目前在移动通信中应用的多址方式有：频分多址（FDMA）、时分多址（TDMA）、码分多址（CDMA）以及它们的混合应用方式等。 蜂窝系统中是以信道来区分通信对象的，一个信道只容纳一个用户进行通话，许多同时通话的用户，互相以信道来区分，这就是多址。

Single Carrier FDMA has been recently considered as a promising uplink transmission Scheme for next generation mobile communications due to its low peak-to-average power ratio. In this project we ...

The DOCSIS 1.0 and 1.1 specifications define the physical-layer RF interfaces for data-over-cable systems. 1 With the success of DOCSIS-based broadband access to homes and businesses, the demand for ...