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本文介绍了一种新型的多址方式—正交频分多址 (OFDMA)。我们在阐述OFDMA基本思想的同时 ,着重分析了其特点并比较了一种实用的OFDM多址技术—OFDM /CDMA与另一种常用的多址方式—DS -CDMA的系统性能。
This article describes a new type of multiple access - Orthogonal Frequency Division Multiple Access (OFDMA). While elaborating the basic idea of OFDMA, we emphatically analyzed its characteristics and compared the performance of a practical OFDM multiple access technology - OFDM / CDMA with another commonly used multiple access mode - DS-CDMA.