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Performance of unitary space-time modulation in a continuously changing channel

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2 Author(s)
Peel, C.B. ; Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA ; Swindlehurst, A.L.

The fading channel is a significant problem in many communications environments. We examine the performance of unitary space-time modulation in a time-varying channel. We use a Gauss-Markov model of the continuously varying channel to characterize performance of differential and trained modulation. We find a performance ceiling at high SNR where the effect of the changing channel dominates. We show that while trained modulation provides an advantage at low SNR, above a certain SNR differential modulation gives better performance. We conclude with simulation results that support our analysis

Published in:

Communications, 2001. ICC 2001. IEEE International Conference on  (Volume:9 )

Date of Conference: