Very low rate trellis/Reed-Muller (TRM) codes

Author

Chaib, Jean-Paul ; Leib, Harry

Author_Institution

Nortel Networks, St.-Laurent, Que., Canada

Volume

47

Issue

10

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1476

Lastpage

1487

Abstract

This paper considers a technique for very low rate channel coding. The main application for such codes is in spread-spectrum systems where significant bandwidth spreading is possible. New, very low rate binary channel codes based on a combination of a trellis code with a first-order Reed-Muller block code (trellis/Reed-Muller (TRM) codes) are presented. The construction technique for TRM codes, which is considered in this paper, is related to Kerdock (1972) codes. It is shown that these TRM codes provide a better tradeoff between rate and gain than other existing very low rate codes, such as the orthogonal or superorthogonal convolutional codes, and the IS-95 uplink code. Due to their improved performance, TRM codes can significantly increase the bandwidth efficiency of spread-spectrum multiple-access systems

Keywords

Reed-Muller codes; block codes; cellular radio; channel coding; multi-access systems; radio links; spread spectrum communication; trellis codes; AWGN; IS-95 uplink code; Kerdock codes; SSMA; TRM codes; bandwidth efficiency; bandwidth spreading; binary channel codes; channel coding; code rate; coding gain; first-order Reed-Muller block code; orthogonal convolutional code; performance; spread-spectrum multiple-access systems; superorthogonal convolutional code; trellis code; trellis/Reed-Muller codes; very low rate TRM codes; very low rate codes; AWGN; Bandwidth; Block codes; Channel coding; Convolutional codes; Error correction; Error correction codes; Shift registers; Spread spectrum communication; Transmission line measurements;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.795816

Filename

795816