5G非正交接入系统PF调度策略研究
|
摘要
为了应对未来通信系统在吞吐量和接入数量等方面更高的需求,非正交多址接入(NOMA)技术作为5G的候选技术得到广泛的关注。在LTE中广泛使用的比例公平(PF)调度策略,可以在用户接入公平性和吞吐量之间达到良好的折中,已被考虑在NOMA系统中使用。主要分析了基于PF调度准则的NOMA系统的实现原理和基本的调度流程,然后对比分析了NOMA多用户调度中的用户MCS选择和功率分配算法的实现方式以及所存在的问题。最后进行NOMA链路仿真分析,给出未来NOMA调度研究的主要方向。
In order to respond to the challenge of providing significantly higher system capacity in the upcoming decade,non-orthogonal multiple access(NOMA)has been investigated as one of the candidate multi-user access technologies for 5G. Proportional fair scheduling can be increased in the performance between system capacity and user fairness in LTE system,it had been considered for user in NOMA systems. It mainly analyzes the implementation principle and basic scheduling procedure of PF scheduling criterion in NOMA system,and then compares and analyzes the key technologies and existing problems of scheduling. Finally,the simulation results are verified and introduce the main research direction of future NOMA.
In order to respond to the challenge of providing significantly higher system capacity in the upcoming decade,non-orthogonal multiple access(NOMA)has been investigated as one of the candidate multi-user access technologies for 5G. Proportional fair scheduling can be increased in the performance between system capacity and user fairness in LTE system,it had been considered for user in NOMA systems. It mainly analyzes the implementation principle and basic scheduling procedure of PF scheduling criterion in NOMA system,and then compares and analyzes the key technologies and existing problems of scheduling. Finally,the simulation results are verified and introduce the main research direction of future NOMA.
引文
[1]5G Vision and Requirements[EB/OL].[2016-10-29].http://doc.mbalib.com/view/7fb300dec8f3617bbc4fedd4191c634c.html.
[2]LIU F,MAHONEN P,PETROVA M.Proportional fairness-based user pairing and power allocation for non-orthogonal multiple access[C]//IEEE,International Symposium on Personal,Indoor,and Mobile Radio Communications,IEEE,2015.
[3]BENJEBBOUR A,LI A,SAITO Y,et al.System-level performance of downlink NOMA for future LTE enhancements[C]//IEEE GLOBECOM Workshops,2013:66-70.
[4]3GPP TR 36.859 Study on Downlink Multiuser Superposition Transmission(MUST)for LTE[EB/OL].[2016-10-29].ftp://ftp.3gpp.org/.
[5]唐超.一种基于SIC的NOMA下行链路信号检测方法[J].邮电设计技术,2016(4):41-44.
[6]LIU S,ZHANG C,LYU G.User selection and power schedule for downlink non-orthogonal multiple access(NOMA)system[C]//IEEE International Conference on Communication Workshop,IEEE,2015.
[7]KANEKO M,YAMAURA H,KAJITA Y,et al.Fairness-Aware NonOrthogonal Multi-User Access With Discrete Hierarchical Modulation for 5G Cellular Relay Networks[J].Access IEEE,2015(3):1-1.
[8]张德坤.非正交多址系统功率分配及干扰消除算法研究[D].哈尔滨:哈尔滨工业大学,2015.
[9]SAITO Y,BENJEBBOUR A,KISHIYAMA Y,et al.System-level performance evaluation of downlink non-orthogonal multiple access(NOMA)[C]//2013 IEEE 24th Annual International Symposium on Personal,Indoor,and Mobile Radio Communications(PIMRC),2013:611-615.
[10]DING Z,FAN P,POOR V.Impact of User Pairing on 5G Non-Orthogonal Multiple Access Downlink Transmissions[J].IEEE Transactions on Vehicular Technology,2014,65(8).
[11]徐晋.非正交多址接入中的若干关键技术研究[D].北京:北京邮电大学,2015.
[12]CHEN S,PENG K,JIN H,et al.Analysis of outage capacity of NOMA:SIC vs.JD[J].Tsinghua Science and Technology,2016,21(5):538-543.
[13]TAKASHI S,TAKASHI D,HIROYUKI S.Efficient selection of user sets for downlink non-orthogonalmultiple access[C]//Personal,Indoor,and Mobile Radio Communications(PIMRC),2015 IEEE 26th Annual International Symposium on,2015:1062-1066.
[14]KAWSER M T,HAMID N I B,HASAN M N,et al.Downlink SNR to CQI Mapping for Different Multiple Antenna Techniques in LTE[J].International Journal of Information and Electronics Engineering,2012,2(5).
[15]Study on Network-Assisted Interference Cancellation and Suppression(NAIC)for LTE:3GPP TR 36.866[EB/OL].[2016-10-29].ftp://ftp.3gpp.org/.
[2]LIU F,MAHONEN P,PETROVA M.Proportional fairness-based user pairing and power allocation for non-orthogonal multiple access[C]//IEEE,International Symposium on Personal,Indoor,and Mobile Radio Communications,IEEE,2015.
[3]BENJEBBOUR A,LI A,SAITO Y,et al.System-level performance of downlink NOMA for future LTE enhancements[C]//IEEE GLOBECOM Workshops,2013:66-70.
[4]3GPP TR 36.859 Study on Downlink Multiuser Superposition Transmission(MUST)for LTE[EB/OL].[2016-10-29].ftp://ftp.3gpp.org/.
[5]唐超.一种基于SIC的NOMA下行链路信号检测方法[J].邮电设计技术,2016(4):41-44.
[6]LIU S,ZHANG C,LYU G.User selection and power schedule for downlink non-orthogonal multiple access(NOMA)system[C]//IEEE International Conference on Communication Workshop,IEEE,2015.
[7]KANEKO M,YAMAURA H,KAJITA Y,et al.Fairness-Aware NonOrthogonal Multi-User Access With Discrete Hierarchical Modulation for 5G Cellular Relay Networks[J].Access IEEE,2015(3):1-1.
[8]张德坤.非正交多址系统功率分配及干扰消除算法研究[D].哈尔滨:哈尔滨工业大学,2015.
[9]SAITO Y,BENJEBBOUR A,KISHIYAMA Y,et al.System-level performance evaluation of downlink non-orthogonal multiple access(NOMA)[C]//2013 IEEE 24th Annual International Symposium on Personal,Indoor,and Mobile Radio Communications(PIMRC),2013:611-615.
[10]DING Z,FAN P,POOR V.Impact of User Pairing on 5G Non-Orthogonal Multiple Access Downlink Transmissions[J].IEEE Transactions on Vehicular Technology,2014,65(8).
[11]徐晋.非正交多址接入中的若干关键技术研究[D].北京:北京邮电大学,2015.
[12]CHEN S,PENG K,JIN H,et al.Analysis of outage capacity of NOMA:SIC vs.JD[J].Tsinghua Science and Technology,2016,21(5):538-543.
[13]TAKASHI S,TAKASHI D,HIROYUKI S.Efficient selection of user sets for downlink non-orthogonalmultiple access[C]//Personal,Indoor,and Mobile Radio Communications(PIMRC),2015 IEEE 26th Annual International Symposium on,2015:1062-1066.
[14]KAWSER M T,HAMID N I B,HASAN M N,et al.Downlink SNR to CQI Mapping for Different Multiple Antenna Techniques in LTE[J].International Journal of Information and Electronics Engineering,2012,2(5).
[15]Study on Network-Assisted Interference Cancellation and Suppression(NAIC)for LTE:3GPP TR 36.866[EB/OL].[2016-10-29].ftp://ftp.3gpp.org/.