Inter-symbol interference mitigation in high-data-rate UWB systems

被引：6
作者：
Lottici, Vincenzo [1 ]
Wu, Lin [2 ]
Tian, Zhi [2 ]
机构：
[1] Univ Pisa, Dept Informat Engn, I-56122 Pisa, Italy
[2] Michigan Technol Univ, Dept Elect & Comp Engn, Houghton, MI 49931 USA
来源：
2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14 | 2007年
关键词：
D O I：
10.1109/ICC.2007.709
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：
The design of ultra-wideband (UWB) impulse radio receivers has to cope with complex signal propagation environments with dense multipath fading, which complicate channel estimation and multipath energy capture. As the date transmission rate increases, additional interference between adjacent symbols arises which may further degrade the detector performance. To address these problems, this paper presents a multi-symbols differential detector that is capable of mitigating inter-symbol interference (ISI) without requiring training or costly channel estimation. A reduced-complexity implementation based on the Viterbi algorithm is proposed, which offers adjustable parameters to balance between performance and complexity. Simulations under typical indoor operating environments demonstrate that the proposed UWB detection scheme is remarkably robust against the effects of both channel noise and ISI.
引用
收藏
页码：4299 / +
页数：2
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