Unequal Error Protection in BICM with QAM Constellations: Interleaver and Code Design
Paper in proceedings, 2009

In this paper we present a general methodology for the interleaver and code design for QAM-based BICM transmissions. We develop analytical bounds on the bit error rate and we use them to predict the performance of BICM when unequal error protection (UEP) is introduced by the constellation labeling. Based on these bounds, the optimum design of interleaver and code is presented. The improvements obtained reached 2~dB for the analyzed cases, and are obtained without complexity increase. Although previous works noted the influence of the interleaver design and the UEP, to the best of our knowledge, this paper is the first to analyze formally this problem for BICM transmissions.

Interleaver Design

BICM

BRGC

Turbo Codes

BER

L-values

QAM

Union Bound

LLRs

Author

Alex Alvarado

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Erik Agrell

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Leszek Szczecinski

INRS-Energy, Materials and Telecommunications

Arne Svensson

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

IEEE International Conference on Communications

05361486 (ISSN)

5199551

Subject Categories

Telecommunications

DOI

10.1109/ICC.2009.5199551

ISBN

9781424434350

More information

Latest update

3/29/2018