018-04-17 21:08

  本文選題:無線傳感器網(wǎng)絡(luò) + Contiki系統(tǒng) ; 參考:《北京郵電大學》2015年碩士論文


【摘要】:無線傳感器網(wǎng)絡(luò)是一種由空間上分布的多個傳感器節(jié)點通過無信-方式所構(gòu)成的自組織網(wǎng)絡(luò),通過選擇所適用的各類傳感器可運國民生產(chǎn)和人們生活的各個方面。其中,MAC (Medium Access (?)Rol)協(xié)議是無線傳感器網(wǎng)絡(luò)中不可或缺的一部分,它保證了傳感網(wǎng)絡(luò)通信的高效性。研究人員從各個方面提出了針對不同傳感器網(wǎng)的傳統(tǒng)MAC協(xié)議,它們主要分為競爭類、固定分配類和復(fù)合類三而叮傳統(tǒng)的MAC協(xié)議為保證網(wǎng)絡(luò)傳輸?shù)目煽啃远枰^高的(?),因此本文實現(xiàn)了基于時間同步機制的低功耗TSMP(Time (?)nronized Mesh Protocol)協(xié)議在輕量級操作系統(tǒng)上的移植。在選用TSMP協(xié)議的操作系統(tǒng)時,由于Contiki多任務(wù)操作系統(tǒng)具有很(?)植性并適于進行傳感器協(xié)議仿真,因此本文選擇Contiki系統(tǒng)(?)嵌的網(wǎng)絡(luò)協(xié)議棧作為研究平臺。本文闡述了Contiki系統(tǒng)的組構(gòu)和工作原理,研究和分析了Contiki系統(tǒng)各層協(xié)議棧的實現(xiàn)及系,,在此基礎(chǔ)上借助對典型傳統(tǒng)MAC協(xié)議以及Contiki系統(tǒng)上協(xié)議的機制和性能對比,仔細研究了TSMP協(xié)議的主要功能,Contiki操作系統(tǒng)上完成了基于時間同步機制的TSMP協(xié)議的設(shè)實現(xiàn)與仿真。
[Abstract]:Wireless sensor network (WSN) is a kind of self-organizing network which is composed of multi-sensor nodes distributed in space through non-credit-mode. It can transport all aspects of national production and people's life by selecting suitable kinds of sensors.The medium Access Roll protocol is an indispensable part of wireless sensor networks, which ensures the high efficiency of communication in wireless sensor networks.Researchers have proposed traditional MAC protocols for different sensor networks from various aspects, which are mainly divided into competing classes.In order to ensure the reliability of network transmission, the traditional MAC protocols with fixed allocation class and compound class often need high security. Therefore, this paper implements the transplantation of low-power TSMP(Time protocol based on time synchronization mechanism on the lightweight operating system.When choosing the operating system of TSMP protocol, the Contiki multitasking operating system has many advantages.It is suitable for sensor protocol simulation, so Contiki system is chosen in this paper.The embedded network protocol stack is used as the research platform.This paper expounds the fabric and working principle of Contiki system, studies and analyzes the implementation and system of each layer protocol stack of Contiki system, and based on this, compares the mechanism and performance of typical traditional MAC protocol and Contiki system protocol.The implementation and simulation of the TSMP protocol based on the time synchronization mechanism on the Contiki operating system, which is the main function of the TSMP protocol, is studied in detail.
【學位授予單位】:北京郵電大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TP212.9;TN929.5

【參考文獻】

相關(guān)期刊論文 前1條

1 丁英強;孫雨耕;李婷雪;;基于時分頻分的無線傳感器分簇網(wǎng)絡(luò)MAC層協(xié)議[J];天津大學學報;2008年08期



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