TY - GEN
T1 - Joint Power and Bandwidth Optimization in CoMP-Enabled URLLC Networks Under Imperfect CSI
AU - Guo, Yunan
AU - Zheng, Fu Chun
AU - Shi, Bing
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This paper proposes a joint power and bandwidth optimization framework for ultra-reliable and low-latency communications (URLLC) in coordinated multi-point (CoMP) systems, addressing both imperfect CSI and queueing. We characterize the queueing model using effective bandwidth theory and derive the signal-to-interference-plus-noise ratio (SINR) under the channel estimation delays and errors. A block error rate (BLER) minimization problem is formulated with constraints on power, bandwidth, and URLLC QoS metrics. The problem is decomposed into bandwidth and power allocation subproblems, solved alternately via an iterative algorithm. Simulation results demonstrate that the proposed algorithm achieves over a 25% improvement in network availability compared to other benchmarks, ensuring 99.99999% reliability for all URLLC users under 1 ms latency.
AB - This paper proposes a joint power and bandwidth optimization framework for ultra-reliable and low-latency communications (URLLC) in coordinated multi-point (CoMP) systems, addressing both imperfect CSI and queueing. We characterize the queueing model using effective bandwidth theory and derive the signal-to-interference-plus-noise ratio (SINR) under the channel estimation delays and errors. A block error rate (BLER) minimization problem is formulated with constraints on power, bandwidth, and URLLC QoS metrics. The problem is decomposed into bandwidth and power allocation subproblems, solved alternately via an iterative algorithm. Simulation results demonstrate that the proposed algorithm achieves over a 25% improvement in network availability compared to other benchmarks, ensuring 99.99999% reliability for all URLLC users under 1 ms latency.
KW - Coordinated multi-point (CoMP)
KW - imperfect channel state information (CSI)
KW - queueing
KW - resource allocation
KW - ultra-reliable and low-latency communications (URLLC)
UR - https://www.scopus.com/pages/publications/105032409441
U2 - 10.1109/VTC2025-Fall65116.2025.11310630
DO - 10.1109/VTC2025-Fall65116.2025.11310630
M3 - 会议稿件
AN - SCOPUS:105032409441
T3 - IEEE Vehicular Technology Conference
BT - 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025
Y2 - 19 October 2025 through 22 October 2025
ER -