Optimal User Clustering and Power Allocation in NOMA Systems

被引：3

作者：

Ta Viet Tai ^{[1
,2
]}

Nguyen Thi Xuan Uyen ^{[1
,2
]}

Dang Le Khoa ^{[1
,2
]}

机构：

[1] VNUHCM Univ Sci, Ho Chi Minh City, Vietnam

[2] Vietnam Natl Univ, Ho Chi Minh City, Vietnam

来源：

2022 INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES FOR COMMUNICATIONS, ATC | 2022年

关键词：

Non-orthogonal multiple access; optimal power allocation; optimizing user clustering; quality of service; signal-to-noise ratio; sum rate;

D O I：

10.1109/ATC55345.2022.9943029

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Non-orthogonal multiple access (NOMA) is one of the proposed techniques which improve transfer speeds. There are two primary types of NOMA: code domain and power domain. This study focuses on the power domain. The benefit of power-domain NOMA depends on how the users are clustered and the power levels of users in the same cluster. This study aims to propose the model using the two-user pairing method and three users together, combining the threshold signal-to-noise ratio (SNR) levels to decide on two or three pairings to ensure the quality of service (QoS) for users. Besides, this model consider the optimal power allocation (PA) for each user in the cluster to the maximum sum rate with QoS constraints. Simulation results show the benefits of optimizing user clustering and power allocation with QoS constraints.

引用

页码：350 / 355

页数：6

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