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MC-CDMA, Major Technology of Beyond 3G Systems

机译:MC-CDMA,超越3G系统的主要技术

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摘要

As very important key technologies of beyond 3G systems, MC-CDMA is the method combined OFDM and CDMA has being received more and more attention recently, because it can provide many advantages, such as larger capacity, high data rate, frequency and time diversity, etc. Multifarious MC-CDMA methods are investigated. In this paper, an new M-ary MC-CDMA method is proposed for transmitting high date rate and employing radio software technique after we investigate and review advanced OFDM, CDMA and MC-CDMA methods. M-ary MC-CDMA proposed is to divide multi parallel branches, each branch is modulated by high rate data using M-ary OFDM and is left each other by CDMA. Then the different user can use different number of parallel branches to transmit multimedia data. Simulation results show that M-ary MC-CDMA method proposed has better performance and high capacity, smart process ability of different multimedia service and resource management.
机译:作为超越3G系统的非常重要的关键技术,MC-CDMA是将OFDM和CDMA相结合的方法,由于它具有更大的容量,更高的数据速率,频率和时间分集等诸多优点,因此近年来受到越来越多的关注。研究了多种MC-CDMA方法。在研究和回顾了先进的OFDM,CDMA和MC-CDMA方法之后,本文提出了一种新的Mary MC-CDMA方法来传输高数据率并采用无线电软件技术。提出的Mary MC-CDMA是划分多个并行分支,每个分支使用Mary OFDM由高速率数据调制,并由CDMA相互保留。然后,不同的用户可以使用不同数量的并行分支来传输多媒体数据。仿真结果表明,所提出的Mary MC-CDMA方法具有更好的性能,更高的容量,不同多媒体业务和资源管理的智能处理能力。

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