On LDPC codes for Gaussian interference channels
IEEE International Symposium on Information Theory - Proceedings
Institute of Electrical and Electronics Engineers Inc.
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/27175
In this paper, we focus on the two-user Gaussian interference channel (GIC), and study the Han-Kobayashi (HK) coding/decoding strategy with the objective of designing low-density parity-check (LDPC) codes. A code optimization algorithm is proposed which adopts a random perturbation technique via tracking the average mutual information. The degree distribution optimization and convergence threshold computation are carried out for strong and weak interference channels, employing binary phase-shift keying (BPSK). Under strong interference, it is observed that optimized codes operate close to the capacity boundary. For the case of weak interference, it is shown that via the newly designed codes, a nontrivial rate pair is achievable, which is not attainable by single user codes with time-sharing. Performance of the designed LDPC codes are also studied for finite block lengths through simulations of specific codes picked from the optimized degree distributions. © 2014 IEEE.
- Conference Paper 
Showing items related by title, author, creator and subject.
Interference analysis of fixed terrestrial microwave LOS/NLOS radio links [Sabit Karasal Mikrodalga LOS/NLOS Radyo Linklerin Enterferans Analizi] Goktas P.; Topcu, S.; Karasan, E.; Altintas, A. (Institute of Electrical and Electronics Engineers Inc., 2015)In this study, interference modelling is investigated for fixed terrestrial microwave LOS (line-of-sight)/ NLOS (transhorizon) radio links operating in NATO Band 3+ (1350-2690 MHz) and NATO Band 4 (4400-5000 MHz) frequency ...
Sharifi S.; Dabirnia M.; Tanc A.K.; Duman T.M. (Institute of Electrical and Electronics Engineers Inc., 2016)We focus on short block length code design for Gaussian interference channels (GICs) using trellis-based codes. We employ two different decoding techniques at the receiver side, namely, joint maximum likelihood (JML) ...
Aktas E.; Aktas D.; Hanly S.; Evans J. (Cambridge University Press, 2011)Introduction Cellular communication systems provide wireless coverage to mobile users across potentially large geographical areas, where base stations (BSs) provide service to users as interfaces to the public telephone ...