OFDM技术分析

Analysis on OFDM Technique

正交频分复用技术由于其频谱利用率高、成本低,并可以提供高速的传输速率等原因越来越受到人们的关注,已经成为无线局域网和无线城域网标准的一部分。分析了OFDM的优点和关键技术,并与CDMA技术进行了对比,说明了OFDM广阔的应用前景。

Orthogonal frequency division multiplexing （OFDM） is an attractive technique. Because of its many excellent advantages such as higher frequency spectrum utilizing rate, lower cost and providing higher transmission rate, OFDM has been a part of the Radio LAN and MAN Standard. This paper discusses the advantages and key technologies of OFDM, compares OFDM with CDMA, and concludes that OFDM has superiority and application prosperity.