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- W2036389625 abstract "In this letter, we study beamformer design to minimize the sum mean square error (SMSE) in a multiple-input–multiple-output (MIMO) joint transmission system. By assuming that the backhaul capacity is non-ideal, the original problem is mixed with a $l_{0}$ norm, which is non-convex and NP hard. Therefore, we introduce a weighted $l_{1}$ norm to relax it and propose a suboptimal iterative scheme to derive the transmit and receive beamformers. This algorithm is proved to be convergent and can be implemented in a distributed way. Simulation shows that our method can achieve an SMSE performance that is similar to the ideal backhaul-based SMSE minimization, whereas the former can decrease 20% backhaul consumption at the same time." @default.
- W2036389625 created "2016-06-24" @default.
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- W2036389625 date "2014-11-01" @default.
- W2036389625 modified "2023-09-24" @default.
- W2036389625 title "Sum-MSE Optimization for Joint Transmission With Limited Backhaul" @default.
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- W2036389625 doi "https://doi.org/10.1109/lcomm.2014.2361811" @default.
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