Analysis and design of pilot-symbol-assisted codes, for the noncoherent AWGN channel, using density evolution

Author

Nuriyev, Rza ; Anastasopoulos, Achilleas

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

3

fYear

2002

fDate

2002

Firstpage

1511

Abstract

Pilot-symbol-assisted transmission of coded data over the block independent noncoherent AWGN channel is considered in this paper. Several iterative receivers are proposed and their performance is analyzed using density evolution. Upper and lower performance bounds are derived for the receiver based on the sum-product algorithm, and the optimal allocation of power to the pilots and coded bits is investigated. It is discovered that the optimal power allocation affects considerably the achievable performance, and depends highly on the phase dynamics. These results are verified by simulating practical codes and iterative receivers.

Keywords

AWGN channels; channel coding; codes; iterative decoding; block independent noncoherent channel; density evolution; iterative receivers; lower performance bounds; noncoherent AWGN channel; optimal power allocation; phase dynamics; pilot-symbol-assisted codes; sum-product algorithm; upper performance bounds; AWGN channels; Additive white noise; Fading; Frequency; Iterative algorithms; Iterative decoding; Oscillators; Parity check codes; Performance analysis; Phase estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2002. ICC 2002. IEEE International Conference on

Print_ISBN

0-7803-7400-2

Type

conf

DOI

10.1109/ICC.2002.997102

Filename

997102