A useful lemma for capacity analysis of fading interference channels

Author

Hamdi, Khairi Ashour

Author_Institution

Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK

Volume

58

Issue

2

fYear

2010

fDate

2/1/2010 12:00:00 AM

Firstpage

411

Lastpage

416

Abstract

This paper presents a simple new expression for the exact evaluation of averages of the form E [ln (1+x₁+...x_N/y₁+...+y_M+1)], where x₁,..., x_N, y₁..., y_M are arbitrary non-negative random variables, in terms of the joint moment generating functions of these random variables. Application examples are given for the ergodic capacity evaluation of some multiuser wireless communication systems which are difficult to solve by the known classical methods.

Keywords

channel capacity; fading channels; multi-access systems; radiofrequency interference; random processes; capacity analysis; ergodic capacity evaluation; fading interference channel; joint moment generating functions; multiuser wireless communication system; nonnegative random variable; Closed-form solution; Diversity reception; Fading; Information rates; Interchannel interference; Interference channels; Multiuser channels; Random variables; Rayleigh channels; Wireless communication; Diversity methods, fading channels, information rates; interference, multiuser channels;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2010.02.080117

Filename

5407601