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| 1 | A Green Paradigm for Internet of Things: Ambient Backscatter Communications显示文摘Internet of Things (IoT) has attracted extensive interest from both academia and industries, and is recognized as an ultimate infrastructure to connect everything at anytime and anywhere. The implementation of IoT generally faces the challenges from energy constraint and implementation cost. In this paper, we will introduce a new green communication paradigm, the ambient backscatter (AmBC), that could utilize the environmental wireless signals for both powering a tiny-cost device and backscattering the information symbols. Specifically, we will present the basic principles of AmBC, analyze its features and advantages, suggest its open problems, and predict its potential applications for our future IoT. | Wei Zhang Yao Qin Wenjing Zhao Minzheng Jia Qiang Liu Ruisi He Bo Ai | 2019 | China Communications2019，16，7： | 9 |
| 2 | Channel Estimation and Throughput Evaluation for 5G Wireless Communication Systems in Various Scenarios on High Speed Railways显示文摘The fifth generation(5 G) wireless communication is currently a hot research topic and wireless communication systems on high speed railways(HSR) are important applications of 5 G technologies. Existing studies about 5 G wireless systems on high speed railways(HSR) often utilize ideal channel parameters and are usually based on simple scenarios. In this paper, we evaluate the downlink throughput of 5 G HSR communication systems on three typical scenarios including urban, cutting and viaduct with three different channel estimators. The channel parameters of each scenario are generated with tapped delay line(TDL) models through ray-tracing simulations, which can be considered as a good match to practical situations. The channel estimators including least square(LS), linear minimum mean square error(LMMSE), and our proposed historical information based basis expansion model(Hi BEM). We analyze the performance of the Hi BEM estimator in terms of mean square error(MSE) and evaluate the system throughputs with different channel estimates over each scenario. Simulation results are then provided to corroborate our proposed studies. It is shown that our Hi BEM estimator outperforms other estimators and that the sys- | yanrong zhao xiyu wang gongpu wang ruisi he yulong zou zhuyan zhao | 2018 | China Communications2018，15，4： | 7 |
| 3 | Measurement-Based Channel Characterization for 5G Wireless Communications on Campus Scenario显示文摘The fifth generation(5G)communication has been a hotspot of research in recent years,and both research institutions and industrial enterprises put a lot of interests in 5G communications at some new frequency bands.In this paper,we investigate the radio channels of 5G systems below 6 GHz according to the 5G communication requirements and scenarios.Channel measurements were conducted on the campus of Beijing Jiaotong University,China at two key optional frequency bands below 6 GHz.By using the measured data,we analyzed key channel parameters at 460 MHz and 3.5 GHz,such as power delay profile,path loss exponent,shadow fading,and delay spread.The results are helpful for the 5G communication system design. | YANG Mi HE Ruisi AI Bo XIONG Lei DONG Honghui LI Jianzhi WANG Wei FAN Wei QIN Hongfeng | 2017 | ZTE Communications2017，15，1： | 2 |
| 4 | Multi-Scenario Millimeter Wave Wireless Channel Measurements and Sparsity Analysis显示文摘Wireless channel characteristics have significant impacts on channel modeling,estimation,and communication performance.While the channel sparsity is an important characteristic of wireless channels.Utilizing the sparse nature of wireless channels can reduce the complexity of channel modeling and estimation,and improve system design and performance analysis.Compared with the traditional sub6 GHz channel,millimeter wave(mmWave)channel has been considered to be more sparse in existing researches.However,most research only assume that the mmWave channel is sparse,without providing quantitative analysis and evaluation.Therefore,this paper evaluates the sparsity of mmWave channels based on mmWave channel measurements.A vector network analyzer(VNA)-based mmWave channel sounder is developed to measure the channel at 28 GHz,and multi-scenario channel measurements are conducted.The Gini index,Rician��factor and rootmean-square(RMS)delay spread are used to measure channel sparsity.Then,the key factors affecting mmWave channel sparsity are explored.It is found that antenna steering direction and scattering environment will affect the sparsity of mmWave channel.In addition,the impact of channel sparsity on channel eigenvalue and capacity is evaluated and analyzed. | Hang Mi Bo Ai Ruisi He Xin Zhou Zhangfeng Ma Mi Yang Zhangdui Zhong Ning Wang | 2022 | China Communications2022，19，11： | 2 |
| 5 | Diagnostic and prognostic utility of brain natriuretic peptide in subjects admitted to the ICU with hypoxic respiratory failure due to noncardiogenic and cardiogenic pulmonary edema显示文摘 | Karmpaliotis D Kirtane AJ Ruisi CP | 2007 | Chest2007，131，4： | 1 |
| 6 | Study on geological structural interpretation based on WorldView-2 remote sensing image and its implementation显示文摘 | ZHANG RUISI ZENG MIN CHEN JIANPING | | 0，，： | 1 |
| 7 | Diagnostic and prognostic utility of brain natriuretic peptide in subjects admitted to the ICU with hypoxic respiratory failure due to noncardiogenic and cardiogenic pulmonary edema显示文摘 | Karmpaliotis D Kirtane AJ Ruisi CP | | 0，，： | 1 |
| 8 | Diagnostic and prognostic utility of brain natriuretic Peptide in subjects admitted to the ICU with hypoxic respiratory failure due to noncardiogenic and cardiogenic pulmonary显示文摘 | Karmpaliotis D Kirtane AJ Ruisi CP | 2007 | Chest2007，131，4： | 1 |
| 9 | Diagnostic and prognostic utility of brain natriuretic peptide in subjects admitted to the ICU with hypoxic respiratory failure due to nonecadiogenic,and cardiogenic pulmonary edema显示文摘 | Kamlpaliotis D Kirtane AJ Ruisi CP | 2007 | Chest2007，131，4： | 1 |
| 10 | The Interaction of native DNA with Iron (III)-N,N'-ethylene-bis(salicylideneiminato)-chloride显示文摘 | Silvestri A Barone G Ruisi G | 2004 | Journal of Inorganic Biochemistry2004，98，4： | 1 |
| 11 | Adhesive joining of aluminum AA6082:The effects of resin and surface treatment显示文摘 | Borsellino C Di Bella G Ruisi V F | | 0，，01： | 1 |
| 12 | WFD and hydrogeological setting plans: the example of the Tevere RAver Basin 显示文摘 | Di Domenicantonio A Ruisi M Traversa P | 2005 | Environmental Science & Policy2005，8，3： | 1 |
| 13 | Diagnostic and prognostic utility of brain natriuretic peptide in subjects admitted to the ICU with hypoxic respiratory failure due to noncardiogenic and cardiogenic pulmonary edema 显示文摘 | Karmpaliotis D Kirtane AJ Ruisi CP | 2007 | Chest2007，131，4： | 1 |
| 14 | Theory Analysis of the Handover Challenge in Express Train Access Networks (ETAN)显示文摘To handle the handover challenge in Express Train Access Networks(ETAN).mobility fading effects in high speed railway environments should be addressed first.Based on the investigation of fading effects in this paper,we obtain two theoretical bounds:HOTiming upper bound and HO-Margin lower bound,which are helpful guidelines to study the handover challenge today and in the future.Then,we apply them to analyze performance of conventional handover technologies and our proposal in ETAN.This follow-up theory analyses and simulation experiment results demonstrate that the proposed handover solution can minimize handover time up to 4ms(which is the fastest one so far),and reduce HO-Margin to 0.16 dB at a train speed of 350km/h. | HU Guoqing HUANG Anpeng HE Ruisi AI Bo CHEN Zhangyuan | 2014 | China Communications2014，11，7： | 1 |
| 15 | Diagnostic and prognostic utility of brain natriuretic peptide in subjects admitted to the ICU with hypoxic respiratory failure due to noncardiogenic and cardiogenic pulmonary edema显示文摘 | Karmpaliotis D Kirtane AJ Ruisi CP | | 0，，： | 1 |
| 16 | Diagnostic and prognostic utility of brain natriuretic peptide in subjects admitted to the ICU with hypoxic respiratory failure due to noncardiogenic and cardiogenic pulmonary edema显示文摘 | Karmpaliotis D Kirtane AJ Ruisi CP | 2007 | Chest2007，131，4： | 1 |
| 17 | AI Assisted PHY in Future Wireless Systems: Recent Developments and Challenges显示文摘Nowadays,the rapid development of artificial intelligence(AI)provides a fresh perspective in designing future wireless communication systems.Innumerable attempts exploiting AI methods have been carried out,which results in the state-of-the-art performance in many different areas of wireless communications.In this article,we present the most recent and insightful developments that demonstrate the potentials of AI techniques in different physical layer(PHY)components and applications including channel characterization,channel coding,intelligent signal identification,channel estimation,new PHY for random access in massive machine-type communication(mMTC),massive multiple-input multiple-output(MIMO)power control and PHY resource management.Open challenges and potential future directions are identified and discussed along this research line. | Wei Chen Ruisi He Gongpu Wang Jiayi Zhang Fanggang Wang Ke Xiong Bo Ai Zhangdui Zhong | 2021 | China Communications2021，18，5： | 1 |
| 18 | Multi-Frequency Channel Characterization for Massive MIMO Communications in Lobby Environment显示文摘In this paper,a massive multiple input multiple output(MIMO)channel measurement campaign with two setups is conducted in an indoor lobby environment.In the first setup,two types of 256-element virtual uniform rectangular arrays(URAs),i.e.,the 4×64 virtual URA and the 64×4 virtual URA are used.The carrier frequency is 11 GHz;in the second setup,measurements are performed at 4,6,11,13,15,18 GHz at two different user locations.The channel characterization is presented by investigating the typical channel parameters,including average power delay profile(APDP),K factor,root mean square(RMS)delay spread,and coherence bandwidth.Moreover,the channel characteristics in angular domain are investigated by applying the space-alternating generalized expectation-maximization(SAGE)algorithm.The extracted multipath components(MPCs)are preliminarily clustered by visual inspection,and related to the interacting objects(IOs)in physical environment.Multipath structures at multiple frequency bands are examined.Direction spread of departure is estimated to evaluate the directional dispersion at the base station(BS)side.The results in this paper can help to reveal the propagation mechanisms in massive MIMO channels,and provide a foundation for the design and application of the practical massive MIMO system. | Jianzhi Li Bo Ai Ruisi He Mi Yang Zhangdui Zhong | 2019 | China Communications2019，16，9： | 1 |
| 19 | Application of grey clustering evaluations in coal railway transportation 显示文摘 | LI SZ ZHONGZ D RUISI H etal | 2012 | Kybernetes2012，41，： | 1 |
| 20 | V2V Channel Characterization and Modeling for Underground Parking Garages显示文摘As an important part of the intelligent transportation system(ITS),vehicle-to-vehicle(V2V)communication will improve the safety and efficiency of the transportation system by realizing the information transmission between vehicles.The underground parking garage is a typical scenario in V2V communication,but as an indoor environment,it is different from the conventional outdoor road scenarios significantly.Therefore,the purpose of this paper is to analyze and model the V2V channel characteristics of an underground garage.In this paper,a novel channel measurement carried out in the underground garage is first introduced.Considering that there are a lot of obstacles in an underground garage,the non-line-of-sight(NLoS)condition is taken into account during the measurement.Then,channel characteristic parameters,including large-scale fading,delay spread,and K-factor,are analyzed based on the measured data.In addition,we also carry out channel angle of arrival analysis,show the distribution of azimuth of arrival(AOA)and elevation of arrival(EOA)of multipath components(MPC),and conduct a statistical analysis of the angular spread.In the process of analysis and modeling,we focus on the differences between line-of-sight(LoS)and NLoS conditions.The analysis and conclusions presented in this paper will enrich the understanding of V2V channel and benefit the design of V2V communications. | Mi Yang Bo Ai Ruisi He Liang Chen Xue Li Jianzhi Li Zhangdui Zhong | 2019 | China Communications2019，16，9： | 1 |
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