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Design of optimal zero-forcing precoders for MIMO channels via optimal full information control

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2 Author(s)
Lijuan Li ; Dept. of Electr. & Comput. Eng., Louisiana State Univ., Baton Rouge, LA, USA ; Guoxiang Gu

This paper investigates, under the zero-forcing (ZF) condition, the design of optimal precoders which minimize the bit error rate (BER) for the multiple-input/multiple-output (MIMO) downlink communication channels. It is shown that the optimal full information control can be employed to design the optimal ZF precoder. The closed-form solutions are derived, and an efficient design algorithm is proposed. Numerical simulations are provided to illustrate the proposed design technique and to demonstrate the performance of the optimal precoders.

Published in:

Signal Processing, IEEE Transactions on  (Volume:53 ,  Issue: 8 )

Date of Publication:

Aug. 2005

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