VLSI-implementation issues of turbo trellis-coded modulation

Author

Kienle, Frank ; Kreiselmaier, G. ; Wehn, Norbert

Author_Institution

Inst. of Microelectron. Syst., Kaiserslautern Univ., Germany

Volume

2

fYear

2003

fDate

6-10 April 2003

Abstract

Turbo trellis-coded modulation (TTCM) is a very promising approach for future communication systems. It combines the advantages of channel coding with multilevel signals and the powerful turbo-codes concept. In this paper we consider VLSI implementation aspects of TTCM. We show that techniques, known from binary turbo-decoders, can be applied to TTCM to reduce the implementation complexity significantly. In detail we explore iteration control, quantization, scaling, and the MAP architecture using a bit-true model of an 8-state TTCM decoder.

Keywords

VLSI; channel coding; iterative decoding; maximum likelihood decoding; quantisation (signal); trellis coded modulation; turbo codes; 8-state TTCM decoder; MAP architecture; VLSI; bit-true model; channel coding; future communication systems; implementation complexity; iteration control; multilevel signals; quantization; scaling; turbo codes; turbo trellis-coded modulation; Bandwidth; Channel coding; Communication system control; Concatenated codes; Iterative decoding; Microelectronics; Power system modeling; Switches; Turbo codes; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1202446

Filename

1202446