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

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.