Performance of Dynamic Power and Channel Allocation for Downlink MC-NOMA Systems

被引：14

作者：

Liu, Fei ^{[1
]}

Petrova, Marina ^{[2
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Networked Syst, D-52072 Aachen, Germany

[2] KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, SE-10044 Stockholm, Sweden

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2020年 / 19卷 / 03期

关键词：

Silicon carbide; Multiplexing; NOMA; Decoding; Downlink; Resource management; Interference; Non-orthogonal multiple access; dynamic power and channel allocation; multi-channel transmission; performance analysis; NONORTHOGONAL MULTIPLE-ACCESS; 5G SYSTEMS; CHALLENGES;

D O I：

10.1109/TWC.2019.2955940

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：

In this paper, we develop an analytical model for the performance analysis of dynamic power and channel allocation (DPCA) in downlink multi-channel non-orthogonal multiple access (MC-NOMA) systems. To make the performance analysis tractable, we first relax the condition in the optimization problem of DPCA by assuming an ideal MC-NOMA system in which an arbitrary number of users can be multiplexed per subchannel. We use the basic decomposition method to solve the optimal DPCA for this problem and design a low-complexity algorithm for inter-channel power allocation. Then, based on the derivation of this optimal DPCA solution, we analyze its data rate performance and prove that it is an upper bound for practical MC-NOMA systems in which the number of multiplexed users per subchannel is limited. The simulation results verify our analysis of the upper bound performance and confirm that using its analytical results for data rate estimation in practical MC-NOMA systems has high accuracy under different system configurations. In addition, we study the influence of multi-user and multi-channel diversities on the performance of MC-NOMA, serving as a guideline for its deployment and optimization in practice.

引用

页码：1650 / 1662

页数：13

共 29 条

[1] Dynamic User Clustering and Power Allocation for Uplink and Downlink Non-Orthogonal Multiple Access (NOMA) Systems [J].

Ali, Md Shipon ;

Tabassum, Hina ;

Hossain, Ekram .

IEEE ACCESS, 2016, 4 :6325-6343

[2]

[Anonymous], 1998, J. Integral Equations Appl., DOI DOI 10.1216/JIEA/1181075664

[3]

[Anonymous], WIRELESS COMMUNICATI

[4]

[Anonymous], 36214 TS 3GPP

[5]

[Anonymous], 2019, Tech. Rep.

[6]

[Anonymous], EE364B STANF U

[7]

Benjebbour A, 2013, I S INTELL SIG PROC, P770, DOI 10.1109/ISPACS.2013.6704653

[8] The Requirements, Challenges, and Technologies for 5G of Terrestrial Mobile Telecommunication [J].

Chen, Shanzhi ;

Zhao, Jian .

IEEE COMMUNICATIONS MAGAZINE, 2014, 52 (05) :36-43

[9]

Dai LL, 2015, IEEE COMMUN MAG, V53, P74, DOI 10.1109/MCOM.2015.7263349

[10] Sub-Channel Assignment, Power Allocation, and User Scheduling for Non-Orthogonal Multiple Access Networks [J].

Di, Boya ;

Song, Lingyang ;

Li, Yonghui .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2016, 15 (11) :7686-7698

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