Impact of imperfect pilot-symbol-aided channel estimation on TCM performance over Rayleigh fading channels

被引：0

作者：

Bäro, S ^{[1
]}

Håkegård, JE ^{[1
]}

Boucheret, ML ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Aachen Inst Technol, Inst Elekt Nachrichtentech, D-52056 Aachen, Germany

来源：

SIGNAL PROCESSING | 2000年 / 80卷 / 07期

关键词：

TCM; channel estimation; performance evaluation;

D O I：

10.1016/S0165-1684(00)00044-X

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：

In this paper, we present a simple method of approximating BER performance of a mobile communication system using trellis-coded modulation and realistic and thus imperfect channel estimation. We consider the case of pilot-symbol-aided modulation (PSAM) by interpolation on flat Rayleigh fading channels. Different methods of PSAM are considered and compared on the realistic Bessel channel model as well as on a simplified Butterworth model. An error floor at high SNR is identified as the most important degradation from the case of ideal channel estimation. Error floor values, necessary for system dimensioning, can easily be approximated using a modified approach to exact pairwise error probability (PEP) calculation. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1385 / 1392

页数：8

共 10 条

[1]

[Anonymous], CODED MODULATION TEC

[2]

BARO S, 1997, THESIS RWTH AACHEN

[3]

Biglieri E., 1991, Introduction to Trellis-Coded Modulation with Applications, V1st

[4] AN ANALYSIS OF PILOT SYMBOL ASSISTED MODULATION FOR RAYLEIGH FADING CHANNELS [J].