低自干扰的电力无线专网高可靠性规划方法
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摘要
针对电力无线通信在规划中存在的问题,为更好地服务智能电网和开展分时长期演进(TDLTE)技术在电力通信等领域的应用研究,提出了一种低自干扰的电力无线专网高可靠性规划方法。通过利用基站信号的重叠覆盖提高基站或末端回传网络故障时用户业务存活的能力。通过对重叠的小区进行合并,避免了重叠小区的同频干扰,再通过优化组织基站的部署,在基站数量相同的情况下,增加了重叠覆盖时的平均站间距离,在保证网络性能的前提下提高了网络可靠性。该规划方案解决了现有技术的基站间同频重叠覆盖将导致相互干扰,异频重叠覆盖可能受到频率资源制约无法实施的问题。
Due to the problems in the planning of electric power wireless communication,and in order to serve the smart grid better and carry out the application of time division long term evolution(TD-LTE)technology in the power communication fields and other fields,a high reliability planning method with low self-interference in power wireless special network is proposed.It improves the survival ability of user service when the base station or the terminal return network is out of order by using the overlapping coverage of base station signals.The overlapping cells are merged to avoid the same frequency interference.By optimizing the organization deployment of the base station and in the case of the same number of base stations,the average inter station distance of overlapping coverage increases,and the network reliability is improved on the premise of ensuring network performance.The scheme solves the mutual interference of the same frequency caused by the overlapping coverage between the base stations of the existing technology.It also solves the problems of the frequency resource constraints,which may be unable to implement the different frequency overlapping coverage.
Due to the problems in the planning of electric power wireless communication,and in order to serve the smart grid better and carry out the application of time division long term evolution(TD-LTE)technology in the power communication fields and other fields,a high reliability planning method with low self-interference in power wireless special network is proposed.It improves the survival ability of user service when the base station or the terminal return network is out of order by using the overlapping coverage of base station signals.The overlapping cells are merged to avoid the same frequency interference.By optimizing the organization deployment of the base station and in the case of the same number of base stations,the average inter station distance of overlapping coverage increases,and the network reliability is improved on the premise of ensuring network performance.The scheme solves the mutual interference of the same frequency caused by the overlapping coverage between the base stations of the existing technology.It also solves the problems of the frequency resource constraints,which may be unable to implement the different frequency overlapping coverage.
引文
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[10]孙伟,陆伟,李奇越,等.智能电网中无线传感器网络通信链路可靠性置信区间预测[J].电力系统自动化,2017,41(4):29-34.DOI:10.7500/AEPS20160627011.SUN Wei,LU Wei,LI Qiyue,et al.Reliability confidence interval prediction for communication link of wireless sensor network in smart grid[J].Automation of Electric Power Systems,2017,41(4):29-34.DOI:10.7500/AEPS20160627011.
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[13]张静雷.超密集小基站系统中的多点协作干扰抑制策略研究[D].合肥:中国科学技术大学,2016.ZHANG Jinglei.Research on coordinated multi-point interference suppression strategies in ultra-dense small cell systems[D].Hefei:University of Science and Technology of China,2016.
[14]BJOMSON E,ZAKHOUR R,et al.Cooperative multicellular precoding:rare region characterization and distributed strategies with instantaneous and statistical CSI[J].IEEE Transactions on Signal Processing,2010,58(8):4298-4310.
[15]GARCIA V,ZHOU Y,SHI J.Coordinated multipoint transmission in dense cellular networks with user-centric adaptive clustering[J].IEEE Transactions on Wireless Communications,2014,13(8):4297-4308.
[16]SHI Y,ZHANG J,LETAIEF K B,et al.Large-scale convex optimization for ultra-dense cloud-ran[J].IEEE Wireless Communications,2015,22(3):84-91.
[17]管文明,廖梦石.LTE小区合并技术及其在现网的应用实践[J].电信技术,2015(11):85-88.GUAN Wenming,LIAO Mengshi.LTE cell merging technology and its application in current network[J].Telecommunication Technology,2015(11):85-88.
[18]GEORGE K.Green network planning of single frequency networks[J].IEEE Transactions on Broadcasting,2010,56(4):541-550.
[19]CHEN H,ZHONG X,WANG J.Optimal deployment of assisting cells for multimedia push in single frequency network[J].Journal of Communications&Networks,2017,19(2):114-123.
[20]3GPP.TS 36.211LTE physical channels and modulation[S].3GPP Technical Specification,2017.
[21]LI C,WEN C,BIN W,et al.System-level simulation methodology and platform for mobile cellular systems[J].IEEE Communications Magazine,2011,49(7):148-155.
[22]张萌.无线异构网络中共存、协作和融合问题的研究[D].北京:北京邮电大学,2017.ZHANG Meng.On the coexistence,coordination and convergence of heterogeneous wireless networks[D].Beijing:Beijing University of Posts and Telecommunications,2017.
[2]姚继明,郭经红,张浩,等.基于功率优先级的电力LTE专网随机接入技术[J].电力系统自动化,2016,40(10):127-131.DOI:10.7500/AEPS20150820005.YAO Jiming,GUO Jinghong,ZHANG Hao,et al.Random access technology of electric dedicated LTE network based on power priority[J].Automation of Electric Power Systems,2016,40(10):127-131.DOI:10.7500/AEPS20150820005.
[3]曹津平,刘建明,李祥珍.面向智能配用电网络的电力无线专网技术方案[J].电力系统自动化,2013,37(11):76-80.CAO Jinping,LIU Jianming,LI Xiangzhen.A power wireless broadband technology scheme for smart power distribution and utilization networks[J].Automation of Electric Power Systems,2013,37(11):76-80.
[4]于佳,刘金锁,蔡世龙.TD-LTE电力无线专网性能仿真[J].广东电力,2017,30(1):39-45.YU Jia,LIU Jinsuo,CAI Shilong.Performance simulation on TD-LTE electric power wireless private network[J].Guangdong Electric Power,2017,30(1):39-45.
[5]曹津平,刘建明.一种应用于电力无线专网的两级双门限本地频谱感知技术研究[J].中国电机工程学报,2015,35(10):2471-2479.CAO Jinping,LIU Jianming.A two-stage double-threshold local spectrum sensing algorithm research for the power private communication network[J].Proceedings of the CSEE,2015,35(10):2471-2479.
[6]吕晨光.TD-LTE无线网络规划研究[D].北京:北京邮电大学,2012.LV Chenguang.Research on TD-LTE wireless network planning for a region[D].Beijing:Beijing University of Posts and Telecommunications,2012.
[7]宋亚南.密集市区LTE网络规划与设计研究[D].南京:南京邮电大学,2016.SONG Yanan.Research on dense urban LTE network planning and designing[D].Nanjing:Nanjing University of Posts and Telecommunications,2016.
[8]电力无线专网规划设计导则:Q/GDW 11664—2017[S].北京:中国电力出版社,2017.Technical guidelines for conception planning of electric wireless private network:Q/GDW 11664—2017[S].Beijing:China Electric Power Press,2017.
[9]严佳梅,许剑冰,倪明,等.通信系统中断对电网广域保护控制系统的影响[J].电力系统自动化,2016,40(5):17-24.DOI:10.7500/AEPS20150820004.YAN Jiamei,XU Jianbing,NI Ming,et al.Impact of communication system interruption on power system wide area protection and control system[J].Automation of Electric Power Systems,2016,40(5):17-24.DOI:10.7500/AEPS20150820004.
[10]孙伟,陆伟,李奇越,等.智能电网中无线传感器网络通信链路可靠性置信区间预测[J].电力系统自动化,2017,41(4):29-34.DOI:10.7500/AEPS20160627011.SUN Wei,LU Wei,LI Qiyue,et al.Reliability confidence interval prediction for communication link of wireless sensor network in smart grid[J].Automation of Electric Power Systems,2017,41(4):29-34.DOI:10.7500/AEPS20160627011.
[11]韩江洪,段章领.基于动态规划的矿井无线再编程最优基站选址算法[J].通信学报,2017,38(3):7-15.HAN Jianghong,DUAN Zhangling.Optimal base station selection based on dynamic programming for reprogramming in mine wireless network[J].Journal on Communications,2017,38(3):7-15.
[12]HAMZA A S,KHALIFA S S,HAMZA H S,et al.A survey on inter-cell interference coordination techniques in OFDMA based cellular networks[J].IEEE Communications Surveys&Tutorials,2013,15(4):1642-1670.
[13]张静雷.超密集小基站系统中的多点协作干扰抑制策略研究[D].合肥:中国科学技术大学,2016.ZHANG Jinglei.Research on coordinated multi-point interference suppression strategies in ultra-dense small cell systems[D].Hefei:University of Science and Technology of China,2016.
[14]BJOMSON E,ZAKHOUR R,et al.Cooperative multicellular precoding:rare region characterization and distributed strategies with instantaneous and statistical CSI[J].IEEE Transactions on Signal Processing,2010,58(8):4298-4310.
[15]GARCIA V,ZHOU Y,SHI J.Coordinated multipoint transmission in dense cellular networks with user-centric adaptive clustering[J].IEEE Transactions on Wireless Communications,2014,13(8):4297-4308.
[16]SHI Y,ZHANG J,LETAIEF K B,et al.Large-scale convex optimization for ultra-dense cloud-ran[J].IEEE Wireless Communications,2015,22(3):84-91.
[17]管文明,廖梦石.LTE小区合并技术及其在现网的应用实践[J].电信技术,2015(11):85-88.GUAN Wenming,LIAO Mengshi.LTE cell merging technology and its application in current network[J].Telecommunication Technology,2015(11):85-88.
[18]GEORGE K.Green network planning of single frequency networks[J].IEEE Transactions on Broadcasting,2010,56(4):541-550.
[19]CHEN H,ZHONG X,WANG J.Optimal deployment of assisting cells for multimedia push in single frequency network[J].Journal of Communications&Networks,2017,19(2):114-123.
[20]3GPP.TS 36.211LTE physical channels and modulation[S].3GPP Technical Specification,2017.
[21]LI C,WEN C,BIN W,et al.System-level simulation methodology and platform for mobile cellular systems[J].IEEE Communications Magazine,2011,49(7):148-155.
[22]张萌.无线异构网络中共存、协作和融合问题的研究[D].北京:北京邮电大学,2017.ZHANG Meng.On the coexistence,coordination and convergence of heterogeneous wireless networks[D].Beijing:Beijing University of Posts and Telecommunications,2017.