基于可变处理增益正交码的多速率传输

A Multi-rate Transmission Based on Orthogonal Multi-processing Gain Code

介绍一种基于可变处理增益正交码的多速率传输系统,它是在DS-CDMA系统的下行链路中引入可变处理增益正交码,从而可以保证传输不同速率数据的用户之间相互正交性,系统中移动台只需一个RAKE合并器。对在多用户和频率选择性瑞利衰落环境下的下行链路的误比特率性能进行了仿真,其结果表明系统是可行的。

A multi -rate transmission system based on orthogonal multi -processing gain code is introduced .Orthogonal multi -processing gain code used in t he down link of the DS -CDMA system wil l support the orthognal characteris tics between the channels of multi -rate transmis sion.In the system mobile stations n eed only a RAKE amalgamator .The simu lation of error bit rate performance for multi -chan nel and frequency -selective Rayleigh fading is carried out ,and the simulation results show that the system is efficient.