基于竞争MAC协议的无线传感器网络仿真研究
关键词 无线传感器网络 基于竞争 S-MAC 协议 仿真平台搭建
毕业论文设计外文摘要
Title The Study on The Simulation of Wireless Sensor Network MAC Protocol Whitch Based on Competition.
Abstract
Wireless sensor network applied to an integrated intelligent information system.By combining sensing technology with wireless communication technology,wireless sensor networks provide a new effective method for human interaction and the objective physical world.Therefore,while more than two nodes transmit signal at the same time in the same communication area,it will form a mutual interference, resulting in unsuccessful transmission.In order to make numbers of sensor nodes share wireless channel resources effectively,avoiding conflict is one of the key issues in wireless sensor networks,which has important impact on the efficient using of wireless resources,network throughput and delay.This article describes the primary problem and pending solution of key technology for MAC protocol.Then we list some typical MAC protocol based on contention.Based on the analysis of several typical MAC protocols of wireless sensor networks,this thesis studies the classic S-MAC protocol which is based on competition.By inheriting the excellent idea of S-MAC protocol,this thesis improves it for the shortage.At last,I established a simulation platform,compare the inproved agreement with the initial one and analysis them all.
Keyword Wireless sensor network based on protocol S-MAC simulation platform
目 次
1 绪论 1
1.1 研究的目的和意义 1
1.2 现今基于竞争的传感器网络 MAC协议研究的情况2
1.3 主要工作及论文的组织结构 3
1.4 本章小结 3
2 无线传感器网络的概述 4
2.1 无线传感器网络的概念4
2.2 无线传感器网络的体系结构 4
2.3 无线传感器网络所具备的主要优势 7
2.4 无线传感器网络的应用8
2.5 本章小结 8
3 无线传感器网络MAC协议的研究 10
3.1 无线传感器网络中MAC协议的概述10
3.2 无线传感器网络中可能能量浪费的几个重要原因 10
3.3 无线传感器网络MAC协议的分类 11
3.4 基于竞争的无线传感器网络MAC协议12
3.5 本章小结 14
4 无线传感器网络S-MAC协议的研究 15
4.1 S-MAC协议的概述15
4.2 S-MAC 协议所采用的机制 15
4.3 S-MAC协议中存在的主要问题17
4.4 本章小结 19
5 无线传感器网络S-MAC协议的仿真与改进20
5.1 仿真环境的搭建 20
5.2 无线传感器网络S-MAC协议的仿真23
5.3 无线传感器网络S-MAC协议中的算法存在的问题及改进 28