Title :
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
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;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2010.2047739
