基于Contiki系统的无线传感器网络MAC层协议研究及实现

发布时间：2018-04-17 21:08

本文选题：无线传感器网络 + Contiki系统　；参考：《北京邮电大学》2015年硕士论文

【摘要】：无线传感器网络是一种由空间上分布的多个传感器节点通过无信-方式所构成的自组织网络,通过选择所适用的各类传感器可运国民生产和人们生活的各个方面。其中,MAC (Medium Access (?)Rol)协议是无线传感器网络中不可或缺的一部分,它保证了传感网络通信的高效性。研究人员从各个方面提出了针对不同传感器网的传统MAC协议,它们主要分为竞争类、固定分配类和复合类三而叮传统的MAC协议为保证网络传输的可靠性而往往需要较高的(?)，因此本文实现了基于时间同步机制的低功耗TSMP(Time (?)nronized Mesh Protocol)协议在轻量级操作系统上的移植。在选用TSMP协议的操作系统时,由于Contiki多任务操作系统具有很(?)植性并适于进行传感器协议仿真,因此本文选择Contiki系统(?)嵌的网络协议栈作为研究平台。本文阐述了Contiki系统的组构和工作原理,研究和分析了Contiki系统各层协议栈的实现及系，，在此基础上借助对典型传统MAC协议以及Contiki系统上协议的机制和性能对比,仔细研究了TSMP协议的主要功能,Contiki操作系统上完成了基于时间同步机制的TSMP协议的设实现与仿真。
[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.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP212.9;TN929.5

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