Buffer-aided cooperative NOMA with power transfer

被引：0
|
作者：
Yang L. [1 ]
Zhao L. [1 ]
Zhou Y. [1 ]
He B. [1 ]
Chen J. [1 ]
机构：
[1] School of Telecommunication Engineering, Xidian University, Xi’an
来源：
Tongxin Xuebao/Journal on Communications | 2023年 / 44卷 / 06期
基金：
中国国家自然科学基金;
关键词：
buffer-aided; cooperative non-orthogonal multiple access; energy harvesting; user scheduling;
D O I：
10.11959/j.issn.1000-436x.2023107
中图分类号：
学科分类号：
摘要：
To improve the throughput of multiuser simultaneous wireless information and power transfer systems, a buffer-aided cooperative non-orthogonal multiple access scheme with power transfer was designed to maximize the average throughput under the constraints of average/peak power, user’s rate, and the buffer stability. To reduce the optimization complexity, the Lyapunov’s method was introduced to convert the long-term average optimization problem into a series of time-discrete subproblems, and an adaptive transmission and resource allocation optimization algorithm was proposed, where the working mode, the user scheduling and the power allocation were dynamically optimized according to the time-varying channel/buffer state. Simulation results demonstrate that compared with the existing schemes, the proposed scheme can significantly enhance the average throughput whilst achieving the tradeoff between the delay and throughput. © 2023 Editorial Board of Journal on Communications. All rights reserved.
引用
收藏
页码：77 / 89
页数：12
相关论文
共 27 条
  • [1] DAI L L, WANG B C, YUAN Y F, Et al., Non-orthogonal multiple access for 5G: solutions, challenges, opportunities, and future research trends, IEEE Communications Magazine, 53, 9, pp. 74-81, (2015)
  • [2] DING Z G, YANG Z, FAN P Z, Et al., On the performance of non-orthogonal multiple access in 5G systems with randomly deployed users, IEEE Signal Processing Letters, 21, 12, pp. 1501-1505, (2014)
  • [3] ZHANG C Q., Initial analysis of NOMA for 5G mobile networks, Designing Techniques of Posts and Telecommunications, 11, pp. 49-53, (2015)
  • [4] JIAO R C, DAI L L, ZHANG J Y, Et al., On the performance of NOMA-based cooperative relaying systems over Rician fading channels, IEEE Transactions on Vehicular Technology, 66, 12, pp. 11409-11413, (2017)
  • [5] XU P, YANG Z, DING Z G, Et al., Optimal relay selection schemes for cooperative NOMA, IEEE Transactions on Vehicular Technology, 67, 8, pp. 7851-7855, (2018)
  • [6] SONG C W, LIU D, LI E Y, Et al., Reactive relay selection strategy for NOMA systems, Journal of Xidian University (Natural Science), 48, 3, pp. 56-62, (2021)
  • [7] LUO S, TEH K C., Adaptive transmission for cooperative NOMA system with buffer-aided relaying, IEEE Communications Letters, 21, 4, pp. 937-940, (2017)
  • [8] KOCHI J, NAKAI R, SUGIURA S., Hybrid NOMA/OMA broadcasting-and-buffer-state-based relay selection, IEEE Transactions on Vehicular Technology, 70, 2, pp. 1618-1631, (2021)
  • [9] HUANG C, CHEN G J, GONG Y, Et al., Buffer-aided relay selection for cooperative hybrid NOMA/OMA networks with asynchronous deep reinforcement learning, IEEE Journal on Selected Areas in Communications, 39, 8, pp. 2514-2525, (2021)
  • [10] DING Z G, PENG M G, POOR H V., Cooperative non-orthogonal multiple access in 5G systems, IEEE Communications Letters, 19, 8, pp. 1462-1465, (2015)
123