Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
447067 | AEU - International Journal of Electronics and Communications | 2007 | 6 Pages |
Abstract
We propose to investigate the performance of bit-interleaved coded modulation with iterative decoding (BICM-ID) over Rayleigh fading channel by using constellation shaping (CS). The (CS) is implemented by inserting shaping block codes between mapping and channel coding functions, in order to generate non-equiprobable distribution of a 16-ary QAM signal constellation. Simulation results carried out on 2-bit/s/Hz 16-QAM BICM-ID indicate that is possible to obtain a gain of 1.2 dB at a BER of 10-310-3 compared to the equiprobable 16-QAM BICM-ID schemes. It is also shown that, the error floor level can reduced by applying the signal space diversity technique.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Boubakar S. Bouazza, Ali Djebari,