On the error exponent for memoryless flat fading channels with channel-state-information feedback

Author

Ahmed, Walid K M ; McLane, Peter J.

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

3

Issue

2

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

49

Lastpage

51

Abstract

We derive the random coding error exponent for the time-independent flat fading channel with perfect knowledge of the channel state information (CSI) at both the receiver and the transmitter. That is, the CSI is feedback from the receiver to the transmitter. In such a situation, the transmitter is capable of optimizing the power allocation of the transmitted signal according to the fading state in order to obtain, for our case, the best error exponent. The power scheme obtained here is different from the water-pouring one, which is known to maximize the channel capacity.

Keywords

Rayleigh channels; channel capacity; channel coding; coding errors; feedback; memoryless systems; random codes; Rayleigh fading; channel capacity; channel coding; channel state information feedback; fading state; memoryless flat fading channels; perfect knowledge; power allocation; random coding error exponent; receiver; time-independent flat fading channel; transmitter; AWGN; Additive white noise; Channel capacity; Channel state information; Fading; Maximum likelihood decoding; Performance loss; State feedback; Transmitters;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/4234.749359

Filename

749359