Dynamic Resource Allocation for Transmit Power Minimization in   OFDM-Based NOMA Systems

doi:10.1109/LCOMM.2016.2612688

CORC > 北京大学 > 信息科学技术学院

	Dynamic Resource Allocation for Transmit Power Minimization in OFDM-Based NOMA Systems
	Li, Xunan ; Li, Chong ; Jin, Ye
刊名	IEEE COMMUNICATIONS LETTERS
	2016
关键词	Resource allocation OFDM NOMA QoS power minimization
DOI	10.1109/LCOMM.2016.2612688
英文摘要	In this letter, resource allocation in a downlink orthogonal frequency division multiplexing (OFDM)-based non-orthogonal multiple access (NOMA) system is studied. We investigate an optimization problem of minimizing the total transmit power under quality of service requirements, by jointly searching for optimal subcarrier assignments of each user and power allocations over subcarriers. We first present an optimal solution of power allocation with fixed subcarrier assignments, based on which we next propose a low-complexity algorithm of jointly optimizing the subcarrier assignments and power allocations. Numerical results show that the performance of the proposed algorithm is near-optimal and the power consumption is significantly reduced compared with both the conventional OFDM-based frequency division multiple access and the static NOMA resource allocation schemes.; SCI(E); ARTICLE; lixunan@pku.edu.cn; chongl@qti.qualcomm.com; jinye@pku.edu.cn; 12; 2558-2561; 20
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/458205]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Li, Xunan,Li, Chong,Jin, Ye. Dynamic Resource Allocation for Transmit Power Minimization in OFDM-Based NOMA Systems[J]. IEEE COMMUNICATIONS LETTERS,2016.
APA	Li, Xunan,Li, Chong,&Jin, Ye.(2016).Dynamic Resource Allocation for Transmit Power Minimization in OFDM-Based NOMA Systems.IEEE COMMUNICATIONS LETTERS.
MLA	Li, Xunan,et al."Dynamic Resource Allocation for Transmit Power Minimization in OFDM-Based NOMA Systems".IEEE COMMUNICATIONS LETTERS (2016).