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Optimization of transceivers with bit allocation to maximize bit rate for MIMO transmission

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4 Author(s)
C. -C. Li ; Electrical and Control Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan 300, ROC ; Y. -P. Lin ; S. -H. Tsai ; P. P. Vaidyanathan

There have been many results on designing transceivers for MIMO channels. In early results, the transceiver is designed for a given bit allocation. In this paper we will jointly design the transceiver and bit allocation for maximizing bit rate. By using a high bit rate assumption, we will see that the optimal transceiver and bit allocation can be obtained in a closed form using simple Hadamard inequality and the Poincare separation theorem. In the simulation, we will demonstrate the usefulness of the joint design. Simulation results, in which a high bit rate assumption is not used in allocating bits, show that a higher bit rate can be achieved compared to previously reported methods.

Published in:

IEEE Transactions on Communications  (Volume:57 ,  Issue: 12 )