Irregular Convolutional Codes in Multiantenna Bit-Interleaved Coded Modulation Under Iterative Detection and Decoding

Author

Elkhazin, Akrum ; Plataniotis, Konstantinos ; Pasupathy, Subbarayan

Author_Institution

Magnum Semicond., Milpitas, CA, USA

Volume

59

Issue

7

fYear

2010

Firstpage

3332

Lastpage

3341

Abstract

This paper develops a family of irregular convolutional codes for bit-interleaved coded modulation (BICM) systems under iterative detection and decoding. Irregular convolutional codes are constructed through irregular puncturing over multiple mother codes of different memory. Strategies based on fixed- and variable-size trellises are proposed to connect different memory mother codes. The use of irregular puncturing and code memory yields improved coding efficiency with the aid of extrinsic information transfer charts. Under ergodic and quasi-static fading conditions, multiantenna BICM systems using the proposed codes outperform comparable turbo-coded systems and multilevel coding strategies.

Keywords

antennas; convolutional codes; iterative decoding; trellis coded modulation; code memory; ergodic fading condition; extrinsic information transfer charts; fixed-size trellises; irregular convolutional codes; irregular puncturing; iterative decoding; iterative detection; memory mother codes; multiantenna bit-interleaved coded modulation system; quasi-static fading condition; variable-size trellises; Bandwidth; Convolution; Convolutional codes; Fading; Interleaved codes; Iterative decoding; Modulation coding; Permission; Shape control; Turbo codes; Bit-interleaved coded modulation (BICM); extrinsic information transfer (EXIT); irregular convolution codes; iterative detection and decoding (IDD); multiple-antenna systems; tail biting;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2010.2047739

Filename

5444959