Optical Wireless Communications: IR for Wireless Connectivity

Roberto Ramirez-Iniguez, Sevia M. Idrus, Ziran Sun

  • 出版商: CRC
  • 出版日期: 2008-04-01
  • 售價: $1,380
  • 貴賓價: 9.8$1,352
  • 語言: 英文
  • 頁數: 376
  • 裝訂: Hardcover
  • ISBN: 0849372097
  • ISBN-13: 9780849372094
  • 相關分類: Wireless-networks
  • 立即出貨 (庫存=1)

商品描述

Over the last three decades, interest in Infrared (IR) technology as a medium to convey information has grown considerably. This is reflected by the increasing number of devices such as laptops, PDAs, and mobile phones that incorporate optical wireless transceivers and also by the increasing number of optical wireless links available for indoor and outdoor use. The popularity of IR is based on the advantages it has over radio including unregulated bandwidth, immunity to radio interference, and inherent security.

Optical Wireless Communications examines some of the most important features of optical wireless communication systems. It considers the benefits and limitations of IR as a medium conveying information wirelessly and compares the advantages and disadvantages of infrared to microwave and other radio systems. It also details the evolution of IR communication systems and describes atmospheric and other types of data transmission limitations.

The book presents design fundamentals of optical concentrators, as well as a review of some of the most important receiver optical front-ends (containing imaging or non-imaging concentrators and optical filters), including an explanation of the different sources of infrared noise and an introduction to eye safety. It also describes optical wireless transmitter and receiver design issues, typical modulation, coding, and multiple access techniques, and introduces IrDA protocols and wireless IR networking.

商品描述(中文翻譯)

在過去三十年中,對於紅外線(IR)技術作為傳遞資訊的媒介的興趣大幅增加。這可從越來越多的設備(如筆記型電腦、個人數位助理和手機)中整合了光學無線收發器,以及室內和室外使用的光學無線連接數量的增加來反映。紅外線的受歡迎程度基於它相對於無線電的優勢,包括無需管制的頻寬、對無線電干擾的免疫性和固有的安全性。

《光學無線通信》探討了光學無線通信系統的一些最重要的特點。它考慮了紅外線作為一種無線傳輸資訊的媒介的優點和限制,並將紅外線與微波和其他無線系統的優缺點進行了比較。它還詳細介紹了紅外線通信系統的演進,並描述了大氣和其他類型的資料傳輸限制。

該書介紹了光學集光器的設計基礎,以及一些最重要的接收器光學前端(包括成像或非成像集光器和光學濾波器)的評估,包括對紅外線噪聲的不同來源的解釋和對眼睛安全性的介紹。它還描述了光學無線發射器和接收器的設計問題,典型的調製、編碼和多址技術,並介紹了IrDA協議和無線紅外線網絡。