Power Allocation Scheme for Coded MIMO Multi-Carrier Systems
نویسندگان
چکیده
Orthogonal Frequency Division Multiplexing (OFDM) is a popular method for high data rate wireless transmission. Combining OFDM with antenna arrays at the transmitter and receiver enhances the capacity gain. This paper proposes a novel transmit power allocation for Coded MultiInput Multi-Output Multi-Carrier Modulation (MIMO-MCM). This technique consists of adapting the power allocation in the spatial domain (i.e. through the different transmit antennas) in term of the channel conditions by the optimization process based on the optimality of the global Bit Error Rate (BER). Simulation results show significant gains for several antenna configurations. KeywordsOFDM, MIMO, Lagrangian method, global BER optimization.
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