On LDPC codes for Gaussian interference channels
Proceedings of the International Symposium on Information Theory, IEEE 2014
1992 - 1996
Item Usage Stats
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.
Forward error correction
Average mutual information
Finite block length
Gaussian interference channels
Low-density parity-check (LDPC) codes
Published Version (Please cite this version)http://dx.doi.org/10.1109/ISIT.2014.6875182
Showing items related by title, author, creator and subject.
Göktaş, Polat; Topcu, Satılmış; Karaşan, Ezhan; Altıntaş, Ayhan (IEEE, 2015-05)Bu çalışmada, NATO Band 3+ (1350-2690 MHz) ve NATO Band 4 (4400-5000 MHz) frekans bantlarında çalışan sabit karasal mikrodalga LOS (karasal görüş çizgisi)/ NLOS (ufuk ötesi) radyo linkleri için enterferans modellenmesi ele ...
Arslan, H.; Yarkan S.; Şahin, M. E.; Gezici, Sinan (Cambridge University Press, 2011)Wireless systems are commonly affected by interference from various sources. For example, a number of users that operate in the same wireless network can result in multiple-access interference (MAI). In addition, for ...
A novel measurement-based approach for modeling and computing interference factors for wireless channels Ulucinar, A. R.; Korpeoglu, I.; Karasan, E. (SpringerOpen, 2013)Wireless communication technologies divide their available spectrum into pre-defined channels. Some wireless technologies, such as the IEEE 802.11b/g, define their channels in such a way that adjacent channels share the ...