办公无线局域网的设计与实施
设计（论文）题目
办公无线局域网的设计与实施
学 院： 电子与信息工程学院 学生姓名： 曾桂晃 专业班级： 20008级计算机网络3班 学 号： 2008204304 指导教师： 叶红卫
2011年6月1日
办公无线局域网的设计与实施
目 录
摘要.................................................................... 1 Abstract................................................................ 2 第一章 绪论............................................................. 3 第二章 无线局域网概述................................................... 4
2.1无线局域网的优点................................................................................................... 4
2.1.1 灵活性和移动性。....................................................................................... 4 2.1.2 安装便捷。................................................................................................... 4 2.1.3 易于进行网络规划和调整。....................................................................... 4 2.1.4 故障定位容易。........................................................................................... 4 2.1.5 易于扩展。................................................................................................... 5 2.2无线局域网的理论基础........................................................................................... 5
2.2.1 红外线（Infrared Rays，IR）局域网 ......................................................... 5 2.2.2 扩频（Spread Spectrum，SS）局域网 ....................................................... 5 2.2.3 窄带微波局域网........................................................................................... 5 2.3无线局域网的不足之处........................................................................................... 5
2.3.1 性能。........................................................................................................... 6 2.3.2 速率。........................................................................................................... 6 2.3.3 安全性。....................................................................................................... 6
第三章 无线局域网协议标准............................................... 7
3.1 IEEE802.11系列协议 .............................................................................................. 7
3.1.1 802.11a协议 .................................................................................................. 7 3.1.2 802.11b协议 .................................................................................................. 7 3.1.3 802.11g协议 .................................................................................................. 7 3.1.4 其他相关协议............................................................................................... 8 3.2 蓝牙规范（Bluetooth） .......................................................................................... 8 3.3 HomeRF标准 ........................................................................................................... 8 3.4 HyperLAN/2标准 .................................................................................................... 8 3.5 无线局域网标准的比较.......................................................................................... 9 第四章 无线局域网的体系架构............................................ 10
4.1 无线局域网的主要组件........................................................................................ 10
4.1.1 无线网卡..................................................................................................... 10 4.1.2 接入点......................................................................................................... 10 4.2无线局域网的配置方式..........................................................................................11
4.2.1 对等模式......................................................................................................11 4.2.2 基础结构模式..............................................................................................11
第五章 办公室无线局域网需求分析........................................ 12
5.1 现状分析................................................................................................................ 12
5.1.1 物理结构分布............................................................................................. 12 5.2 需求分析................................................................................................................ 13
5.2.1 高带宽网络................................................................................................. 13 5.2.2 网络稳定性................................................................................................. 13
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办公无线局域网的设计与实施
5.2.3 网络先进性................................................................................................. 13
第六章 总体方案设计.................................................... 14
6.1 项目总体方案........................................................................................................ 14 6.2方案设计拓扑图..................................................................................................... 14
6.2.1 中小企业内部无线覆盖示意图................................................................. 15 6.2.2 中小企业外部无线覆盖示意图................................................................. 15 6.2.3 漫游工作..................................................................................................... 16 6.2.4 DWL-1000AP+负载均衡解决方案 ............................................................ 16 6.2.5 AP远程供电POE ....................................................................................... 16 6.3设备清单................................................................................................................. 16 6.4 方案特点................................................................................................................ 17
6.4.1 以可扩展性为设计基础............................................................................. 17 6.4.2 以安全性为设计的核心............................................................................. 17 6.4.3 方便应用为整个系统设计的主导思想..................................................... 17 6.4.4 以经济性为目标......................................................................................... 17
第七章 总体方案实施.................................................... 18
7.1 AP的安装 ............................................................................................................... 18 7.2 客户端设置............................................................................................................ 18 第八章 保证无线安全.................................................... 19
8.1 防范未授权AP ..................................................................................................... 19 8.2 防范非法用户...................................................................................................... 19 8.3 防范ARP攻击 ...................................................................................................... 19 8.4 防范网络带宽滥用................................................................................................ 19 第八章 结束语.......................................................... 21 参考文献............................................................... 22 致谢................................................................... 23
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办公无线局域网的设计与实施
摘要
在人们的生活中，有很多有线局域网无法延伸到的场合，如室外广场、会议室、体育广场等场所，这些地方，人们也希望能够快捷方便地接入网络。与传统的有线网络相比，无线网络不需要在办公室中重新布线，不需要砸墙打孔等施工。无线局域网可以提供全区域、无缝的局域网信号覆盖，实现高速数据接入服务，起来越多的用户体会了随时、随地、移动接入技术带来的好处。本文主要分析无线局域网主流应用技术的演进历程、技术特点基础上，重点对中小企业办公无线局域网解决方案进行分析探讨。
关键字：无线局域网；办公室；技术特点。
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办公无线局域网的设计与实施
Abstract
In our life, there are many places that lineate LAN can not extend. Public Square, meeting room and sport square and so on .people also hope to connect the network quick and convenient in those places. Contrast with traditional lineate LAN, Wireless network no need to rearrange the line. Wireless Local Area Network can offer LAN signal covering with all the area and no chink, bring about high rate data connecting service. More and more user can realize that the good side bring in anytime and anywhere.
Key words: Wireless Local Area Network, office network.
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