A Novel High Data Rate Prerake UWB System Using Orthogonal Codes and Chip-Interleaving

被引：0
|
作者：
Cao, Wei [1 ]
Zhang, Qi [2 ]
Nallanathan, A. [3 ]
Garg, H. K. [1 ]
机构：
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore, Singapore
[2] Chinese Acad Sci, Shenzhen Inst Adv Technol, Dept Integrated Elect, Shenzhen, Peoples R China
[3] King s Coll London, Div Engn, London, England
来源：
2009 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-8 | 2009年
关键词：
MULTIPLE-ACCESS; IMPULSE RADIO;
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：
A novel signal structure is designed for a high data rate (HDR) Prerake UWB system, which uses orthogonal codes and chip-interleaving to suppress the inter-chip interference (ICI). On one hand, high data rate is achieved via superposition of symbols. On the other hand, the symbols are coded using the Walsh-Hadamard codes and interleaved on the chip level, which largely eliminates the ICI. The BER performance of the system is analyzed under imperfect channel estimation. Numerical results show that the HDR Prerake UWB system using the Walsh-Hadamard codes and chip-interleaving outperforms the conventional HDR Prerake UWB system using the random DS codes without ICI suppression under both perfect and imperfect channel estimation. Effect of the length of Walsh-Hadamard codes on the system performance is also discussed in detail.
引用
收藏
页码：3594 / +
页数：2
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