An accurate closed-form approximation of the average probability of error over a log-normal fading channel

被引：23

作者：

Heliot, Fabien ^{[1
]}

Ghavami, Mohammad ^{[2
]}

Nakhai, Mohammad Reza ^{[3
]}

机构：

[1] Univ Surrey, Ctr Commun Syst Res, Guildford GU2 7HX, Surrey, England

[2] Kings Coll London, UWB Commun Grp, Div Engn, London WC2R 2LS, England

[3] Kings Coll London, Div Engn, Ctr Telecommun Res, London WC2R 2LS, England

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2008年 / 7卷 / 05期

关键词：

log-normal distributions; communication channels; probability; error analysis; approximation methods; closed-form expression; Lambert W function;

D O I：

10.1109/TWC.2008.061019

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 log-normal probability distribution is commonly used in wireless communications to model the shadowing and more recently the small scale fading for indoor ultra wide-band communications. In this paper, an accurate closed-form approximation of the average probability of error over a log-normal fading channel is derived for various constellation types and sizes. This expression can be used to evaluate and compare easily the symbol-error performance of communication systems over a log-normal fading channel.

引用

页码：1495 / 1500

页数：6

共 18 条

[1]

Abramowitz M., 1974, Handbook of Mathematical Functions-With Formulas, Graphs, and Mathematical Tables

[2]

[Anonymous], 2004, ULTRA WIDEBAND SIGNA

[3] Estimating the distribution of a sum of independent lognormal random variables [J].