Bit-Interleaved Coded Modulation Systems with Iterative Decoding and Partial Reusing QAM Signal Points

Nguyen Quang Tuan; Do Quoc Trinh; Tran Xuan Nam; Dinh The Cuong

doi:10.21553/rev-jec.23

Bit-Interleaved Coded Modulation Systems with Iterative Decoding and Partial Reusing QAM Signal Points

Nguyen Quang Tuan Dept. of Communications, Ministry of Public Security
Do Quoc Trinh Le Qui Don Technical University, Hanoi
Tran Xuan Nam Le Qui Don Technical University, Hanoi
Dinh The Cuong Le Qui Don Technical University, Hanoi

DOI: https://doi.org/10.21553/rev-jec.23

Abstract

A new method of reusing a subset of an M-QAM signal constellation is presented for Bit-Interleaved Coded Modulation systems with Iterative Decoding (BICM-ID). In addition to the remapping of high-energy signals to low-energy signals in order to save the average signal energy as a shaping technique known so far, a new scheme of remapping low-energy signals to high-energy signals is proposed in order to gain the equivalent distance when decoding bits, often called the Squared Euclidean Weights (SEW). Numerical analysis and simulation results show that the partial reuse of the signals in the BICM-ID system with 16-QAM can improve the system performance in terms of lowering the bit error rate in the error floor region.

Published

2011-12-31

Issue

Vol. 1, No. 3 (Jul-Sep, 2011)

Section

Regular articles

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