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| 1 | Foundation Study on Wireless Big Data: Concept, Mining, Learning and Practices显示文摘Facing the development of future 5 G, the emerging technologies such as Internet of things, big data, cloud computing, and artificial intelligence is enhancing an explosive growth in data traffic. Radical changes in communication theory and implement technologies, the wireless communications and wireless networks have entered a new era. Among them, wireless big data(WBD) has tremendous value, and artificial intelligence(AI) gives unthinkable possibilities. However, in the big data development and artificial intelligence application groups, the lack of a sound theoretical foundation and mathematical methods is regarded as a real challenge that needs to be solved. From the basic problem of wireless communication, the interrelationship of demand, environment and ability, this paper intends to investigate the concept and data model of WBD, the wireless data mining, the wireless knowledge and wireless knowledge learning(WKL), and typical practices examples, to facilitate and open up more opportunities of WBD research and developments. Such research is beneficial for creating new theoretical foundation and emerging technologies of future wireless communications. | Jinkang Zhu Chen Gong Sihai Zhang Ming Zhao Wuyang Zhou | 2018 | China Communications2018，15，12： | 9 |
| 2 | Exploring the Road to 6G: ABC-Foundation for Intelligent Mobile Networks显示文摘The 5 th generation(5 G)mobile networks has been put into services across a number of markets,which aims at providing subscribers with high bit rates,low latency,high capacity,many new services and vertical applications.Therefore the research and development on 6 G have been put on the agenda.Regarding demands and characteristics of future 6 G,artificial intelligence(A),big data(B)and cloud computing(C)will play indispensable roles in achieving the highest efficiency and the largest benefits.Interestingly,the initials of these three aspects remind us the significance of vitamin ABC to human body.In this article we specifically expound on the three elements of ABC and relationships in between.We analyze the basic characteristics of wireless big data(WBD)and the corresponding technical action in A and C,which are the high dimensional feature and spatial separation,the predictive ability,and the characteristics of knowledge.Based on the abilities of WBD,a new learning approach for wireless AI called knowledge+data-driven deep learning(KD-DL)method,and a layered computing architecture of mobile network integrating cloud/edge/terminal computing,is proposed,and their achievable efficiency is discussed.These progress will be conducive to the development of future 6 G. | Jinkang Zhu Ming Zhao Sihai Zhang Wuyang Zhou | 2020 | China Communications2020，17，6： | 8 |
| 3 | Perovskite nanocrystals:synthesis,properties and applications显示文摘Halide perovskites have emerged as superstar materials for optoelectronic devices. Besides the fever of research in solar cells, these materials show great promise on light emitting diodes(LEDs), photodetectors and lasers as well. Rapid advances in bulk perovskite materials aroused universal interest for the development of perovskite nanocrystals, inspired by the great progress of classic colloidal semiconductor quantum dots. Perovskite nanocrystals have been synthesized based on solution process and exhibited high luminescence quantum yield, sharp emission peak, and emission color tunability. Significant progresses have been made about the application of perovskite nanocrystals for LED and lasers in recent years. In this paper, we will comprehensively introduce the synthesis strategies, physical and chemical characteristics, as well as their applications in optoelectronic devices. | Pengfei Fu Qingsong Shan Yuequn Shang Jizhong Song Haibo Zeng Zhijun Ning Jinkang Gong | 2017 | Science Bulletin2017，62，5： | 6 |
| 4 | Capacity-Power Consumption and Energy-Efficiency Evaluation of Green Wireless Networks显示文摘In this paper,we discuss in detail the basic issue of green design and consider an energy efficiency function as the metric to evaluate green cellular networks.Specifically,we investigate the transmit power required for an expected transmission capacity and propose a capacity-power formula based on the energy conservation and the Shannon capacity theorem.Two novel definitions of cell interference depth and handoff dynamic model are introduced and the corresponding expression of energy efficiency function is derived.Numerical results show that the energy efficiency function is closely correlated with the transmitted/received power required and the cell radius.Our work provides a useful basis for research and evaluation on green design and technology of cellular networks. | Zhu Jinkang | 2012 | China Communications2012，9，2： | 6 |
| 5 | Energy Efficiency Optimization in Relay-Assisted Networks with Energy Harvesting Relay Constraints显示文摘In this paper we consider data transmission in a decode-and-forward(DF)relay-assisted network in which the relay is energy harvesting(EH) powered while the base station(BS) is power-grid powered.Our purpose is to maximize the BS's energy efficiency(EE) while making full use of the relay's renewable energy and satisfying the specific average throughput requirements.In contrast to existing literature on energy harvesting system which only considers the radio transmission power,we take the static circuit power into account as well.We formulate the EE optimization problem and prove that the EE of the BS and relay are both quasiconvex in the instantaneous transmission rate.Then we divide the complex optimization problem into two point-to-point link level optimization parts and propose an energyefficient resource allocation(EERA) scheme in which power control and sleep mode management are jointly used.The simulation results demonstrate that EERA may achieve good energy saving effects.We also compare the EE of an energy harvesting relay system with a power-grid powered one and provide more insight into the EE problem of energy harvesting relay system. | ZHAO Ming ZHAO Jing ZHOU Wuyang ZHU Jinkang ZHANG Sihai | 2015 | China Communications2015，12，2： | 4 |
| 6 | Low complexity power control approach based on MMSE detection for V-BLAST显示文摘A low complexity Per-Antenna Power Control (PAPC) approach based on Minimum Mean Squared Error (MMSE) detection for V-BLAST is proposed in this paper. The PAPC approach is developed for minimizing the Bit Error Rate (BER) averaged over all substreams when the data throughput and the total transmit power keep constant over time. Simulation results show that the Power-controlled V-BLAST (P-BLAST) outperforms the conventional V-BLAST in terms of BER performance with MMSE detector, especially in presence of high spatial correlation between antennas. However, the additional complexity for P-BLAST is not high. When MMSE detector is adopted, the P-BLAST can achieve a comparable BER performance to that of conventional V-BLAST with Maximum Likelihood (ML) detector but with low complexity. | Zhao Kun Qiu Ling Zhu Jinkang | 2006 | Journal of Systems Engineering and Electronics2006，17，4： | 3 |
| 7 | A New Species of the Genus Achalinus from Huangshan, Anhui, China(Squamata: Xenodermidae)显示文摘A new species of the genus Achalinus is described based on five specimens collected from the villages of Huangjialing and Fuxi, Huangshan, Anhui, China. It can be morphologically differentia ted from all the other species in Achalinus except for A. spinalis and A. werneri by the presence of a dotted black streak in the middle of the subcaudal. It can be distinguished from A. spinalis in that its two anterior temporals are in contact with eye, and A. werneri by its light brown flanks. The phylogenetic rela tionship of Achalinus was reconstructed using the mitochondrial locus of cytochrome coxidase subunit 1(CO1). The five new specimens form a monophyletic clade with strong support. The uncorrected p-dista nces between the new species and other representatives of Achalinus range from 13.6% to 21.7%. The recognition of the new species increases the number of described Achalinus species to 14. | Ruyi HUANG Lifang PENG Lei YU Tianqi HUANG Ke JIANG Li DING Jinkang CHANG Diancheng YANG Yuhao XU Song HUANG | 2021 | Asian Herpetological Research2021，12，2： | 3 |
| 8 | Benefits Analysis of Beam Hopping in Satellite Mobile System with Unevenly Distributed Traffic显示文摘Satellite mobile system and space-airground integrated network have a prominent superiority in global coverage which plays a critical role in remote and non-land regions, as well as emergency communications. However, due to the gradual angle attenuations of the satellite antennas, it is difficult to achieve full frequency multiplex among different beams as terrestrial 5G network. Multi-color frequency reuse is widely adopted in both academic and industry. Beam hopping scheme has attracted the attention of researchers recently due to the allocation flexibility. In this paper, we focus on analyzing the performance benefits of beam hopping compared with multi-color frequency reuse scheme in non-uniform user and traffic distributions in satellite system. Aerial networks are also introduced to form a space-airground integrated network for coverage enhancement,and the capacity improvement is analyzed. Besides,additional improved techniques are provided to make comprehensive analysis and comparisons. Theoretical analysis and simulation results indicate that the beam hopping scheme has a prominent superiority in the system capacity compared with the traditional multicolor frequency reuse scheme in both satellite mobile system and future space-air-ground integrated network. | Yitao Li Zhongqiang Luo Wuyang Zhou Jinkang Zhu | 2021 | China Communications2021，18，9： | 2 |
| 9 | Visual detection of rice rows based on Bayesian decision theory and robust regression least squares method显示文摘Paddy field management is complicated and labor intensive.Correct row detection is important to automatically track rice rows.In this study,a novel method was proposed for accurate rice row recognition in paddy field transplanted by machine before the disappearance of row information.Firstly,Bayesian decision theory based on the minimum error was used to classify the period of collected images into three periods(T1:0-7 d;T2:7-28 d;T3:28-45 d),and resulting in the correct recognition rate was 97.03%.Moreover,secondary clustering of feature points was proposed,which can solve some problems such as row breaking and tilting.Then,the robust regression least squares method(RRLSM)for linear fitting was proposed to fit rice rows to effectively eliminate interference by outliers.Finally,a credibility analysis of connected region markers was proposed to evaluate the accuracy of fitting lines.When the threshold of credibility was set at 40%,the correct recognition rate of fitting lines was 96.32%.The result showed that the method can effectively solve the problems caused by the presence of duckweed,high-density inter-row weeds,broken rows,tilting(±60°),wind and overlap. | Jing He Ying Zang Xiwen Luo Runmao Zhao Jie He Jinkang Jiao | 2021 | International Journal of Agricultural and Biological Engineering2021，14，1： | 2 |
| 10 | Hydrological simulation by SWAT model with fixed and varied parameterization approaches under land use change显示文摘 | Du Jinkang Rui Hanyi Zuo Tianhui | 2013 | Water Resour Manage2013，，27： | 1 |
| 11 | Parallel Combinatory SS Communication 显示文摘 | Zhu Jinkang Marubayashi G | 1990 | IEICE Technical Report of Japan1990，90，23： | 1 |
| 12 | Properties and application of parallel combinatory SS communication system 显示文摘 | ZHU Jinkang | 1992 | IEEE Second International Symposium on Spread Spectrum Techniques and Applications1992，12，1： | 1 |
| 13 | Block adaptive subbcarrier allocation for wireless multiuser OFDM system显示文摘 | Xiaowen Liang and Jinkang Zhu | 2004 | ournal of electronics(china)2004，21，11： | 1 |
| 14 | The“sophistication” of exports: a new trade measure显示文摘 | Sanjaya L John W Jinkang Z | 2006 | World Development2006，34，2： | 1 |
| 15 | Effect of Uncertainty of Grid DEM on TOPMODEL:Evaluation and Analysis显示文摘TOPMODEL,a semi-distributed hydrological model,has been widely used.In the process of simulation of the model,Digital Elevation Model(DEM) is used to provide the input data,such as topographic index and distance to the drainage outlet;thus DEM plays an important role in TOPMODEL.This study aims at examining the impacts of DEM uncertainty on the simulation results of TOPMODEL.In this paper,the effects were evaluated mainly from quantitative and qualitative aspects.Firstly,DEM uncertainty was simulated by using the Monte Carlo method,and for every DEM realization,the topographic index and distance to the drainage outlet were extracted.Secondly,the obtained topographic index and the distance to the drainage outlet were input to the TOPMODEL to simulate seven rain-storm-flood events,and four evaluation indices,such as Nash and Sutcliffe efficiency criterion(EFF),sum of squared residuals over all time steps(SSE),sum of squared log residuals over all time steps(SLE) and sum of absolute errors over all time steps(SAE) were recorded.Thirdly,these four evaluation indices were analyzed in statistical manner(minimum,maximum,range,standard deviation and mean value),and effect of DEM uncertainty on TOPMODEL was quantitatively analyzed.Finally,the simulated hydrographs from TOPMODEL using the original DEM and realizations of DEM were qualitatively evaluated under each flood cases.Results show that the effect of DEM uncertainty on TOPMODEL is inconsiderable and could be ignored in the model’s application.This can be explained by:1) TOPMODEL is not sensitive to the distribution of topographic index and distance to the drainage outlet;2) the distri-bution of topographic index and distance to the drainage outlet are slightly affected by DEM uncertainty. | WANG Peifa DU Jinkang FENG Xuezhi KANG Guoding | 2006 | Chinese Geographical Science2006，16，4： | 1 |
| 16 | The effect of pore size on tissue ingrowth and neovascularization in porous bioceramics of controlled architecture in vivo显示文摘 | Feng B Jinkang Z Zhen W | | 0，，01： | 1 |
| 17 | A new 5G radio evolution towards 5G-Advanced显示文摘The evolution of the fifth-generation(5G)new radio(NR)has progressed swiftly since the third generation partnership project(3GPP)standardized the first NR version(Release 15)in mid-2018.Nowadays,the world’s leading carriers are competing to provide various commercial services over 5G networks.Looking ahead to 2025 and beyond,it is expected that over 6.5 million 5G base stations will be installed to offer services to over 58%of the world’s population via over 100 billion 5G connections.Following the rapid development of 5G,an increasing number of commercialization use cases will drive the 5G network to continuously improve performance and expand capabilities.Hence,it is the right time to consider a welldefined framework and standardization for 5G NR evolution(5G-Advanced)to support commercialization between 2025 and 2030.First,this study addresses the key driving forces,requirements,usage scenarios,and capabilities of 5G-Advanced;then,it highlights the main technological challenges and introduces the top 10 promising technological directions in detail.Finally,other fascinating technological directions in5G-Advanced are shortly mentioned. | Jiyong PANG Shaobo WANG Zhenfei TANG Yanmin QIN Xiaofeng TAO Xiaohu YOU Jinkang ZHU | 2022 | Science China(Information Sciences)2022，65，9： | 1 |
| 18 | An adaptive subcarrier allocation algorithm for multiuser OFDM system显示文摘 | Liang Xiaowen Zhu Jinkang | 2003 | IEEE Vehicular Technology Conference2003，3，： | 1 |
| 19 | Survey of wireless big data显示文摘Wireless big data describes a wide range of massive data that is generated,collected and stored in wireless networks by wireless devices and users.While these data share some common properties with traditional big data,they have their own unique characteristics and provide numerous advantages for academic research and practical applications.This article reviews the recent advances and trends in the field of wireless big data.Due to space constraints,this survey is not intended to cover all aspects in this field,but to focus on the data aided transmission,data driven network optimization and novel applications.It is expected that the survey will help the readers to understand this exciting and emerging research field better.Moreover,open issues and promising future directions are also identified. | Lijun Qian Jinkang Zhu Sihai Zhang | 2017 | Journal of Communications and Information Networks2017，2，1： | 1 |
| 20 | The Sophistication of Exports:A New Measure of Product Characteristics显示文摘 | Lall S John W Jinkang Z | 2006 | WorldDevelopment2006，34，2： | 1 |
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