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| 1 | Towards 6G wireless communication networks:vision,enabling technologies,and new paradigm shifts显示文摘The fifth generation(5G)wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized,such as mass connectivity,ultra-reliability,and guaranteed low latency.However,5G will not meet all requirements of the future in 2030 and beyond,and sixth generation(6G)wireless communication networks are expected to provide global coverage,enhanced spectral/energy/cost efficiency,better intelligence level and security,etc.To meet these requirements,6G networks will rely on new enabling technologies,i.e.,air interface and transmission technologies and novel network architecture,such as waveform design,multiple access,channel coding schemes,multi-antenna technologies,network slicing,cell-free architecture,and cloud/fog/edge computing.Our vision on 6G is that it will have four new paradigm shifts.First,to satisfy the requirement of global coverage,6G will not be limited to terrestrial communication networks,which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV)communication networks,thus achieving a space-airground-sea integrated communication network.Second,all spectra will be fully explored to further increase data rates and connection density,including the sub-6GHz,millimeter wave(mmWave),terahertz(THz),and optical frequency bands.Third,facing the big datasets generated by the use of extremely heterogeneous networks,diverse communication scenarios,large numbers of antennas,wide bandwidths,and new service requirements,6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI)and big data technologies.Fourth,network security will have to be strengthened when developing 6G networks.This article provides a comprehensive survey of recent advances and future trends in these four aspects.Clearly,6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears. | Xiaohu YOU Cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi CHEN Xinying MA Chih-Lin I Shuangfeng HAN Ke LI Chengkang PAN Zhimin ZHENG Lajos HANZO Xuemin(Sherman)SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik GLARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin CHEN Zhe CHEN Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO HVincent POOR Gerhard P.FETTWEIS Ying-Chang LIANG | 2021 | Science China(Information Sciences)2021，64，1： | 122 |
| 2 | Suboptimal Transmission of Orthogonal Space-time Block Codes over Correlated Distributed Antennas显示文摘 | Han Shuangfeng Zhou Shidong Wang Jing | 2007 | Signal Processing Letters2007，14，2： | 1 |
| 3 | Toward Green and Soft: A 5G Perspective显示文摘 | I Chih-Lin ROWELL C HAN Shuangfeng | 2014 | IEEE Communication Magazine2014，52，2： | 1 |
| 4 | Unified Framework Towards Flexible Multiple Access Schemes for 5G显示文摘Non-orthogonal multiple access(NOMA) schemes have achieved great attention recently and been considered as a crucial component for 5G wireless networks since they can efficiently enhance the spectrum efficiency, support massive connections and potentially reduce access latency via grant free access. In this paper, we introduce the candidate NOMA solutions in 5G networks, comparing the principles, key features, application scenarios, transmitters and receivers, etc. In addition, a unified framework of these multiple access schemes are proposed to improve resource utilization, reduce the cost and support the flexible adaptation of multiple access schemes. Further, flexible multiple access schemes in 5G systems are discussed. They can support diverse deployment scenarios and traffic requirements in 5G. Challenges and future research directions are also highlighted to shed some lights for the standardization in 5G. | SUN Qi WANG Sen HAN Shuangfeng Chih-Lin I | 2016 | ZTE Communications2016，14，4： | 1 |
| 5 | Optirml Diversi?ty Perforrrnnce of Space Time Block Codes in Correlated Distributed MIMO Channels显示文摘 | HAN Shuangfeng WANG Jing U V | 2008 | IEEE Transactions on Wire?less Communications2008，7，6： | 1 |
| 6 | Energy-Efficient Large-Scale Antenna Systems with Hybrid Digital-Analog Beamforming Structure显示文摘A large-scale antenna system(LSAS) with digital beamforming is expected to significantly increase energy efficiency(EE) and spectral efficiency(SE) in a wireless communication system. However, there are many challenging issues related to calibration, energy consumption, and cost in implementing a digital beamforming structure in an LSAS. In a practical LSAS deployment, hybrid digital-analog beamforming structures with active antennas can be used. In this paper, we investigate the optimal antenna configuration in an N × M beamforming structure, where N is the number of transceivers, M is the number of active antennas per transceiver, where analog beamforming is introduced for individual transceivers and digital beamforming is introduced across all N transceivers. We analyze the green point, which is the point of maximum EE on the EE-SE curve, and show that the log-scale EE scales linearly with SE along a slope of-lg2/N. We investigate the effect of M on EE for a given SE value in the case of fixed NM and independent N and M. In both cases, there is a unique optimal M that results in optimal EE. In the case of independent N and M, there is no optimal(N, M) combination for optimizing EE. The results of numerical simulations are provided, and these results support our analysis. | Shuangfeng Han Chih-Lin I Zhikun Xu Qi Sun Haibin Li | 2015 | ZTE Communications2015，13，1： | 1 |
| 7 | 3D shape-stable temperature-regulated macro-encapsulated phase change material:KAl(SO_(4))_(2)·12H_(2)O-C_(2)H_(2)O_(4)·2H_(2)O-CO(NH_(2))_(2) eutectic/polyurethane foam as core and carbon modified silicone resin as shell显示文摘Micro-encapsulated phase change materials(PCMs)have been confirmed a high-efficiency way to store latent heat,but their poor mechanical properties,expensive and complicated synthesis block their industrial application.Herein,borrowing from this structure and magnifying it,we prepared a novel 3D shape-stable temperature-regulated macro-encapsulated PCMs.The KAl(SO_(4))_(2)·12H_(2)O-C_(2)H_(2)O_(4)·2H_(2)O-CO(NH_(2))_(2)(APSD-OAD-Urea)was configured as PCM to composite with light-weight porous polyurethane foam(PUF)framework,and the enthalpy reduction of PCM@PUF(core)was only 1.70%.Subsequent,carbon modified silicone resin(CMS,shell)was introduced to macro-encapsulate PCM@PUF.The results showed that with the optimized mass ratio of 75%APSD-25%OAD and extra addition of 10% Urea,the obtained PCM had a relatively high enthalpy(194.6 J/g),appropriate phase transition temperature(42.17℃)and suppressed supercooling(0.504℃).CMS thin-layer with 2.0 mm thickness increased resistance to deformation,impressions,scratches,and possessed a brilliant sealing effect on PCM@PUF to achieve leak-free and operation steady of PCM.PCM@PUF@CMS with low thermal conductivity from inside out displayed an outstanding thermal insulation performance.Moreover,the fluctuation of the thermodynamic property after 150 thermal cycles is relatively small.All these above enable the application of PCM@PUF@CMS in the thermal energy storage system and provide a novel strategy for the preparation of macro-encapsulated PCMs. | Weicheng Chen Xianghui Liang Wanhui Han Shuangfeng Wang Xuenong Gao Zhengguo Zhang Yutang Fang | 2022 | Journal of Materials Science & Technology2022，，5： | 1 |
| 8 | Toward green and soft: A 5G perspective 显示文摘 | Chih-Lin I Rowell C Han Shuangfeng | 2014 | IEEE Communication Maga- zine2014，52，2： | 1 |
| 9 | Carbon Metabolism and Bioplastic Production by Halophilic Archaea显示文摘1 Introduction Haloarchaea represents a distinct group of Archaea that typically inhabits hypersaline environments,such as salt lakes and sea salterns.They are easy to culture and many haloarchaea are genetically tractable,hence they are excellent model systems for research of archaeal genetics, | XIANG Hua HAN Jing HOU Jing ZHAO Dahe CAI Shuangfeng CAI Lei | 2014 | Acta Geologica Sinica(English Edition)2014，88，S1： | 0 |
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