BICM Transmission using Non-Uniform QAM Constellations: Performance Analysis and Design
Paper in proceeding, 2010
In this paper we study bit-interleaved coded modulation (BICM) transmission using non-uniform (NU) quadrature amplitude modulation (QAM) constellations. For such a NU-QAM-BICM transmission, we develop closed-form approximations for the probability density function of the L-values, and we use them to predict the coded bit error rate (BER) performance of the system in the AWGN channel. We then optimize NU-QAM-BICM based on convolutional codes. Compared to uniform QAM-based BICM transmission, and for a target BER of 10^-7, we reach gains up to 1 dB. When the design is applied to turbo codes a decrease in the error floor can be obtained.
Author
Md. Jahangir Hossain
INRS-Energy, Materials and Telecommunications
Alex Alvarado
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Leszek Szczecinski
INRS-Energy, Materials and Telecommunications
IEEE International Conference on Communications
15503607 (ISSN)
55018739781424464043 (ISBN)
Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
Electrical Engineering, Electronic Engineering, Information Engineering
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/ICC.2010.5501873
ISBN
9781424464043