Novel opportunistic cooperative multicast scheme for NOMA

Yin LU; Jirong CHEN; Haowei BIAN; Hongbo ZHU

doi:10.11959/j.issn.1000-436x.2020239

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Novel opportunistic cooperative multicast scheme for NOMA

Papers | 更新时间：2024-06-05

- Novel opportunistic cooperative multicast scheme for NOMA
- Journal on Communications Vol. 41, Issue 11, Pages: 141-150(2020)
- 作者机构：
  
  1. 南京邮电大学物联网学院，江苏南京 210003
  2. 南京邮电大学江苏省无线通信重点实验室，江苏南京 210003
  3. 南京邮电大学教育部泛在网络健康服务系统工程研究中心，江苏南京 210003
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61271236);The National Natural Science Foundation of China(61871446);The Major Project of Natural Science Foundation of the Jiangsu Higher Education Institutions of China(17KJA510004)
- DOI：10.11959/j.issn.1000-436x.2020239
  CLC： TN929.5
- Online First：2020-11，
  
  Published：25 November 2020
- 稿件说明：
移动端阅览
Yin LU, Jirong CHEN, Haowei BIAN, et al. Novel opportunistic cooperative multicast scheme for NOMA[J]. Journal on Communications, 2020, 41(11): 141-150.
DOI：

Yin LU, Jirong CHEN, Haowei BIAN, et al. Novel opportunistic cooperative multicast scheme for NOMA[J]. Journal on Communications, 2020, 41(11): 141-150. DOI： 10.11959/j.issn.1000-436x.2020239.

摘要

将认知无线电技术应用于非正交多址接入（NOMA）协作多播系统，研究了将用户作为中继的可行性，提出了一种带参数的多播候选集的二级协作传输方案。该方案先由基数q选出候选集，再根据主用户和候选次用户之间的信道增益选出最佳的转发节点。仿真结果表明，通过合理选择构造参数 q，所提方案在减少次用户分集增益损失的同时，能够大幅提高主用户的分集增益。在N个多播用户组成的NOMA协作多播场景中，将主用户的分集增益从2提升到min(N-q+2

q+1)，满足主用户可靠性的要求。

Abstract

The cognitive radio technology was applied to non-orthogonal multiple access (NOMA) cooperative multicast system

the feasibility of using users as relays was studied

and a two-level cooperative transmission scheme with parameterized multicast candidate sets was proposed.Specifically

the scheme first selected the candidate set according to the cardinality q

and then selected the best forwarding node based on the channel gain between the primary users and the candidate secondary users.Simulation results show that

through the reasonable selection of the cardinality q

the proposed scheme can greatly reduce the diversity gain of the secondary users while simultaneously increasing the diversity gain of the primary users.In NOMA cooperative multicast scenario composed of N multicast users

the proposed scheme can increase the diversity gain of the primary users from 2 to min(N-q+2

q+1) to meet their reliability requirements.

关键词

Keywords

references

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