Uplink equivalent space - time multiuser detection for multicarrier code - division multiple access systems 系統(tǒng)盲空時(shí)信道估計(jì)及多用戶檢測
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 本文論述了我們在研究性能優(yōu)良的混沌數(shù)字碼分多址通信系統(tǒng)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 擴(kuò)頻通信在軍事通信和民用通信中都具有重要的意義,特別是近幾年來,以擴(kuò)頻通信為基礎(chǔ)的cdma通信系統(tǒng)在移動(dòng)通信中得以廣泛應(yīng)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通信系統(tǒng)以其高頻譜利用率、低發(fā)射功率、強(qiáng)抗多徑衰落特性、軟容量等優(yōu)點(diǎn),已被廣泛認(rèn)為是第三代移動(dòng)通信系統(tǒng)的主流。