Trellis - Coded MPSK Modulation for Highly Efficient Military Satellite Applications

Andrew J Viterbi, Jack K. Wolf, E. Zehavi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Trellis-coded multiple-phase-shift-keyed (MPSK) modulation is an effective technique for increasing the bandwidth efficiency of an existing channel while maintaining at least a moderate degree of power efficiency through coding. The authors consider the application of this technique to increase markedly the capacity of a 25-kHz military satellite channel. It is shown that with only minor modifications to the QPSK modem to incorporate 8 PSK and 16 PSK modulation and no modification to the rate-1/2 coder used to transmit 16 kb/s over this channel, transmission rates of 32 kb/s and 48 kb/s, can be supported at E/sub b//N/sub 0/ levels only moderately higher than for the lower data rate. In fact, it is demonstrated that 48 Kb/s can be transmitted within exactly the same bandwidth and at the same E/sub b//N/sub 0/ levels as that required to transmit uncoded QPSK at 32 kb/s at bit error rate of 10/sup -5/.
Original languageAmerican English
Title of host publicationMilitary Communications Conference, 1988. MILCOM 88, Conference record. 21st Century Military Communications-What's Possible?
StatePublished - 1988

Bibliographical note

Place of conference:USA


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