Energy-Efficient Optimization via Joint Power and Subcarrier Allocation for eMBB and URLLC Services

被引：16
|
作者：
Liu, Bo [1 ]
Zhu, Pengcheng [1 ]
Li, Jiamin [1 ]
Wang, Dongming [1 ]
Wang, Yan [1 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2022年 / 11卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Ultra reliable low latency communication; Resource management; Reliability; Signal to noise ratio; Optimization; Quality of service; Spectral efficiency; eMBB; URLLC; non-orthogonal scheduling; EE; subcarrier assignment; power allocation;
D O I：
10.1109/LWC.2022.3202704
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This letter considers joint subcarrier and power allocation in the distributed MIMO system for enhanced mobile broadband (eMBB) and ultra-reliable low-latency communication (URLLC) services. Orthogonal and non-orthogonal scheduling scheme can be selected by subcarrier assignment to improve spectral efficiency and meet the reliability requirement of URLLC. Short packet transmission is adopted for URLLC to meet the low latency requirements. We formulate a mixed-integer optimization problem by maximizing the energy efficiency (EE) of the system subject to quality of service (QoS) constraints. The problem is intractable to solve and then we propose a low computational complexity algorithm to find the suboptimal solution of the problem. Simulation results show that the proposed algorithm can converge fast and significantly improve the EE for eMBB and URLLC services.
引用
收藏
页码：2340 / 2344
页数：5
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