设计简介
摘 要
近些年来随着个人数据通信的发展,功能强大的便携式数据终端以及多媒体终端得到了广泛的应用。为了实现使用户能够在任何时间、任何地点均能实现数据通信的目标,要求传统的计算机网络由有线向无线、由固定向移动、由单一业务向多媒体发展,由此无线局域网技术得到了快速的发展。
本文从介绍无线局域网的发展现状及其意义出发,具体阐述了无线局域网的的IEEE802.11标准,设备安装及设备属性,信道划分等相关基础知识。通过对某商厦无线局域网的需求进行分析以及对无线局域网的拓扑结构与原理等方面的研究,制定出WLAN室内信号覆盖系统的设计流程,并最终提出某商厦无线局域网建设的整体解决方案,以实现对某商厦进行整体的WLAN无缝覆盖。
关键词:个人通信;无线局域网;网络拓扑结构;室内信号覆盖系统;
The wireless local area network system engineering construction of a commercial building
ABSRACT
In recent years, powerful portable data terminal and multimedia terminal get a wide range of applications with the development of the personal data communication. In order to realize the user can achieve the goal of data communication in any time and any place,requirements of traditional computer network of wired to wireless, fixed to mobile, a single business to multimedia development are put forward. Thus the wireless local area network technology obtained fast development.
This paper begins from the introduction of meaning of the wireless local area network and its development situation at present . Expound some basic knowledges about standards of 802.11,equipment installation,equipment attribute,channel division,and so on. Through the study of the demand for an office building wireless LAN analysis, and wireless LAN topology and principle, to develop a design process, and ultimately raised the overall construction solutions of a commercial building 's wireless LAN , in order to achieve a commercial building's WLAN overall seamless coverage.
Keywords: personal communication; wireless LAN; network topology structure; indoor signal coverage system;
目 录
摘 要 III
ABSRACT IV
1 前 言
1.1 无线局域网概述 1
1.2 无线局域网的优缺点 1
1.2.1 WLAN的优势 1
1.2.2 WLAN的局限性 2
2 WLAN的主要标准
2.1 IEEE802.11(802.11协议) 3
2.1.2 802.11各协议对比 5
2.2 Home RF(家庭无线射频) 5
2.3 蓝牙 6
3 WLAN网络系统结构及其组成
3.1 中国移动WLAN系统的网络结构 7
3.2 WLAN网络系统组成及功能 7
4 WLAN的频段及WLAN的关键技术
4.1 WLAN的频段 10
4.2 WLAN的关键技术 10
4.2.1 载波监听/冲突避免机制(CSMA/CA) 10
4.2.2 MIMO技术 11
4.2.3 双频覆盖技术 11
5 WLAN常用器件及其属性
5.1 合路器 12
5.2 功分器 13
5.3 耦合器 14
5.4 匹配负载 14
5.5天线 15
6 工程建设情况
6.1覆盖范围及覆盖方式 18
6.2用户需求分析 18
6.3 无线环境的勘查阶段 19
6.3.1 确定覆盖范围 19
6.3.2 流量及负载 19
6.3.3 需求及应用 19
6.4 无线站点规划阶段 20
6.4.1 AP覆盖范围和密度 20
6.4.2 频段与信道的选择 21
6.4.3 无线设备的选型阶段 22
7 工程安装测试方案
7.1 AP的安装安全注意事项 24
7.2 供电方式——采用POE供电方式 24
7.3 器件安装说明 25
7.4 系统测试 26
7.4.1信号强度测试 26
7.5 覆盖效果预测 26
7.5.1方案合理性分析 26
7.5.2覆盖效果预测 27
8 结 论
谢 辞 29
参考文献 30
近些年来随着个人数据通信的发展,功能强大的便携式数据终端以及多媒体终端得到了广泛的应用。为了实现使用户能够在任何时间、任何地点均能实现数据通信的目标,要求传统的计算机网络由有线向无线、由固定向移动、由单一业务向多媒体发展,由此无线局域网技术得到了快速的发展。
本文从介绍无线局域网的发展现状及其意义出发,具体阐述了无线局域网的的IEEE802.11标准,设备安装及设备属性,信道划分等相关基础知识。通过对某商厦无线局域网的需求进行分析以及对无线局域网的拓扑结构与原理等方面的研究,制定出WLAN室内信号覆盖系统的设计流程,并最终提出某商厦无线局域网建设的整体解决方案,以实现对某商厦进行整体的WLAN无缝覆盖。
关键词:个人通信;无线局域网;网络拓扑结构;室内信号覆盖系统;
The wireless local area network system engineering construction of a commercial building
ABSRACT
In recent years, powerful portable data terminal and multimedia terminal get a wide range of applications with the development of the personal data communication. In order to realize the user can achieve the goal of data communication in any time and any place,requirements of traditional computer network of wired to wireless, fixed to mobile, a single business to multimedia development are put forward. Thus the wireless local area network technology obtained fast development.
This paper begins from the introduction of meaning of the wireless local area network and its development situation at present . Expound some basic knowledges about standards of 802.11,equipment installation,equipment attribute,channel division,and so on. Through the study of the demand for an office building wireless LAN analysis, and wireless LAN topology and principle, to develop a design process, and ultimately raised the overall construction solutions of a commercial building 's wireless LAN , in order to achieve a commercial building's WLAN overall seamless coverage.
Keywords: personal communication; wireless LAN; network topology structure; indoor signal coverage system;
目 录
摘 要 III
ABSRACT IV
1 前 言
1.1 无线局域网概述 1
1.2 无线局域网的优缺点 1
1.2.1 WLAN的优势 1
1.2.2 WLAN的局限性 2
2 WLAN的主要标准
2.1 IEEE802.11(802.11协议) 3
2.1.2 802.11各协议对比 5
2.2 Home RF(家庭无线射频) 5
2.3 蓝牙 6
3 WLAN网络系统结构及其组成
3.1 中国移动WLAN系统的网络结构 7
3.2 WLAN网络系统组成及功能 7
4 WLAN的频段及WLAN的关键技术
4.1 WLAN的频段 10
4.2 WLAN的关键技术 10
4.2.1 载波监听/冲突避免机制(CSMA/CA) 10
4.2.2 MIMO技术 11
4.2.3 双频覆盖技术 11
5 WLAN常用器件及其属性
5.1 合路器 12
5.2 功分器 13
5.3 耦合器 14
5.4 匹配负载 14
5.5天线 15
6 工程建设情况
6.1覆盖范围及覆盖方式 18
6.2用户需求分析 18
6.3 无线环境的勘查阶段 19
6.3.1 确定覆盖范围 19
6.3.2 流量及负载 19
6.3.3 需求及应用 19
6.4 无线站点规划阶段 20
6.4.1 AP覆盖范围和密度 20
6.4.2 频段与信道的选择 21
6.4.3 无线设备的选型阶段 22
7 工程安装测试方案
7.1 AP的安装安全注意事项 24
7.2 供电方式——采用POE供电方式 24
7.3 器件安装说明 25
7.4 系统测试 26
7.4.1信号强度测试 26
7.5 覆盖效果预测 26
7.5.1方案合理性分析 26
7.5.2覆盖效果预测 27
8 结 论
谢 辞 29
参考文献 30