Asynchronous Multi-Carrier DS-CDMA with UCHT-Based Complex Spreading Sequences

被引：0
|
作者：
Gu, Zhenghui [1 ]
Xie, Shoulie [1 ]
Rahardja, Susanto [1 ]
机构：
[1] Inst Infocomm Res, Singapore 119613, Singapore
来源：
2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2006年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Quadriphase complex sequences based on unified complex Hadamard transform (UCHT) are orthogonal ann easy to generate [6]. There are sixty-four sets in UCHT-based sequences. Some sets of UCHT sequences provide better autocorrelation properties than orthogonal walsh-Hadamard (WH) sequences. In this paper, UCHT-based sequences are applied as spreading sequences in an asynchronous MC-DS-CDMA system. The bit-error rate (BER) performance of the underlying system with complex spreading sequences is investigated and simulation results show that the asynchronous MC-DS-CDMA system spread by UCHT sequences outperforms that spread by WH sequences in frequency, selective fading channel.
引用
收藏
页码：1349 / 1352
页数：4
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