Title :
Turbo codes for satellite and wireless ATM
Author :
Vilaipornsawai, Usa ; Soleymani, M.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
In connection oriented networks such as asynchronous transfer mode (ATM), small fixed-size cells are sent, so the choice of turbo codes which have block codes as component codes is suitable. We present a turbo coding scheme using Reed-Muller (RM) codes as component codes. In particular, we design the code in such a way as to match the structure of the ATM (and ATM-like) cells by shortening the RM turbo codes. The performance of these turbo codes and their shortened versions with different shortening patterns are investigated. We also consider the problem of carrier phase recovery when the proposed turbo coding scheme is used with quadrature phase-shift keying (QPSK) modulation. The effects of phase offset and preamble size on the performance of shortened turbo code are reported
Keywords :
AWGN channels; Rayleigh channels; Reed-Muller codes; asynchronous transfer mode; block codes; quadrature phase shift keying; satellite communication; turbo codes; QPSK modulation; Reed-Muller codes; asynchronous transfer mode; block codes; carrier phase recovery; connection oriented networks; phase offset; preamble size; quadrature phase-shift keying; satellite ATM; shortening patterns; small fixed-size cells; turbo codes; turbo coding scheme; wireless ATM; AWGN channels; Asynchronous transfer mode; Block codes; Iterative decoding; Phase modulation; Phase shift keying; Quadrature phase shift keying; Rayleigh channels; Satellites; Turbo codes;
Conference_Titel :
Information Technology: Coding and Computing, 2001. Proceedings. International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-7695-1062-0
DOI :
10.1109/ITCC.2001.918776
