基于跨层策略的60GHz脉冲多用户通信系统性能分析
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摘要
由于具备免许可、强方向性、高系统容量和吉比特的高传输速率等优势,60GHz频段被列为5G新空口(newradio,NR)的候选频段之一。在5G超密集组网场景中,网络节点之间距离的降低引起的节点开关转换的随机性会导致严重的多址干扰、资源失配问题。对此,基于跨层协同设计的思想,提出了一种基于公平性的资源调度策略,在基于TH-PAM(time hopping pulse amplitude modulation)的60GHz脉冲无线通信系统中对该策略的多址接入性能进行仿真分析。仿真结果表明,相比采用纯物理层优化算法的系统,采用该策略的多址接入系统表现出更强的公平性、更低的系统误码率,但需要额外增加发射功率来满足同等通信系统覆盖范围的要求,即在系统的能量与公平性之间存在一定的折中,可用于指导实际通信系统的构架与布设。
Due to the advantages of license-free, strong directionality, high system capacity, and high transmission rate of Gbit/s, 60GHz band is listed as one of the candidate bands for new radios(new radio). In 5G ultra-dense networking scenario, the randomness of node switching caused by the decrease of the distance between network nodes may cause severe multiple access interference and resource mismatch problems. In this regard, based on the concept of cross-layer collaborative design, a resource scheduling strategy based on fairness was proposed. The multiple access performance of the strategy was simulated in a 60GHz pulsed wireless communication system based on TH-PAM(time hopping pulse amplitude modulation). Simulation results show that compared with the system with pure physical layer optimization algorithm, the multiple access system which adopts this strategy shows stronger fairness and lower system error rate, but it needs increase the transmission power to meet the requirements of the coverage of the equivalent communication system. That is, there is a certain trade-off between the energy and fairness of the system, which can be used to guide the structure and deployment of the actual communication system.
Due to the advantages of license-free, strong directionality, high system capacity, and high transmission rate of Gbit/s, 60GHz band is listed as one of the candidate bands for new radios(new radio). In 5G ultra-dense networking scenario, the randomness of node switching caused by the decrease of the distance between network nodes may cause severe multiple access interference and resource mismatch problems. In this regard, based on the concept of cross-layer collaborative design, a resource scheduling strategy based on fairness was proposed. The multiple access performance of the strategy was simulated in a 60GHz pulsed wireless communication system based on TH-PAM(time hopping pulse amplitude modulation). Simulation results show that compared with the system with pure physical layer optimization algorithm, the multiple access system which adopts this strategy shows stronger fairness and lower system error rate, but it needs increase the transmission power to meet the requirements of the coverage of the equivalent communication system. That is, there is a certain trade-off between the energy and fairness of the system, which can be used to guide the structure and deployment of the actual communication system.
引文
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[3]HANSEN C J.WiGiG:multi-gigabit wireless communications in the 60 GHz band[J].IEEE Wireless Communications,2011,18(6):6-7.
[4]WANG J,LIANG X,SHI W,et al.Fingerprinting localization based on 60GHz impulse radio[C]//IEEE Pacific RIM Conference on Communications,Computers and Signal Processing,Sept 16-19,2015,Gwangju,Korea.Piscataway:IEEE Press,2015.
[5]PARK S,SHIN Y,SONG P.LTE-advanced mobility performance enhancement in dense small cell environment[C]//2013IEEE International Conference on ICT Convergence(ICTC),October 14-16,2013,Jeju Island,South Korea.Piscataway:IEEE Press,2013:262-267.
[6]岳光荣,陈雷,徐廷生,等.60 GHz高速率短距离通信系统综述[J].无线电通信技术,2015(5):1-6.YUE G R,CHEN L,XU T S,et al.Overview of 60 GHz high rate short distance communication system[J].Radio Communications Technology,2015(5):1-6.
[7]李娜.60 GHz脉冲无线通信系统的性能研究[D].青岛:中国海洋大学,2012.LI N.Performance study of 60 GHz pulse wireless communication system[D].Qingdao:Ocean University of China,2012.
[8]ZHANG X,SHI W,ZHU W.The design and performance analysis of inter-chip wireless communication system in instrument based on 60 GHz[C]//IEEE International Conference on Electronic Measurement&Instruments,July 16-18,2015,Qingdao,China.Piscataway:IEEE Press,2015:813-818.
[9]张永斌,李学华,姚勃旭.60 GHz脉冲无线通信系统的TH-PAM多址接入方案[J].电信科学,2016,32(4):17-23.ZHANG Y B,LI X H,YAO B X.60 GHz pulse wireless communication system with TH-PAM multiple access scheme[J].Telecommunication Science,2016,32(4):17-23.
[10]戚星宇,刘芫健,李双德.室内办公环境60 GHz频段毫米波接收功率仿真和分析[J].微型机与应用,2016,35(2):63-65,72.QI X Y,LIU Y J,LI S D.Simulation and annlysis of millimeter-wave received power of indoor office environment[J].Network and Communication,2016,35(2):63-65,72.
[11]IMT-2020(5G)Promotion Group.The white paper of 5G wireless technology architecture[R].2015.
[12]殷俊.LTE系统跨层资源分配算法研究[D].南京:南京邮电大学,2009.YIN J.Research on cross layer resource allocation algorithm for LTE system[D].Nanjing:Nanjing University of Posts and Telecommunications,2009.
[13]GARCIA G E,MUPPIRISETTY L S,WYMEERSCH H.On the trade-off between accuracy and delay in UWB navigation[J].IEEE Communications Letters,2013,17(1):39-42.
[14]SHEN C,TEKIN C,SCHAAR M V D.A non-stochastic learning approach to energy efficient mobility management[J].IEEEJournal on Selected Areas in Communications,2016,PP(99):1.
[15]CHEN X Q.Research on ultra wide-band indoor location system[C]//2012 International Conference on Industrial Control and Electronics Engineering,November 15-17,2012,Xi’an,China.[S.l.:s.n.],2012:871-873.
[16]WANG X,GIANNAKIS G B.Resource allocation for wireless multiuser OFDM networks[J].IEEE Transactions on Information Theory,2011,57(7):4359-4372.
[17]GARCIA G E,MUPPIRISETTY L S,WYMEERSCH H.On the trade-off between accuracy and delay in UWB navigation[J].IEEE Communications Letters,2013,17(1):39-42.
[18]何晓哲.60 GHz毫米波无线通信系统调制及信道容量分析[D].青岛:中国海洋大学,2011.HE X Z.60 GHz millimeter-wave wireless communication system:modulation and capacity research[D].Qingdao:Ocean University of China,2011.
[19]MCELIECE R J.信息论与编码理论[M].李斗,殷悦,罗燕,等译.北京:电子工业出版社,2004.MCELIECE R J.Information theory and coding[M].Translated by LI D,YIN Y,LUO Y,et al.Beijing:Electronic Industry Press,2004.