双曲线跳频序列在异步CDMA中的应用  

Application of the hyperbolic code to the asynchronous CDMA system

作　　者：强刚[1] 刘增基[1] 刘乃安[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2002年第4期547-550,共4页Journal of Xidian University

摘　　要：在分析异步CDMA系统中的码间干扰问题的基础上 ,指出了仅从直接扩频序列码着手很难减小多址干扰 ,提出了DS/FH混合方式的解决方案 .其主要思想是合理设计双曲线跳频序列以减小直接扩频序列码间的击中率 。By analyzing asynchronous CDMA systems, we find that it would be difficult to reduce Multi access Interference if only direct sequence spreading codes were considered. This paper presents a hybrid DS/FH method, in which the hyperbolic code is chosen for frequency hopping spreading to reduce the hit probability among different direct sequence spreading codes, so as to reduce MAI.

关 键 词：双曲线跳频序列 DS/FH 双曲线码 异步CDMA 码间干扰 移动通信 

分 类 号：TN929.533[电子电信—通信与信息系统]