Uplink equivalent space - time multiuser detection for multicarrier code - division multiple access systems 系统盲空时信道估计及多用户检测
This paper discusses the work that we have done about the ( cd ) 2ma ( chaotic digital code - division multiple access ) communication system , whose performance is desirable 本文论述了我们在研究性能优良的混沌数字码分多址通信系统方面所做的工作。
Spread spectrum communication takes an important part in military communication and in civil communication . especially in recent years , code - division multiple access ( cdma ) system based on spread spectrum communication is widely used in mobile communication 扩频通信在军事通信和民用通信中都具有重要的意义,特别是近几年来,以扩频通信为基础的cdma通信系统在移动通信中得以广泛应用。
On the other hand , cdma ( code - division multiple access ) communication system has been widely considered as the mainstream of 3g communication system , because it has the good qualities such as high utilization ratio of frequency band , low transmission power , powerful anti - multiple path falling and flexible capacity 另一方面, cdma通信系统以其高频谱利用率、低发射功率、强抗多径衰落特性、软容量等优点,已被广泛认为是第三代移动通信系统的主流。