基于USRP的NB-IoT/FSK异构物联网系统实现
|
摘要
窄带物联网(NB-IoT)技术因具备广域覆盖、低功耗、海量用户接入的优点,成为当前广域物联网的主流技术,但单一的NB-IoT组网模式在某些极端功率受限环境(如水表井、地下车库等深度覆盖区域)仍会出现覆盖不足以及终端耗电大的问题。针对传统应用场景下的NB-IoT单独组网方式的不足,提出一种NB-IoT/FSK混合异构组网广域物联网架构,该架构能够借助频移键控(FSK)调制的较低解调门限进一步提高混合网络的覆盖范围,降低最末端终端节点功耗,从而实现深度覆盖下更多终端用户接入能力。使用通用软件无线电外设(USRP)平台搭建了该异构网演示系统,模拟了物联网智能水表的应用场景,仿真与实际的简单外场测试验证证明了该异构组网架构的可行性与优良性能。
With the advantages of wide coverage, low power consumption, massive user access,Narrow Band Internet of Things(NB-IoT) has become one of the mainstream technologies of wide area IoT.Nevertheless, a single NB-IoT network in the environment with power extremely constrained(such as wells,underground garage in demand of deep coverage) will still have problems of weak coverage and large power consumption of end nodes. Due to the shortage of NB-IoT single network in traditional application scenarios, a hybrid NB-IoT/FSK heterogeneous network architecture is proposed. With lower demodulation threshold of Frequency-Shift Keying(FSK), it can further improve the coverage of the hybrid network, reduce the end node power consumption, so as to realize more terminals' access under the requirement of deep coverage.And then Universal Software Radio Peripheral(USRP), the software defined radio platform, is adopted to build the heterogeneous network demo system and simulate the scenario of intelligent water meter reading. By simple simulations and actual field test, this heterogeneous network is proved to be feasible and have good performance.
With the advantages of wide coverage, low power consumption, massive user access,Narrow Band Internet of Things(NB-IoT) has become one of the mainstream technologies of wide area IoT.Nevertheless, a single NB-IoT network in the environment with power extremely constrained(such as wells,underground garage in demand of deep coverage) will still have problems of weak coverage and large power consumption of end nodes. Due to the shortage of NB-IoT single network in traditional application scenarios, a hybrid NB-IoT/FSK heterogeneous network architecture is proposed. With lower demodulation threshold of Frequency-Shift Keying(FSK), it can further improve the coverage of the hybrid network, reduce the end node power consumption, so as to realize more terminals' access under the requirement of deep coverage.And then Universal Software Radio Peripheral(USRP), the software defined radio platform, is adopted to build the heterogeneous network demo system and simulate the scenario of intelligent water meter reading. By simple simulations and actual field test, this heterogeneous network is proved to be feasible and have good performance.
引文
[1]陈博,甘志辉.NB-IoT网络商业价值及组网方案研究[J].移动通信,2016,40(13):42-46,52.(CHEN Bo,GAN Zhihui Research on commercial value and networking solution of NB-IoT network[J].Mobile Communication,2016,40(13):42-46,52.)
[2]WANG Y P E,LIN X,ADHIKARY A,et al.A primer on 3GPP Narrowband Internet of Things(NB-Io T)[J].IEEE Communications Magazine,2016,55(3):117-123.
[3]SINHA R S,WEI Y,HWANG S H.A survey on LPWA technology:LoRa and NB-IoT[J].ICT Express,2017,3(1):14-21.
[4]LAURIDSEN M,KOVACS I Z,MOGENSEN P,et al.Coverage and capacity analysis of LTE-M and NB-IoT in a rural area[C]//Vehicular Technology Conference.Montreal,QC,Canada:IEEE,2017:1-5.
[5]邹玉龙,丁晓进,王全全.NB-IoT关键技术及应用前景[J].中兴通讯技术,2017,23(1):43-46.(ZOU Yulong,DINGXiaojin,WANG Quanquan.Key technologies and application prospect for NB-IoT[J].ZTE Technology,2017,23(1):43-46.)
[6]陈红瑜.基于智慧路灯及异构网通讯网关的智慧城市物联网解决方案[J].智能建筑电气技术,2017,11(4):61-64(CHEN Hongyu.Smart city IoT solutions based on intelligent street lighting and heterogeneous network communication gateway[J].Intelligent Building Electrical Technology,2017,11(4):61-64.)
[7]梁居宝.基于异构网络融合的农业远程监控系统设计[D].北京:中国农业科学院,2011.(LIANG Jubao.Design of telemonitoring system for agro-environmental information based on heterogeneous network integration[D].Beijing:Chinese Academy of Agricultural Sciences,2011.)
[8]毛涛,张生.基于物联网的智能水表系统设计与实现[J].信息技术,2017(7):175-178.(MAO Tao,ZHANG Sheng.Design and implementation of intelligent water meter based on the Internet of things technology[J].Information Technology,2017(7):175-178.)
[9]马建华,薛广民,万江飞,等.异构无线网在油气生产物联网中的应用研究与实践[J].电信技术,2014,1(6):42-46(MA Jianhua,XUE Guangmin,WAN Jiangfei,et al.Application research and practice of heterogeneous wireless network in oil and gas production Internet of things[J].Telecommunication Technology,2014,1(6):42-46.)
[10]戴博,袁弋,余媛芳.窄带物联网(NB-IoT)标准与关键技术[M].北京:人民邮电出版社,2017.(DAI Bo,YUAN Yi,YUYuanfang.Narrow Band Internet of Things(NB-IoT)standards and key technologies[M].Beijing:People's Post and Telecommunications Press,2017.)
[11]RATASUK R,VEJLGAARD B,MANGALVEDHE N,et al.NB-Io T system for M2M communication[C]//Wireless Communications and Networking Conference Workshops.Doha,Qatar:IEEE,2016:428-432.
[12]金文光,张正宇,唐少华.2FSK信号DSTFT解调算法中的同步新方法[J].浙江大学学报(工学版),2011,45(6):1027-1031.(JIN Wenguang,ZHANG Zhengyu,TANG Shaohua.New method for synchronization in DSTFT demodulation algorithm of 2FSK signal[J].Journal of Zhejiang University(Engineering Edition),2011,45(6):1027-1031.)
[13]刘虹霞.基于谱分析原理实现FSK接收机的研究[D].哈尔滨:哈尔滨工程大学,2008.(LIU Hongxia.Research on implementation of FSK receiver based on spectral analysis theory[D].Harbin,China:Harbin Engineering University,2008.)
[14]杨小牛,楼才义,徐建良.软件无线电原理与应用[M].北京:电子工业出版社,2001.(YANG Xiaoniu,LOU Caiyi,XUJianliang.The principle and application of software radio[M].Beijing:Electronic Industry Press,2001.)
[15]姜宇柏,游思晴.软件无线电原理与工程应用[M].北京:机械工业出版社,2007.(JIANG Yubo,YOU Siqing.The principle and engineering application of software radio[M].Beijing:Machinery Industry Press,2007.)
[2]WANG Y P E,LIN X,ADHIKARY A,et al.A primer on 3GPP Narrowband Internet of Things(NB-Io T)[J].IEEE Communications Magazine,2016,55(3):117-123.
[3]SINHA R S,WEI Y,HWANG S H.A survey on LPWA technology:LoRa and NB-IoT[J].ICT Express,2017,3(1):14-21.
[4]LAURIDSEN M,KOVACS I Z,MOGENSEN P,et al.Coverage and capacity analysis of LTE-M and NB-IoT in a rural area[C]//Vehicular Technology Conference.Montreal,QC,Canada:IEEE,2017:1-5.
[5]邹玉龙,丁晓进,王全全.NB-IoT关键技术及应用前景[J].中兴通讯技术,2017,23(1):43-46.(ZOU Yulong,DINGXiaojin,WANG Quanquan.Key technologies and application prospect for NB-IoT[J].ZTE Technology,2017,23(1):43-46.)
[6]陈红瑜.基于智慧路灯及异构网通讯网关的智慧城市物联网解决方案[J].智能建筑电气技术,2017,11(4):61-64(CHEN Hongyu.Smart city IoT solutions based on intelligent street lighting and heterogeneous network communication gateway[J].Intelligent Building Electrical Technology,2017,11(4):61-64.)
[7]梁居宝.基于异构网络融合的农业远程监控系统设计[D].北京:中国农业科学院,2011.(LIANG Jubao.Design of telemonitoring system for agro-environmental information based on heterogeneous network integration[D].Beijing:Chinese Academy of Agricultural Sciences,2011.)
[8]毛涛,张生.基于物联网的智能水表系统设计与实现[J].信息技术,2017(7):175-178.(MAO Tao,ZHANG Sheng.Design and implementation of intelligent water meter based on the Internet of things technology[J].Information Technology,2017(7):175-178.)
[9]马建华,薛广民,万江飞,等.异构无线网在油气生产物联网中的应用研究与实践[J].电信技术,2014,1(6):42-46(MA Jianhua,XUE Guangmin,WAN Jiangfei,et al.Application research and practice of heterogeneous wireless network in oil and gas production Internet of things[J].Telecommunication Technology,2014,1(6):42-46.)
[10]戴博,袁弋,余媛芳.窄带物联网(NB-IoT)标准与关键技术[M].北京:人民邮电出版社,2017.(DAI Bo,YUAN Yi,YUYuanfang.Narrow Band Internet of Things(NB-IoT)standards and key technologies[M].Beijing:People's Post and Telecommunications Press,2017.)
[11]RATASUK R,VEJLGAARD B,MANGALVEDHE N,et al.NB-Io T system for M2M communication[C]//Wireless Communications and Networking Conference Workshops.Doha,Qatar:IEEE,2016:428-432.
[12]金文光,张正宇,唐少华.2FSK信号DSTFT解调算法中的同步新方法[J].浙江大学学报(工学版),2011,45(6):1027-1031.(JIN Wenguang,ZHANG Zhengyu,TANG Shaohua.New method for synchronization in DSTFT demodulation algorithm of 2FSK signal[J].Journal of Zhejiang University(Engineering Edition),2011,45(6):1027-1031.)
[13]刘虹霞.基于谱分析原理实现FSK接收机的研究[D].哈尔滨:哈尔滨工程大学,2008.(LIU Hongxia.Research on implementation of FSK receiver based on spectral analysis theory[D].Harbin,China:Harbin Engineering University,2008.)
[14]杨小牛,楼才义,徐建良.软件无线电原理与应用[M].北京:电子工业出版社,2001.(YANG Xiaoniu,LOU Caiyi,XUJianliang.The principle and application of software radio[M].Beijing:Electronic Industry Press,2001.)
[15]姜宇柏,游思晴.软件无线电原理与工程应用[M].北京:机械工业出版社,2007.(JIANG Yubo,YOU Siqing.The principle and engineering application of software radio[M].Beijing:Machinery Industry Press,2007.)