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- W2922121421 abstract "In this letter, we propose a sphere bounding scheme for probabilistic robust constructive interference (CI) power minimizing precoding, to address the imperfect channel state information (CSI) caused by the channel error (CE), which satisfies the known distribution in single-cell multiuser multipleinput single-output (MISO) downlink transmission. In the proposed scheme, we transform the probabilistic quality of service (QoS) constraints into tractable sphere bounding second-order cone (SOC) constraints through taking two-step tightening, and then we model tightened CI max-min signal-to-noise ratio (SNR) precoding, proving that its lower bound can be solved through tightened CI power minimizing precoding. Besides, in tightened CI power minimizing precoding, we propose the relaxation iteration to relax the connect probability requirement. Finally, we analyze the complexity of our proposed scheme. Numerical results show that our proposed schemes perform well in the satisfaction of the connect probability requirement, resulting in lower symbol error rate (SER) and higher transmit power." @default.
- W2922121421 created "2019-03-22" @default.
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- W2922121421 creator A5062600814 @default.
- W2922121421 date "2019-03-12" @default.
- W2922121421 modified "2023-09-26" @default.
- W2922121421 title "Sphere Bounding Scheme for Probabilistic Robust Constructive Interference Precoding in MISO Downlink Transmission" @default.
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- W2922121421 doi "https://doi.org/10.48550/arxiv.1903.04740" @default.
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