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Multiple-trellis-coded unitary space-time modulation in Rayleigh flat fading

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2 Author(s)
Zhenyu Sun ; Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore ; Tjeng Thiang Tjhung

We propose and investigate a multiple-trellis-coded unitary space-time modulation (MTC-USTM) for a Rayleigh-flat-fading channel, where k≥2 unitary space-time signal blocks are assigned to a single branch in the trellis. We have also evolved design criteria which are aimed at minimizing the pairwise error-event probability (PEP) and a partitioning scheme for the k-fold Cartesian product of the UST signal set for MTC-USTM. We demonstrate through simulations as well as theoretical analysis that MTC-USTM can produce superior bit-error probability performance over the trellis-coded USTM (single signal per branch) of the same information rate and number of states, especially in the region of high signal-to-noise ratio.

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Wireless Communications, IEEE Transactions on  (Volume:3 ,  Issue: 6 )