Tensor Space-Time-Frequency Coding With Semi-Blind Receivers for MIMO Wireless Communication Systems
作者： Gerard Favier , Andre L. F. de Almeida
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摘要: In this paper, we first introduce two new classes of constrained tensor models that call generalized PARATUCK- (N1, N) and Tucker- models. A space-time-frequency (TSTF) coding structure is then proposed for MIMO OFDM-CDMA wireless communication systems. Two semi-blind receivers relying on the PARATUCK model are derived solving problem joint channel symbol estimation. One iterative based a two-step alternating least squares (ALS) algorithm. The other one closed-form low-complexity solution which consists Kronecker product (KPLS) estimation matrix unfolding tensor. Uniqueness underlying discussed system design requirements applicability ALS KPLS receivers. We also show so-called TSTF can be viewed as an extension three existing tensor-based ST/TST/STF systems described in unified framework. Computer simulation results illustrate good performance outperforms considered both terms quality allocation flexibility.
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