Title :
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
fDate :
10/1/2008 12:00:00 AM
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;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2008.080957
