TY - GEN
T1 - DECENTRALIZING COHERENT JOINT TRANSMISSION PRECODING VIA DETERMINISTIC EQUIVALENTS
AU - Liu, Yuhao
AU - Bian, Xinyu
AU - Xu, Yizhou
AU - Hou, Tianqi
AU - Wang, Wenjie
AU - Mao, Yuyi
AU - Zhang, Jun
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024/4
Y1 - 2024/4
N2 - 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.
AB - 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.
KW - Coherent joint transmission
KW - decentralized coordinated precoding
KW - deterministic equivalents
KW - power minimization
UR - http://www.scopus.com/inward/record.url?scp=85189877092&partnerID=8YFLogxK
U2 - 10.1109/ICASSP48485.2024.10447449
DO - 10.1109/ICASSP48485.2024.10447449
M3 - Conference article published in proceeding or book
AN - SCOPUS:85189877092
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 8936
EP - 8940
BT - 2024 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024
Y2 - 14 April 2024 through 19 April 2024
ER -