Design of optimal complex spreading codes for DS-CDMA using an evolutionary approach

被引：0
|
作者：
Natarajan, B [1 ]
Das, S [1 ]
Stevens, D [1 ]
机构：
[1] Kansas State Univ, Dept Elect & Comp Engn, Manhattan, KS 66506 USA
来源：
GLOBECOM '04: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-6 | 2004年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a novel evolutionary approach to spreading code design in DS-CDMA. Specifically, a multiobjective evolutionary algorithm is used to generate complex spreading sequences that are optimized with respect to average mean-square cross and/or auto correlation properties. A theoretical model is developed in order to demonstrate the optimality of the generated codes. The proposed algorithm enables spreading code design with no constraints on the code length. Furthermore, it is possible to generate K greater than or equal to N codes of length N with very little cost in correlation properties. This results in significant capacity enhancement in DS-CDMA systems.
引用
收藏
页码：3882 / 3886
页数：5
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