摘要
正交频分多址(OFDMA)是一种基于正交频分复用(OFDM)原理的多址技术,具有很高的带宽利用率,同时汇集了OFDM、跳频及时分多址(TDMA)技术的诸多优点,在无需使用均衡器的情况下,可有效地克服码间干扰。与传统的直扩CDMA(DS-CDMA)或多址CDMA(MC-CDMA)相比,OFDMA提供的容量更大。
Orthogonal frequency division multiplex access(OFDMA)is a multiple access technology based on OFDM,which has a high bandwidth availability.At the same time,OFDMA integrates their advantages of OFDM,frequency-hopping and TDMA.Without using equalizers,it can combat ISI effectively.OFDMA can provide more capacity than conventional DS-CDMA or MC-CDMA.
出处
《电信快报》
2003年第3期26-27,34,共3页
Telecommunications Information
