Design of New Training Sequence and Estimation Scheme for Frequency Dependent I/Q Imbalance in MB-OFDM based UWB Systems

被引：0

作者：

Zhou, Jun ^{[1
]}

Liu, Liang ^{[1
]}

Ye, Fan ^{[1
]}

Ren, Junyan ^{[1
]}

机构：

[1] Fudan Univ, State Key Lab ASIC & Syst, Shanghai 201203, Peoples R China

来源：

2009 IEEE 8TH INTERNATIONAL CONFERENCE ON ASIC, VOLS 1 AND 2, PROCEEDINGS | 2009年

关键词：

UWB; I/Q imbalance; phase rotation; diversity gain; IQ IMBALANCE; COMPENSATION; RECEIVERS;

D O I：

10.1109/ASICON.2009.5351630

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：

This paper analyzes the I/Q imbalance effect of direct-conversion receiver in wide-band wireless communication system and sets up frequency-selective I/Q imbalance model for ultra-wide band system. We design a new training sequence based on extra phase rotation and propose an estimation algorithm using diversity message introduced by I/Q imbalance during the demodulation process. Theoretical analysis and simulation results based on typical MB-OFDM based UWB system confirm that the estimation scheme proposed in this paper can achieve 5dB EbNo advantage at PER=8%.

引用

页码：509 / 512

页数：4

共 13 条

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