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| 1 | System Integration of Terrestrial Mobile Communication and Satellite Communication——The Trends, Challenges and Key Technologies in B5G and 6G显示文摘Mobile communication standards have been developed into a new era of B5G and 6G.In recent years,low earth orbit(LEO)satellites and space Internet have become hot topics.The integrated satellite and terrestrial systems have been widely discussed by industries and academics,and even are expected to be applied in those huge constellations in construction.This paper points out the trends of two stages towards system integration of the terrestrial mobile communication and the satellite communications:to be compatible with 5G,and to be integrated within 6G.Based on analysis of the challenges of both stages,key technologies are thereafter analyzed in detail,covering both air interface currently discussed in 3GPP for B5G and also novel network architecture and related transmission technologies toward future 6G. | Shanzhi Chen Shaohui Sun Shaoli Kang | 2020 | China Communications2020，17，12： | 57 |
| 2 | A Comprehensive Survey of TDD-Based Mobile Communications Systems from TD-SCDMA 3G to TDLTE-Advanced 4G and 5G directions显示文摘TDD(Time Division Duplex) is one of the two duplex modes.TD-SCDMA(Time division Synchronous CDMA) is the first TDD-based cellular mobile system which is commercialized in wide area and large scale and TD-SCDMA is also the first cellular mobile system which adopted smart antenna technology,also called as beamforming.As the long term evolution of TD-SCDMA,TDLTE(A)(Time Division-Lone Term Evolution,and TD-LTE Advanced) introduced OFDM(Orthogonal Frequency Division Multiplexing)and enhanced smart antenna technology together with MIMO(Multiple Input Multiple Output),which are adopted by LTE FDD(Frequency Division Duplex) either.It is indicated that TD-SCDMA and TD-LTE(A)have opened a sustainable utilization era of TDD and smart antenna Technologies in the wireless mobile communication.This paper aims to present a systematic introduction to TDD-based mobile communications from TD-SCDMA to TD-LTE and beyond and its comparisons to FDD,with particular focuses on TDD key technologies,principles of TDD cellular mobile systems,TDD evolution path,and future TDD 5G directions.We hope that this paper will provide a comprehensive overview of TDD technology upgrade and its standard evolution,and serve as a valuable reference for research on 5G mobile communication systems.It is believed that TDD will play more important role in 5G. | CHEN Shanzhi SUN Shaohui WANG Yingmin XIAO Guojun Rakesh Tamrakar | 2015 | China Communications2015，12，2： | 17 |
| 3 | 5G ENABLED VEHICULAR COMMUNICATIONS AND NETWORKING显示文摘Vehicular communications and networking(VCN)is considered a billion-dollar industry.Its development not only possesses economic value,but also has enormous social potential.The earliest vehicular network started from the dedicated short range networks,such as the IEEE 802.11p standard established at the beginning of this century.In recent years,the public access network based VCN has been rapidly advanced.For example,LTE-V based on 4G LTE is under standardization。 | xiang cheng rongqing zhang shanzhi chen jia li liuqing yang hongwei zhang | 2018 | China Communications2018，15，7： | 5 |
| 4 | A Trajectory Prediction Based Intelligent Handover Control Method in UAV Cellular Networks显示文摘The airborne base station(ABS) can provide wireless coverage to the ground in unmanned aerial vehicle(UAV) cellular networks.When mobile users move among adjacent ABSs,the measurement information reported by a single mobile user is used to trigger the handover mechanism.This handover mechanism lacks the consideration of movement state of mobile users and the location relationship between mobile users,which may lead to handover misjudgments and even communication interrupts.In this paper,we propose an intelligent handover control method in UAV cellular networks.Firstly,we introduce a deep learning model to predict the user trajectories.This prediction model learns the movement behavior of mobile users from the measurement information and analyzes the positional relations between mobile users such as avoiding collision and accommodating fellow pedestrians.Secondly,we propose a handover decision method,which can calculate the users' corresponding receiving power based on the predicted location and the characteristic of air-to-ground channel,to make handover decisions accurately.Finally,we use realistic data sets with thousands of non-linear trajectories to verify the basic functions and performance of our proposed intelligent handover controlmethod.The simulation results show that the handover success rate of the proposed method is 8% higher than existing methods. | Bo Hu Hanzhang Yang Lei Wang Shanzhi Chen | 2019 | China Communications2019，16，1： | 3 |
| 5 | A CSI Acquisition Approach for mm Wave Massive MIMO显示文摘Massive Multiple-Input Multiple-Output(MIMO)is considered as a key technology for 4G and 5G wireless communication systems to improve spectrum efficiency by supporting large number of concurrent users.In addition,for the target frequency band of 5G system,mmWave band,massive MIMO is pivotal in compensating the high pathloss.In this paper,we investigate the channel state information(CSI)acquisition problem for mmWave massive MIMO.With hybrid analog-digital antenna architecture,how to derive the analog beamforming and digital beamforming is studied.An iterative analog beam acquisition approach is proposed to save system overhead and reduce beam searching complexity.Regarding the digital beamforming,a grouping based codebook is proposed to facilitate CSI feedback.The codebook is then extended to incorporate also analog beam acquisition.Furthermore,channel reciprocity is exploited to save CSI reporting overhead and a two-stage approach is proposed to fully utilize the channel reciprocity at both mobile station and base station side and accelerate the CSI acquisition procedure. | Shanzhi Chen Qiubin Gao Runhua Chen Hui Li Shaohui Sun Zhengxuan Liu | 2019 | China Communications2019，16，9： | 2 |
| 6 | C-V2X Equipment Identification Management and Authentication Mechanism显示文摘Cellular vehicle-to-everything(C-V2X)is the most promising V2X communication technology which can greatly improve traffic efficiency and road safety.However,when vehicles are interconnected with the surrounding radio environment,the CV2X system will face various network security risks and threats,significantly impacting on traffic and life safety.This paper proposes a novel unified identification management framework and security authentication mechanism for the C-V2X equipment based on the security problems analyses of the C-V2X system and the existing security protection schemes.This paper also presents the security analysis and evaluation for the unified identification management and authentication mechanism.A experiment system is implemented to verify feasibility and effectiveness for the proposed mechanism. | Shanzhi Chen Qiang Li Yong Wang Hui Xu Xiaoyong Jia | 2021 | China Communications2021，18，8： | 2 |
| 7 | Mobility driven network slicing: an enabler of on demand mobility management for 5G显示文摘As different requirements on mobility support will be introduced by diversified communication scenarios in the fifth generation(5G), on demand mobility management is put forward to simplify signaling process, reduce terminal power consumption, improve network efficiency and so on. In order to enable on demand mobility management in 5G networks, a mobility driven network slicing(MDNS) was proposed, which takes individual mobility support requirements into account while customizing networks for different mobile services. Within the MDNS framework, the actual levels of required mobility support are determined by a mobility description system, and network slice templates with the corresponding mobility management schemes are defined by a network slice description function. By instantiating the network slices, each mobile terminal could be directed to the network slice with the most appropriate mobility management scheme. Based on this, a prototype was implemented to validate the feasibility of MDNS framework, i.e. creating multiple network slices with different mobility management schemes. In addition, the performance evaluation on average cost of processing a mobility event is conducted for the proposed MDNS framework and the long term evolution(LTE) system, and operating benefits are analyzed including efficiency and scalability. | Wang Hucheng Chen Shanzhi Ai Ming Shi Yan | 2017 | The Journal of China Universities of Posts and Telecommunications2017，24，4： | 1 |
| 8 | AGP:an anchor-geography based routing protocol with mobility prediction for VA-NET in city scenarios显示文摘 | SHI Yan JIN Xiaoye CHEN Shanzhi | 2011 | 中国邮电高校学报(英文版)2011，，1： | 1 |
| 9 | Proactive Platooning Based on C-V2X to Relieve Congestion at a Signalized Intersection显示文摘Nowadays urban traffic congestion becomes a major issue due to the increase in vehicles that lead to more commuting time,accidents,traffic violations,and high fuel consumption.Platooning is a good way to solve traffic congestion because it drives with a smaller inter-vehicle distance than human-driving.This paper proposes proactive platooning based on C-V2X(cellular vehicle-to-everything)to relieve congestion.Proactive platooning reduces the inter-vehicle distance and increases the throughput of signalized intersections through integrating the networked control platooning and computation-centralized platooning.Model and simulation experiments of proactive platooning were conducted to verify the impact of inter-vehicle distance on platooning latency,platooning safety,and traffic throughput.Simulation results show that the optimal inter-vehicle distance under proactive platooning is less than half of human-driving at a signalized intersection. | Wei Gao Yan Shi Shanzhi Chen | 2023 | China Communications2023，20，2： | 1 |
| 10 | Assessment of pyrolysis polygeneration of biomass based on major components: product characterization and elucidation of degradation pathways显示文摘 | Xin Shanzhi Yang Haiping Chen Yingquan Wang Xianhua Chen Hanping | 2013 | Fuel2013，113，： | 1 |
| 11 | A Vision of IoT: Applications, Challenges, and Opportunities with China Perspective显示文摘 | CHEN Shanzhi XU Hui LIU Dake | 2014 | IEEE Intemet of Things Journal2014，，4： | 1 |
| 12 | The requirements, challenges, and technologies for 5G of terrestrial mobile telecommunication显示文摘 | CHEN Shanzhi and ZHAO Jian | 2014 | IEEE Communications Magazine2014，52，5： | 1 |
| 13 | A vision of Io'I', Applications, challenges, and opportunities with China perspective显示文摘 | CHEN Shanzhi XU Hui LIV Dake | 2014 | IEEE Internet of ThingsJournal2014，1，4： | 1 |
| 14 | LTE-Hi : A new solution to future wireless mobile broadband challen- ges and requirements 显示文摘 | Chen Shanzhi Wang Yingmin Qin Fei | 2014 | IEEE Wireless Communica- tions2014，6，14： | 1 |
| 15 | Link level performance comparison between LTE V2X and DSRC显示文摘Applications of VANETs(Vehicular Ad hoc Networks)have their own requirements and challenges in wireless communication technology.Although regarded as the rst standard for VANETs,IEEE 802.11p is still in the eld-trial stage.Recently,LTE V2X(Long-Term Evolution Vehicular to X)appeared as a systematic V2X solution based on TD-LTE(Time Division Long-Term Evolution)4G.It is regarded as the most powerful competitor to 802.11p.We conduct link level simulations of LTE V2X and DSRC(Dedicated Short-Range Communication)for several di erent types of scenarios.Simulation results show that LTE V2X can achieve the same BLER(Block Error Ratio)with a lower SNR(Signal Noise Ratio)than DSRC.A more reliable link can be guaranteed by LTE V2X,which can achieve the same BLER with lower receiving power than DSRC.The coverage area of LTE V2X is larger than that of DSRC. | Jinling Hu Shanzhi Chen Li Zhao Yuanyuan Li Jiayi Fang Baozhu Li Yan Shi | 2017 | Journal of Communications and Information Networks2017，2，2： | 1 |
| 16 | Reconsidering Arclfitecture for Future Ubiquitous lntemet显示文摘 | Zhangfeng HU Shanzhi CHEN Bo HU | 2012 | Journal of Networks2012，7，13： | 1 |
| 17 | Energy efficient resource allocation in dowulink OFDM wireless systems with proportional rate constraints 显示文摘 | REN Zhanyang CHEN Shanzhi HU Bo | 2014 | IEEE Transactions on Vehicular Technology2014，63，5： | 1 |
| 18 | Propor- tional resource allocation with subcarrier grouping in OFDM wireless systems显示文摘 | REN Zhanyang CHEN Shanzhi HU B | 2013 | IEEE Communications Let- ters2013，17，5： | 1 |
| 19 | A Vision of loT: Applications, Challenges, and Opportu- nities With China Perspective显示文摘 | CHEN Shanzhi Xu Hui Liu Dake | 2014 | IEEE Internet of Things Journal2014，1，4： | 1 |
| 20 | Green access point selection for wireless local area networks enhanced by cognitive radio显示文摘 | Ge Wendong Chen Shanzhi Ji Hong | 2013 | Mobile Networks and Applications2013，18，4： | 1 |
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