Instantaneous relaying with bit-interleaved coded modulation: Design and optimization
2010 (English)In: 2010 IEEE 6th International Symposium on Turbo Codes and Iterative Information Processing (ISTC), IEEE conference proceedings, 2010, 221-225 p.Conference paper (Refereed)
In this paper, we combine bit-interleaved coded modulation (BICM) with instantaneous relaying for the three-node relay channel. We propose a two-step optimization: The first step optimizes the relay functions for different instantaneous relaying strategies like sawtooth (ST) relaying and constellation rearrangement (CR) relaying in order to provide the highest amount of mutual information to the destination. The second step focuses on the bit-to-symbol mapping with the purpose to maximize the achievable gain from iterative demapping/decoding. As our results show, a significant gain can be obtained by using ST and CR relaying with optimized mappings compared with conventional amplify-and-forward and detect-and-forward relaying and compared with standard mappings optimized for point-to-point communications.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2010. 221-225 p.
IdentifiersURN: urn:nbn:se:kth:diva-50492DOI: 10.1109/ISTC.2010.5613843ScopusID: 2-s2.0-78649313382OAI: oai:DiVA.org:kth-50492DiVA: diva2:462158
6th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2010. Brest. 6 September 2010 - 10 September 2010
QC 201112072011-12-062011-12-062016-05-23Bibliographically approved