wlan室內信號分布系統

電子信息工程論文編號:DZXX081  論文字數:12861,頁數:35

目錄

摘要 I
ABSTRACT II
第1章 引言 1
1.1 背景 1
1.2 研究內容 4
第2章 WLAN的基本原理 5
2.1 WLAN的定義 5
2.2WLAN的特點 5
2.3WLAN的技術標準 5
2.3.1 802.11b物理層相關技術 5
2.3.2 802.11g物理層相關技術 6
2.3.3信道頻率的劃分 6
2.4 WLAN與Wi-Fi的區別 6
2.5 WLAN 的組網方式 7
2.6 WLAN的應用方式 7
2.6.1無線網橋 7
2.6.2無線覆蓋 7
第3章 WLAN室內信號覆蓋組成 9
3.1 室內覆蓋的定義 9
3.2 天饋系統分布 9
3.2.1 天饋系統的定義 9
3.2.2 天饋系統的組成 9
3.2.3其它無源器件介紹 10
 3.3 AP相關 11
3.3.1 AP的定義 11
3.3.2 AP與無線路由器的區別 12
3.3.3AP的工作頻段 12
3.3.4AP的組網方式 12
3.3.5 AP的安裝要求 14
3.3.6 AP的數據配置 15
第4章 WLAN室內信號分布方案設計 19
4.1天饋走線規范與安裝要求 19
4.2天線口功率 20
4.2.1 天線功率設置的要求與意義 20
4.2.2 功率調整的方法 21
 4.3方案設計 22
第5章 結束語 27
致 謝 28
參考文獻 29
附錄1 勘查表 30

摘要

 無線局域網WLAN，顧名思義是一種借助無線技術取代以往有線布線方式構成局域網的新手段，可提供傳統有線局域網的所有功能。它是計算機網絡與無線通信技術相結合的產物，系統用無線接人的一個子集．但原則上與藍牙有類似性．覆蓋無線個人域(WPAN)范疇,與藍牙相比，它能支持較高傳輸速率(2~54Mbit／s，甚至更高)，利用射頻無線電或紅外線，實現固定、半移動網絡終端對Intemet網絡進行較遠距離的高速連接訪問。因此，原則上它與速率較低的藍牙技術有不同市場定位，相互支持補充，構成一種完整有效的WLAN無線接入。無線網絡在遠程接入，移動接入和臨時接入中都擁有無與倫比的巨大優勢，隨著無線網絡設備價格的平民化，無線網絡的實際應用也就越來越多。
 本文介紹了如何構建WLAN室內信號分布系統以及需要使用的相關軟件及器件。AutoCAD用于繪制需覆蓋區域的平面圖，Visio用于繪制該點的系統圖，這樣的設計才完整、立體，兩圖缺一不可。需用的器件主要有AP、交換機等有源設備以及由饋線、天線、功分器、耦合器等無源器件組成的天饋系統。

關鍵詞：WLAN，天饋系統，AP，室內分布系統

ABSTRACT

 Wireless LAN,As the name suggests is a wireless technology replaces the use of cable wiring methods constitute a new means of LAN that can Provides all the features of the traditional wired LAN. It is the computer network and wireless communication technology product of the combination,system with a subset of access. In principle, there are similarities with the Bluetooth. Compared with the Bluetooth, It can support a higher transmission rate(2~54Mbit／s Or more). Use radio frequency radio or infrared achieve a fixed, semi-mobile network terminal on the Intemet network high-speed connection to access more remote. Therefore, in principle, with lower rates of Bluetooth technology has different market positioning, complement and support each other to form a complete and effective WLAN Wireless Access. Wireless network in remote access mobile access and temporary access in all the great advantages of unmatched, With the wireless network equipment prices for common people, the practical application of the wireless network also more and more.
    This article describes how to build a WLAN indoor signal distribution systems and the need to use the related software and device. AutoCAD for mapping coverage of the plan required, Visio for drawing the point system plan, This design was complete, three-dimensional, two plans are essential. There are devices for use by AP, switches and other active equipment as well as by the line, antenna, power divider, coupler composed of passive components such as antenna and feeding system.
Keywords: WLAN, system of Antenna, AP,. Indoor Distribution system