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Turbo product codes for FH-SS with partial-band interference

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2 Author(s)
Qing Zhang ; Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada ; Tho Le-Ngoc

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

Published in:

IEEE Transactions on Wireless Communications  (Volume:1 ,  Issue: 3 )