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New rate-1/3 trellis codes with 8-PSK signals for bandlimited AWGN channels

New rate-1/3 trellis codes with 8-PSK signals for bandlimited AWGN channels

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New rate-1/3; linear trellis (convolutional) codes with 8-PSK modulation for bandlimited additive white Gaussian noise channels are reported. The simulated bit error probability performance of the trellis-coded modulation schemes with unquantised Viterbi decoding shows useful coding gains over the uncoded coherent BPSK having the same bandwidth efficiency of 1 bit/s/Hz, and the schemes are suitable for use in many practical bandlimited channels.

References

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      • S. Lin , D.J. Costello . (1983) Error control coding: fundamentals applications.
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      • G.D. Forney . The Viterbi algorithm. Proc. IEEE , 3 , 268 - 278
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      • G.D. Forney . Convolutional codes I: algebraic structures. IEEE Trans. , 720 - 738
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      • M.G. Mulligan , S.G. Wilson . An improved algorithm for evaluating trellis phase codes. IEEE Trans. , 846 - 851
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      • Ungerboeck, G.: `Codes for QPSK modulation with invariance under 90° rotation', Mobile Satellite Conf. Proc., May 1988, 88-9, JPL publication, p. 277–282.
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