Abstract
A new receiver structure able to deliver high data rates in a multiple input-multiple output (MIMO) frequency selective wireless environment is proposed and investigated in this paper. The optimal solution for the finite-length MIMO decision feedback equalizer (DFE) with cancellation is derived and used to illustrate the potential of this architecture for space-time communications. LMS and RLS adaptive algorithms are also presented for the MIMO architecture. The convergence and performance of these adaptive algorithms is analyzed through simulation results. The proposed adaptive solutions do not require channel identification, are less computationally intensive than their optimal solution counterpart, and allow the proposed MIMO receiver to seamlessly adapt to channel changes.
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Frigon, JF., Daneshrad, B. A Multiple Input-Multiple Output (MIMO) Adaptive Decision Feedback Equalizer (DFE) with Cancellation for Wideband Space-Time Communications. International Journal of Wireless Information Networks 9, 13–23 (2002). https://doi.org/10.1023/A:1014993817231
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DOI: https://doi.org/10.1023/A:1014993817231