A statistical-mechanics approach to analyzing effect of imperfect channel state information on multiuser channel capacity

Author

Wang, H.S. ; Zeng, G.H.

Author_Institution

Shanghai Jiaotong Univ., Shanghai

fYear

2007

fDate

15-18 Dec. 2007

Firstpage

906

Lastpage

910

Abstract

In this paper, the effect of imperfect channel state information at the receiver, which is caused by noise and other interference, on the multi-access channel capacity is analyzed by means of a statistical-mechanical approach. Replica analysis focus on analytically studying how the minimum mean square error (MMSE) channel estimation error appears in the multiuser channel capacity formula and mathematical expressions are derived. At the same time, numerical simulation results are demonstrated to validate the replica analysis. The simulation results show how the system parameters, such as channel estimation error, system load and signal-to-noise ratio, effect on the channel capacity.

Keywords

channel capacity; channel estimation; least mean squares methods; multiuser channels; statistical analysis; channel estimation; imperfect channel state information; mathematical expression; minimum mean square error method; multiaccess channel capacity; multiuser channel capacity; replica analysis; signal-to-noise ratio; statistical mechanics; Cause effect analysis; Channel capacity; Channel estimation; Channel state information; Information analysis; Interference; Mean square error methods; Multiuser channels; Numerical simulation; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2007 IEEE International Symposium on

Conference_Location

Giza

Print_ISBN

978-1-4244-1835-0

Electronic_ISBN

978-1-4244-1835-0

Type

conf

DOI

10.1109/ISSPIT.2007.4458001

Filename

4458001