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This paper investigates direct beamformer estimation in dynamic time division duplexing (TDD) system with the objective of weighted sum rate maximization. For a given TDD frame, base stations (BS) are allocated to either uplink or downlink based on the instantaneous traffic state. The weighted sum mean-squared error minimization framework is used to obtain the decentralized iterative solution for...
We consider the problem of designing transmit and receive precoders to minimize the number of backlogged packets at the base stations (BSs) in a multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) scenario. Due to the nonconvex nature of the problem, we propose an iterative method for designing transmit precoders and receive beamformers. Since the overhead involved...
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