Distributed Generalized Low-Density Codes for Wireless Relay Networks

Author

Han, Changcai ; Wu, Weiling

Author_Institution

Key Lab. of Inf. Process. & Intell. Technol., Beijing Univ. of Posts & Telecommun., Beijing

Volume

12

Issue

10

fYear

2008

fDate

10/1/2008 12:00:00 AM

Firstpage

724

Lastpage

726

Abstract

Distributed generalized low-density (GLD) codes are proposed for cooperative networks with multiple relays. Specifically, every relay can decode and forward one or several constituent codes of the GLD code to cooperatively construct a distributed GLD code using the partial error-detecting and error-correcting capabilities of the GLD code. The scheme can be flexibly adjusted to the variation of the relay number and work effectively under both perfect and imperfect source-relay channels verified by simulations.

Keywords

channel coding; decoding; error correction codes; error detection codes; radio networks; cooperative networks; distributed generalized low-density codes; error-correcting capabilities; multiple relays; partial error-detection; relay decoding; source-relay channels; wireless relay networks; Binary phase shift keying; Degradation; Digital relays; Fading; Frame relay; Iterative decoding; Parity check codes; Sparse matrices; Turbo codes; Wireless networks; Distributed generalized low-density codes; cooperative communications; relay networks;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2008.080957

Filename

4640933