A Blind Channel Estimation Technique for TH-PPM UWB Systems

被引：0
|
作者：
Alizad, A. R. [1 ]
Alipanahi, B. [1 ]
Ghasemi, A. [1 ]
Shiva, M. [1 ]
Jamali, S. H. [1 ]
Nader-Esfahani, S. [1 ]
机构：
[1] Univ Tehran, Sch Elect & Comp Engn, Tehran 14174, Iran
来源：
2006 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-12 | 2006年
关键词：
blind; channel estimation; TH-PPM; UWB;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
As the UWB systems are designed to operate in environments having dense multipath characteristics (i.e., indoor environments) the channel estimation task is much more involved than the conventional systems. In this paper, we present a new blind channel estimation technique for Time-Hopping Pulse-Position-Modulation (TH-PPM) systems. Our proposed method is based on the Pulse Compression (PC) technique introduced in [1]. In spite of its low complexity, the proposed blind channel estimation method outperforms the Non-Data Aided Maximum Likelihood (NDA-ML) technique. Our simulation results show the promising gain of 4 dB around the Bit Error Rate (BER) of 10(-3), compared to NDA-ML. The performance loss, compared to the Perfect Channel Knowledge (PCK) is only 1.5 dB at this BER.
引用
收藏
页码：4717 / 4722
页数：6
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