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Title: Rate-compatible root-protograph LDPC codes for quasi-static fading relay channels
Authors: Fang, Y
Guan, YL
Bi, G
Wang, L
Lau, FCM 
Issue Date: Apr-2016
Source: IEEE transactions on vehicular technology, Apr. 2016, v. 65, no. 4, 7080854, p. 2741-2747
Abstract: We investigate the protograph low-density parity-check (LDPC) codes over quasi-static fading (QSF) relay channels with coded cooperation (CC) in this paper. A new construction method is proposed for designing the full-diversity rate-compatible root-protograph (RCRP) codes for such a relaying protocol. The asymptotic word error rate (WER) and bit error rate (BER) of the RCRP codes are analyzed by exploiting a new protograph extrinsic information transfer (PEXIT) algorithm. Furthermore, the expression of outage probability is also developed to characterize the error performance of RCRP codes. Both theoretical and simulated results suggest that the RCRP codes not only outperform the conventional regular rate-compatible protograph (RCP) codes in terms of error performance with code rates ranging from 0 to 1/2 but approach the outage limit as well.
Keywords: Coded cooperation (CC)
Extrinsic information transfer (EXIT)
Outage probability
Protograph LDPC codes
Quasi-static fading (QSF) channels
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE transactions on vehicular technology 
ISSN: 0018-9545
EISSN: 1939-9359
DOI: 10.1109/TVT.2015.2420570
Rights: © 2015 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
The following publication Y. Fang, Y. L. Guan, G. Bi, L. Wang and F. C. M. Lau, "Rate-Compatible Root-Protograph LDPC Codes for Quasi-Static Fading Relay Channels," in IEEE Transactions on Vehicular Technology, vol. 65, no. 4, pp. 2741-2747, April 2016 is available at https://dx.doi.org/10.1109/TVT.2015.2420570.
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