Robust Weighted Non-Coherent Receiver for Impulse Radio UWB PPM Signals

被引：15

作者：

Khan, Muhammad Gufran ^{[1
]}

Sallberg, Benny ^{[1
]}

Nordberg, Jorgen ^{[1
]}

Claesson, Ingvar ^{[1
]}

机构：

[1] Blekinge Inst Technol, Dept Elect Engn, S-37179 Karlskrona, Sweden

来源：

IEEE COMMUNICATIONS LETTERS | 2011年 / 15卷 / 06期

关键词：

Energy detection; ultra-wideband; pulse-position modulation; adaptive estimation;

D O I：

10.1109/LCOMM.2011.040711.102583

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter proposes an energy detection based robust weight estimation scheme for pulse-position modulated (PPM) impulse radio ultra-wideband (IR-UWB) signals using weighted non-coherent receiver (WNCR). Conventional data-aided WNCR (DA-WNCR) scheme estimates the weighting coefficients, or channel state information (CSI), using a large number of training symbols over time-varying channels. In contrast, the proposed Robust WNCR (R-WNCR) scheme is non-data-aided (NDA), adaptive and robust to channel variations. The proposed R-WNCR estimates the weighting coefficients adaptively based on the received stochastic data, and the weight estimation process is refined using a decision directed approach.

引用

下载

页码：614 / 616

页数：3

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