多载波多用户下行NOMA系统的资源分配算法

严杰; 宋荣方

doi:10.11959/j.issn.1000-0801.2019230

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多载波多用户下行NOMA系统的资源分配算法

研究与开发 | 更新时间：2024-06-05

- 多载波多用户下行NOMA系统的资源分配算法
- Resource allocation algorithm for the downlink of multi-carrier and multi-user NOMA systems
- 电信科学 2019年35卷第11期页码：1-8
- 作者机构：
- 作者简介：
  
  [ "严杰（1995- ），男，南京邮电大学通信与信息工程学院硕士生，主要研究方向为移动通信与无线技术" ]
  [ "宋荣方（1964- ），男，南京邮电大学江苏省通信与网络技术工程研究中心教授、博士生导师，主要研究方向为宽带无线通信" ]
- 基金信息：
  
  江苏省科技项目“MIMO-NOMA巨连接系统功率最小化预编码新方法”;Science and Technology Project of Jiangsu Province “A New Precoding Method for Power Minimization of MimoNoma Giant Connection System”(BK20181392)
- DOI：10.11959/j.issn.1000-0801.2019230
  中图分类号： TN929.5
- 网络出版日期：2019-11，
  
  纸质出版日期：2019-11-20
- 稿件说明：
移动端阅览
严杰, 宋荣方. 多载波多用户下行NOMA系统的资源分配算法[J]. 电信科学, 2019,35(11):1-8.

Jie YAN, Rongfang SONG. Resource allocation algorithm for the downlink of multi-carrier and multi-user NOMA systems[J]. Telecommunications science, 2019, 35(11): 1-8.
严杰, 宋荣方. 多载波多用户下行NOMA系统的资源分配算法[J]. 电信科学, 2019,35(11):1-8. DOI： 10.11959/j.issn.1000-0801.2019230.

Jie YAN, Rongfang SONG. Resource allocation algorithm for the downlink of multi-carrier and multi-user NOMA systems[J]. Telecommunications science, 2019, 35(11): 1-8. DOI： 10.11959/j.issn.1000-0801.2019230.

摘要

非正交多址接入技术作为5G的候选技术之一受到了广泛关注。研究了以系统吞吐量优化为目标的多载波多用户NOMA系统下行链路的资源分配问题。在该问题的求解中，为了提高系统的吞吐量，子载波间采用线性注水算法，叠加用户间采用分数阶功率分配算法。同时，考虑了远近用户数目不等场景下能够调度更多的用户，在NOMA传输方案设计中引入时分的概念，将整个时间段t分为两个时隙，在不同时隙内实现不同远近用户分组的动态配对方案，从而在保证用户公平性的基础上，充分利用子信道资源，实现系统吞吐量的优化。仿真结果表明，对比于传统NOMA和OFDMA，提出的方法可以在相同的发射功率情况下传输更多的比特数。

Abstract

Non-orthogonal multiple access (NOMA) technology had received considerable attention as a candidate technology for 5G cellular systems.The resource allocation problem in multi-carrier and multi-user downlink NOMA systems were studied with the goal of optimizing system throughput.In the solution of the problem

the linear water-filling power allocation was used between subcarriers as the fractional transmit power allocation algorithm was used between the superposed users

so that system throughput could be improved.Meanwhile

the concept of time slot was adopted in the design of NOMA transmission scheme

in order to be able to schedule more users in the scenario where the number of cellcenter users and celledge users were not equal.The whole time period was divided into two time slots.On the basis of ensuring the fairness of users

different user pairing groups were implemented in different time slots so as to fully utilizing the entire resource to improve system throughput.The simulation results show that this method can transmit more bits under the same transmit power comparing with traditional non-orthogonal multiple access(NOMA) and OFDMA.

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references

MODI H , GOHIL A , PATEL S K . 5G technology of mobile communication:a survey [C ] // 2013 International Conference on Intelligent Systems and Signal Processing (ISSP)，March 1-2,2013,Gujarat,India . Piscataway:IEEE Press , 2013 .

CHIH-LIN I , ROWELL C , HAN S , et al . Toward green and soft:a 5G perspective [J ] . IEEE Communications Magazine , 2014 , 52 ( 2 ): 66 - 73 . WOS:000331904900008 WOS:000331904900008

YUAN Y , ZHAO X . 5G:vision,scenarios and enabling technologies [J ] . ZTE Communications , 2015 ( 1 ): 3 - 10 .

DAI X , ZHANG Z , BAI B , et al . Pattern division multiple access:anew multiple access technology for 5G [J ] . IEEE Wireless Communications , 2018 , 25 ( 2 ): 54 - 60 . DOI: 10.1109/MWC.2018.1700084 http://doi.org/10.1109/MWC.2018.1700084 https://ieeexplore.ieee.org/document/8352623/ https://ieeexplore.ieee.org/document/8352623/

WANG Q Y , XIE P R , XIONG S K , et al . Key technology and standardization progress for 5G [J ] . Telecommunications Science , 2017 , 33 ( 11 ):112.

QI B , LIN L , SHAN Y , et al . Non-orthogonal multiple access technology for 5G systems [J ] . Telecommunications Science , 2015 . DOI: 10.1126/science.aaz9326 http://doi.org/10.1126/science.aaz9326 https://www.ncbi.nlm.nih.gov/pubmed/31831654 https://www.ncbi.nlm.nih.gov/pubmed/31831654

LI M L . Performance analysis and optimization of cooperative spectrum sensing with relay [J ] . Journal on Communications , 2013 , 32 ( 2 ): 53 - 60 .

DING Z , FAN P , POOR H V . Random beamforming in millimeter-wave NOMA networks [J ] . IEEE Access , 2016 , 5 ( 99 ): 7667 - 7681 . DOI: 10.1109/Access.6287639 http://doi.org/10.1109/Access.6287639 https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639 https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

NAIN G , DAS S S , CHATTERJEE A . Low complexity user selection with optimal power allocation in downlink NOMA [J ] . IEEE Wireless Communications Letters , 2017 :1.

BENJEBBOUR A , LI A , SAITO Y , et al . System-level performance of downlink NOMA for future LTE enhancement [C ] // Globecom Workshops,December 9-13,2013,Atlanta,GA,USA . Piscataway:IEEE Press , 2014 .

DONG-MEI Z . Linear water-filling power allocation algorithm in OFDMA system [J ] . Journal of Electronics ＆ Information Technology , 2007 , 29 ( 6 ): 1286 - 1289 .

SAITO K , BENJEBBOUR A , KISHIYAMA Y , et al . Performance and design of SIC receiver for downlink NOMA with open-loop SU-MIMO [C ] // IEEE International Conference on communication Workshop,June 8-12,2015,London,UK . Piscataway:IEEE Press , 2015 .

BENJEBBOUR A , SAITO Y , KISHIYAMA Y , et al . Concept and practical considerations of non-orthogonal multiple access (NOMA) for future radio access [C ] // 2013 International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS) ,November 12-15,2013,Naha,Japan . Piscataway:IEEE Press , 2013 .

CHANG Z , HOU X , GUO X , et al . Energy efficient resource allocation for secure OFDMA relay systems with eavesdropper [C ] // IEEE International Conference on Communications,May 22-27,2016,Kuala Lumpur,Malaysia . Piscataway:IEEE Press , 2016 .

ZHANG X , CHEN H , JIANG L , et al . Inter-cell interference coordination based on softer frequency reuse in OFDMA cellular systems [C ] // International Conference on Neural Networks ＆Signal Processing,June 7-11,2008,Nanjing,China . Piscataway:IEEE Press , 2008 .

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