Uplink Non-Orthogonal Multiple Access With Statistical Delay Requirement: Effective Capacity, Power Allocation, and a Fairness

被引:10
作者
Zeng, Jie [1 ,2 ]
Xiao, Chiyang [3 ]
Wu, Teng [2 ,4 ]
Ni, Wei [5 ]
Liu, Ren Ping [6 ]
Guo, Y. Jay [6 ]
机构
[1] Beijing Inst Technol, Sch Cyberspace Sci & Technol, Beijing 100081, Peoples R China
[2] Tsinghua Univ, Beijing Nat Res Ctr Informat Sci & Technol, Beijing 100084, Peoples R China
[3] Honor Device Co Ltd, Beijing 100095, Peoples R China
[4] Chongqing Univ Posts & Telecommun, Sch Commun & Informat Engn, Chongqing 400065, Peoples R China
[5] Commonwealth Sci & Ind Res Org CSIRO, Epping, NSW 1710, Australia
[6] Univ Technol Sydney, Sch Elect & Data Engn, Sydney, NSW 2007, Australia
基金
中国国家自然科学基金;
关键词
NOMA; Delays; Quality of service; Resource management; Uplink; Transforms; Fading channels; Effective capacity; non-orthogonal multiple access (NOMA); power allocation; statistical delay quality-of-service (QoS); user fairness; MIMO-NOMA; RESOURCE-ALLOCATION; WIRELESS NETWORKS; DYNAMIC POWER; DOWNLINK; COMMUNICATION; OPTIMIZATION; PERFORMANCE; MAXIMIZATION; PERSPECTIVE;
D O I
10.1109/TWC.2022.3204265
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
The proliferation of delay-sensitive Internet-of Things (IoT) applications has ushered in a need for the statistical delay quality-of-service (QoS) guarantee for the applications. In this paper, we first derive an upper bound for the queuing delay violation probability (UB-QDVP) in uplink non-orthogonal multiple access (NOMA) by applying stochastic network calculus (SNC) to the Mellin transforms of service processes. A closed form asymptotic approximation of the UB-QDVP is developed by proving the asymptotic convergence of the Mellin transform and its finite-length truncations. Given the closed-form asymptotic UB-QDVP, we propose two power allocation schemes. The first scheme minimizes the transmit power of a NOMA user pair while guaranteeing the statistical delay QoS of the pair. The second maximizes the a-utility function of the effective capacity of the user pair, striking a balance between the energy efficiency and user fairness of uplink NOMA systems. Simulations validate the UB-QDVP and show the superiority of the proposed schemes to conventional power allocation schemes in terms of energy efficiency and fairness.
引用
收藏
页码:1298 / 1313
页数:16
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