Title :
Turbo product codes for FH-SS with partial-band interference
Author :
Zhang, Qing ; Le-Ngoc, Tho
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada
fDate :
7/1/2002 12:00:00 AM
Abstract :
Turbo product codes (TPC) are investigated for use in frequency-hopping spread-spectrum (FH-SS) communications in partial-band interference. Binary orthogonal FSK is employed with noncoherent envelope detection. The Fossorier-Lin (1995) algorithm of soft-decision decoding based on ordered statistics is employed for soft-in/soft-out decoder instead of Chase (1972) algorithm to reduce the required Eb /NJ for a given packet failure probability. Performance of TPC for FH-SS with and without memory is evaluated by simulation. A numerical method to calculate the upper bound on performance is also given. The results show that the low-complexity TPC has a similar performance to the high-complexity convolutional turbo codes (CTC) for FH-SS without memory. For FH-SS with memory, full interleaving is used for TPC to achieve a good performance at low duty factors of partial-band interference
Keywords :
concatenated codes; convolutional codes; decoding; frequency hop communication; frequency shift keying; interleaved codes; packet radio networks; probability; radiofrequency interference; spread spectrum communication; statistical analysis; turbo codes; FH-SS; Fossorier-Lin algorithm; binary orthogonal FSK; frequency-hopping spread-spectrum communications; high-complexity convolutional turbo codes; interleaving; low duty factors; low-complexity TPC; memory; noncoherent envelope detection; ordered statistics; packet failure probability; parallel concatenated convolutional codes; partial-band interference; simulation; soft-decision decoding; soft-in/soft-out decoder; turbo product codes; upper bound; Convolutional codes; Decoding; Envelope detectors; Frequency shift keying; Interference; Probability; Product codes; Spread spectrum communication; Statistics; Upper bound;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2002.800549
