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High level trellis-coded modulation with slow frequency hopping for land mobile communications

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2 Author(s)
Kai-Yiu Tsie ; Dept. of Electron. & Electr. Eng., King''s Coll., London, UK ; Aghvami, A.H.

The use of high level modulation systems such as trellis-coded 8-PSK and trellis-coded 16-QAM, with slow frequency hopping, pilot symbol aided and small-sized interleaving techniques is proposed for land mobile communications. The bit error rate (BER) performance of those systems in the presence of additive white Gaussian noise (AWGN), cochannel interference (CCI), and slow Rayleigh fading are evaluated by computer simulation. Space diversity is applied to enhance the system performance. The authors show that by choosing optimum interleaving size and number of frequency hopped (FH) channels, the proposed systems give considerable performance improvement and much less delay, especially in a slow fading environment

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Vehicular Technology, IEEE Transactions on  (Volume:43 ,  Issue: 1 )