An Improved Design of Gallager Mapping for LDPC-coded BICM-ID System
Journal Title: Elektronika - Year 2016, Vol 20, Issue 1
Abstract
Gallager mapping uses different signal points with different probabilities by assigning several labels for one signal point, and thus provides a promising approach to achieving shaping gains. An important issue in Gallager mapping is how to assign labels for signal points. In this paper, two optimized design rules for Gallager mapping of bit-interleaved coded modulation scheme with iterative decoding (BICM-ID) are proposed, where the Hamming distance among the labels for one signal point should be minimized. The extrinsic information transfer (EXIT) technique is utilized to design and analyze the proposed mapping patterns. Compared with conventional Gallager mapping, our proposed method provides extra shaping gain for the LDPC-coded BICM-ID system. And our proposed method supplies better performance than conventional uniform mapping with the same spectrum efficiency.
Authors and Affiliations
Lin Zhou, Weicheng Huang, Shengliang Peng, Yan Chen, Yucheng He
Keywords
Related Articles
- EP ID EP362511
- DOI 10.7251/ELS1620016Z
- Views 82
- Downloads 0
LUT Based Generalized Parallel Counters for State-of-art FPGAs
Generalized Parallel Counters (GPCs) are frequently used in constructing high speed compressor trees. Previous work has focused on achieving efficient mapping of GPCs on FPGAs by using a combination of general Look-up ta...
Energy Efficient Multi-Core Processing
This paper evaluates the present state of the art of energy-efficient embedded processor design techniques and demonstrates, how small, variable-architecture embedded processors may exploit a run-time minimal architectur...
Modular Environment for Development and Characterization of Tunable Energy Harvesting Systems
This paper presents the design and development process for an electromagnetic self-tuned vibrational energy harvester prototype. Most state-of-the-art publications present non-tunable or manually tunable vibrational ener...
Prototype of the Multichannel Acquisition System Developed for ICTM Pressure Transmitters
This paper presents a prototype of the multichannel acquisition unit AKV-100 developed for purposes of pressure and temperature measurements using proprietary ICTM pressure transmitters TPa-110 based on MEMS piezoresisti...
Study on a Composite Patch Antenna Based on Left Handed Material with Near Zero Index
In this paper, a composite patch antenna based on left handed material (LHM) with near zero index (NZI) is presented. This composite patch antenna is designed by assembling split resonant rings (SRRs) and metal strips on...