Decentralizing Coherent Joint Transmission Precoding via Deterministic Equivalents
<|reference_start|>Decentralizing Coherent Joint Transmission Precoding via Deterministic Equivalents: In order to control the inter-cell interference for a multi-cell multi-user multiple-input multiple-output network, we consider the precoder design for coordinated multi-point with downlink coherent joint transmission. To avoid costly information exchange among the cooperating base stations in a centralized precoding scheme, we propose a decentralized one by considering the power minimization problem. By approximating the inter-cell interference using the deterministic equivalents, this problem is decoupled to sub-problems which are solved in a decentralized manner at different base stations. Simulation results demonstrate the effectiveness of our proposed decentralized precoding scheme, where only 2 ~ 7% more transmit power is needed compared with the optimal centralized precoder.<|reference_end|>
@article{liu2024decentralizing,
    title={Decentralizing Coherent Joint Transmission Precoding via Deterministic
  Equivalents},
    author={Yuhao Liu, Xinyu Bian, Yizhou Xu, Tianqi Hou, Wenjie Wang, Yuyi Mao,
  Jun Zhang},
    journal={arXiv preprint arXiv:2403.09958},
    year={2024},
    archivePrefix={arXiv},
    eprint={2403.09958},
    primaryClass={eess.SP cs.IT math.IT}
}