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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 | Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China. | Kaiwen Li Tianxin Lin 无 Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang | 2015 | Asian Journal of Urology2015，2，2： | 21 |
| 3 | A Facile One-Step Synthesis of TiOe/Graphene Composites for Photodegradation of Methyl Orange显示文摘 | Haijiao Zhang Panpan Xu Guidong Du Zhiwen Chen Kokyo Oh Dengyu Pan Zheng Jiao | 2011 | Nano Research2011，4，3： | 21 |
| 4 | An energy minimization algorithm based on distributed dynamic clustering for long term evolution(LTE) heterogeneous networks显示文摘Energy saving has become an important issue in wireless communications from both environment and economic considerations. In this paper, an energy minimization algorithm based on distributed dynamic clustering(DDCEM) with lower complexity, higher performance, and better adaptability for heterogeneous network(Het Net) is proposed. A Het Net could be divided into several clusters, which is defined as one group of a network node and users served by the node. A energy efficient user association, which dynamically changes according to real-time energy efficiency(EE) evaluation with traffic load and location distribution of each cluster, can be employed to save consumed energy. Then, the optimal sleeping relay is found as follows. First,the sleeping probability cost of each relay station(RS) is computed and ranked based on the user traffic and the position distribution of each cluster, and the relay with minimum sleeping probability is selected to be switched off. Hence, the sleep node is selected taking into account the traffic load and location of the Evolved Node B(e NB) and all the RSs. The complexity of the algorithm is greatly reduced because the user association operation and network load evaluation are fulfilled cluster by cluster. Simulation results show that the proposed DDCEM strategy offers EE gain with low system complexity. | TONG En DING Fei PAN ZhiWen YOU Xiao Hu | 2015 | Science China(Information Sciences)2015，58，4： | 13 |
| 5 | A unified algorithm for mobility load balancing in 3GPP LTE multi-cell networks显示文摘3GPP long term evolution (LTE) is a promising candidate for the next-generation wireless network, which is expected to achieve high spectrum efficiency by using advanced physical layer techniques and flat network structures. However, the LTE network still faces the problem of load imbalance as in GSM/WCDMA networks, and this may cause significant deterioration of system performance. To deal with this problem, mobility load balancing (MLB) has been proposed as an important use case in 3GPP self-organizing network (SON), in which the serving cell of a user can be selected to achieve load balancing rather than act as the cell with the maximum received power. Furthermore, the LTE network aims to serve users with different quality-of-service (QoS) requirements, and the network-wide objective function for load balancing is distinct for different kinds of users. Thus, in this paper, a unified algorithm is proposed for MLB in the LTE network. The load balancing problem is first formulated as an optimization problem with the optimizing variables being cell-user connections. Then the complexity and overhead of the optimal solution is analyzed and a practical and distributed algorithm is given. After that, the proposed algorithm is evaluated for users with different kinds of QoS requirements, i.e., guaranteed bit rate (GBR) users with the objective function of load balance index and non-GBR (nGBR) users with the objective function of total utility, respectively. Simulation results show that the proposed algorithm leads to significantly balanced load distribution for GBR users to decrease the new call blocking rate, and for nGBR users to improve the cell-edge throughput at the cost of only slight deterioration of total throughput. | WANG Hao LIU Nan LI ZhiHang WU Ping PAN ZhiWen YOU XiaoHu | 2013 | Science China(Information Sciences)2013，56，2： | 7 |
| 6 | The Distribution of Different Clades of Seneca Valley Viruses in Guangdong Province,China显示文摘Seneca Valley virus (SVV), a newly determined etiological agent of vesicular disease in swine, causes porcine idiopathic disease and occasional acute death in piglets. Recently, an increased number of SVV infection cases have been reported in the United States (US) and China, resulting in significant economic losses to the swine industry. The first identification of SVV in China was reported in Guangdong Province, a major swine producing province. The cases of SVV were continuously reported in Guangdong in 2015 and 2016. However, the spread of SVV in Guangdong in 2017 remains unknown.In this study, we determined two new SVV strains, CH-GD-2017-1 and CH-GD-2017-2, from Guangdong. The genetic analysis suggested that the two Guangdong strains showed different characteristics to previous Guangdong strains. They showed lower nucleotide similarity with strains isolated in 2015 and 2016, and were more similar to the US strains.Phylogenetic analyses indicated that the new strains were clustered in a different clade with previous Guangdong strains.We found 28 mutated amino acids in the new strains, compared with the first Guangdong strain, SVV CH-01-2015. In the geographic analysis, we found that the US and China reported more SVV cases than other countries, and most of the SVV cases were reported in east and central China—of which, Guangdong Province is one of the major epidemic regions. In conclusion, our findings indicate that SVV continued to spread in Guangdong Province in 2017, and two different clades of SVVs have emerged in this region. | Pan Chen Fan Yang Weijun Cao Huanan Liu Keshan Zhang Xiangtao Liu Zhiwen Xu Zixiang Zhu Haixue Zheng | 2018 | Virologica Sinica2018，33，5： | 7 |
| 7 | Samarium doping improves luminescence efficiency of Cs_(3)Bi_(2)Br_(g)perovskite quantum dots enabling efficient white light-emitting diodes显示文摘Considering the toxicity problem of lead-based perovskite quantum dots(PQDs),the lead-free Cs_(3)Bi_(2)Br_(g)PQDs has been recognized as one of the promising candidates.However,the low photoluminescence quantum yields(PLQYs)hinder its practical application in optoelectronic devices.Here,w e successfully prepared Sm^(3+)ions doped Cs_(3)Bi_(2)Br_(g)PQDs with effective white light-emission by modified ligandassisted recrystallization method.The realization of white light-emission is attributed to the broadband blue emission of excitons and the red emission(^(4)G_(5/2)-^(6)HJ(J=5/2,7/2,9/2))of Sm^(3+)ions for Sm^(3+)ions doped Cs_(3)Bi_(2)Br_(g)PQDs.More importantly,compared with the undoped Cs_(3)Bi_(2)Br_(g)PQDs,the PLQYs of Sm^(3+)ions doped Cs_(3)Bi_(2)Br_(g)PQDs are improved from 10.9%to 20.8%,and the anti-water stability is also obviously improved.Finally,the Sm^(3+)ions doped PQDs based white light-emitting diodes(LEDs)with luminous efficiency of 12.6 lm/W were explored,which indicates that there is a potential prospect of lead-free PQDs in white light lighting application. | Yongsheng Zhu Jinyang Zhu Haizhen Song Jinshu Huang Zhiwen Lu Gencai Pan | 2021 | Journal of Rare Earths2021，39，4： | 7 |
| 8 | QoS and channel state aware load balancing in 3GPP LTE multi-cell networks显示文摘In this paper,we investigate the load balancing problem with the consideration of different qualityof-service(QoS) and channel state in 3GPP long term evolution(LTE) multi-cell networks.Load imbalance among nearby cells often causes inefficient utilization of the system resources.Then in overloaded cells,users cannot get satisfied services for short resources,while in idle cells,there is plenty of unoccupied resources.However,switching users only for load balancing with no consideration of channel state often results in aggressive handover of users,which may occupy too many resources in their target cells and deteriorate the network efficiency.Thus,how to efficiently perform load balancing with the consideration of channel state becomes an important issue.Meanwhile,LTE network aims to serve users with different QoS requirements,which should be taken into account when performing load balancing.Thus we propose a multi-objective optimization problem,whose objectives are load balancing index and network average load for users with QoS requirements and a unified utility function for users without QoS requirements.The constraints are physical resource limits and users' QoS demands.Then we analyze its complexity and propose a practical algorithm,load balancing,with the consideration of different QoS requirements and channel state services(LBQC).Extensive simulations are conducted.The results show that the proposed algorithm can approximate the optimal algorithm efficiently,and leads to significantly better performances than load balancing with no consideration of channel state,e.g.a lower new call blocking rate with a fewer system resources occupation for users with QoS requirements,a higher cell edge throughput and total throughput for users without QoS requirements. | LI ZhiHang WANG Hao PAN ZhiWen LIU Nan YOU XiaoHu | 2013 | Science China(Information Sciences)2013，56，4： | 6 |
| 9 | Lifetime maximization routing with network coding in wireless multihop networks显示文摘In this paper, we consider the lifetime maximization routing with network coding in wireless mul- tihop networks. We first show that lifetime maximization with network coding is different from pure routing, throughput maximization with network coding and energy minimization with network coding. Then we formulate lifetime maximization problems in three different cases of (i) no network coding, (ii) two-way network coding, and (iii) overhearing network coding. To solve these problems, we use flow augmenting routing (FA) for the first case, and then extend the FA with network coding (FANC) by using energy minimized one-hop network coding. After that, we investigate the influence of parameters of FANC, evaluate the performance of FANC with two-way and overhearing network coding schemes and compare it with that without network coding under two different power control models, namely, protocol and physical ones. The results show that the lifetime can be improved significantly by using network coding, and the performance gain of network coding decreases with the increase of flow asymmetry and the power control ability. | DING LiangHui WU Ping WANG Hao PAN ZhiWen YOU XiaoHu | 2013 | Science China(Information Sciences)2013，56，2： | 6 |
| 10 | Coverage Optimization of LTE Networks Based on Antenna Tilt Adjusting Considering Network Load显示文摘In this paper,we investigate the coverage optimization for LTE networks considering the network load. The network coverage is defined as the number of served users of evolved Node B(eNB)which is determined by e NBs' antenna tilt angles(ATA). The coverage is optimized by optimizing the number of served users based on the Modified Particle Swarm Optimization(MPSO)algorithm. Simulation results show that both the number of served users by each e NB and the system throughput are significantly increased. As well,the average load and the bandwidth efficiency of the network are improved. | NhuQuan Phan ThiOanh Bui Huilin Jiang Pei Li Zhiwen Pan Nan Liu | 2017 | China Communications2017，14，5： | 4 |
| 11 | Prophet model and Gaussian process regressionbased user traffic prediction in wireless networks显示文摘User traffic prediction is an important topic for wireless network operators.A user traffic prediction method based on Prophet and Gaussian process regression is proposed in this paper.The proposed method first employs discrete wavelet transform to decompose the user traffic time series to high-frequency component and low-frequency component.The low-frequency component bears the long-range dependence of user network traffic,while the high-frequency component reveals the gusty and irregular fluctuations of user network traffic.Then Prophet model and Gaussian process regression are applied to predict the two components respectively based on the characteristics of the two components.Experimental results demonstrate that the proposed model outperforms the existing time series prediction method. | Yu LI Ziang MA Zhiwen PAN Nan LIU Xiaohu YOU | 2020 | Science China(Information Sciences)2020，63，4： | 4 |
| 12 | A power adjustment based e ICIC algorithm for hyper-dense Het Nets considering the alteration of user association显示文摘This paper evaluates power adjustment based enhanced inter-cell interference coordination(e ICIC)problem in the hyper-dense Het Net under the practical serving cell selection rule where each user selects the base station with the strongest received signal power as its serving cell while the alteration of the serving cell happens during the power adjusting process. In this paper, the e ICIC problem is solved by cooperatively adjusting the transmission power of all small cells. A power adjustment method based on modified particle swarm optimization(MPSO) is proposed to tackle the NP-hard e ICIC problem caused by the alteration of the serving cell, and considering the drawbacks of MPSO, an improved MPSO is proposed for effective algorithm.Local search and multi-restart process are introduced in the improved MPSO based e ICIC algorithm to guarantee the local and then global optimality, and the convergence conditions and the global optimality are proved by mathematical deduction to guide the selection of the parameters. Simulations show that, while considering the fifty-picocell case as an example, the proposed improved MPSO based e ICIC algorithm can increase the system throughput by 66.0% compared with the full power transmission, and compared with the existing schemes which do not alter the serving cells, the proposed algorithm can improve the system throughput by 32.2%. By improving MPSO, the consequent algorithm costs less iteration time to achieve higher system throughput, and it is effective and feasible to solve the e ICIC problem in the hyper-dense Het Net. | JIANG HuiLin TONG En LI ZhiHang PHAN NhuQuan PAN ZhiWen LIU Nan | 2015 | Science China(Information Sciences)2015，58，8： | 3 |
| 13 | Three novel opportunistic scheduling algorithms in CoMP-CSB scenario显示文摘Coordinated scheduling/beamforming(CSB),which belongs to the coordinated multi-point(CoMP) transmission,has received lots of attention recently due to its great potential to mitigate inter-cell interference(ICI) and to increase the cell-edge throughput,and meanwhile it only requires limited base station cooperation and is easy to implement.However,to the best of our knowledge,there are no effective scheduling algorithms with low complexity and overhead in CoMP-CSB scenario as yet.Thus,in this paper,we propose three novel opportunistic scheduling algorithms in CoMP-CSB scenario.All of them jointly consider the intended channel condition of the scheduled user from its serving cell and the orthogonality between the intended channel and the corresponding interference channels to concurrently scheduled users in nearby cells,thus exploiting multi-user diversity(MUD) and mitigating ICI at the same time.Algorithm 1 cooperatively chooses the most orthogonal user pair within a candidate user set in which all users have a large local channel feedback,while Algorithm 2 concurrently schedules the user pair with the largest ratio between the local channel feedbacks and the aforementioned orthogonality within the same candidate user set.Algorithm 3 performs in the way similar to the proportional fairness scheduling,while making a proper modification for its usage in CoMP-CSB scenario.The performance of the proposed scheduling algorithms are evaluated through simulation.Results show that,they all can significantly enhance the received signal to interference plus noise ratio(SINR) with relatively good fairness guarantee,thus achieving larger throughputs and utilities than several well-known scheduling algorithms.Algorithm 2 even outperforms Algorithm 1 when the aforementioned candidate user set is big enough in size and has a bit more overhead/complexity.Furthermore,Algorithms 3 is the best one among all the three proposed algorithms,but it requires more overhead/complexity than Algorithm 1 and 2.Finally,we give the optimal parameter for all of the three proposed algorithms,which can make a good tradeoff between performance and overhead/complexity. | WANG Hao LIU Nan WU Ping PAN ZhiWen YOU XiaoHu | 2013 | Science China(Information Sciences)2013，56，8： | 2 |
| 14 | Density-based user clustering in downlink NOMA systems显示文摘Non-orthogonal multiple access(NOMA)technology,which can effectively improve the bandwidth utilization,is one of the key technologies in the next-generation wireless communication systems.In the downlink multiple antenna NOMA systems,user clustering is one of the problems that must be solved.In this paper,we focus on the user clustering that maximizes the system sum rate.First,a user clustering method based on the density-based spatial clustering of applications with noise(DBSCAN)algorithm is proposed for static user scenarios.Then an improved low-complexity dynamic clustering method is further developed for dynamic user scenarios.Simulation results show that compared with existing clustering methods,the DBSCAN-based method has better clustering performance in complex static user scenarios,and the proposed dynamic clustering method performs close to completely re-executing the DBSCAN-based method but with lower complexity. | Hanliang YOU Yaoyue HU Zhiwen PAN Nan LIU | 2022 | Science China(Information Sciences)2022，65，5： | 2 |
| 15 | Insight onfractal assessment strategies for tin dioxide thin films 显示文摘 | Zhiwen Chen Dengyu Pan Bing Zhao | 2012 | ACS nano2012，4，： | 1 |
| 16 | Hot deformation kinetics of magnesium alloy AZ31显示文摘 | Wang Lingyun Huang Guangjie Fan Yonge Lu Zhiwen Pan Fusheng | 2006 | Journal of Wuhan University of Technology - Mater Sci Ed2006，，3： | 1 |
| 17 | Downlink SINR and Rate Distribution of Ultra-Dense Het Nets with Burst Traffic显示文摘SINR distribution and rate overage distribution are crucial for optimization of deployment of Ultra-dense Het Nets.Most existing literatures assume that BSs have full queues and full-buffer traffic.In fact,due to ultra-dense deployment of small cells,traffic in small cell varies dramatically in time and space domains.Hence,it is more practical to investigate scenario with burst traffic.In this paper,we consider a two-tier non-uniform ultra-dense Het Net with burst traffic,where macro BSs are located according to Poisson Point Process(PPP),and pico BSs are located according to Poisson Hole Process(PHP).The closed-form expressions of SINR distribution and rate distribution are derived,and then validated through simulation.Our study shows that different from the result of full buffer case,the SINR distribution and rate distribution of users depend on the average transmission probabilities of BSs in burst traffic case. | Xin Liu Zhiwen Pan Nan Liu Xiaohu You | 2016 | China Communications2016，13，9： | 1 |
| 18 | Perovskite films with gradient bandgap for self-powered multiband photodetectors and spectrometers显示文摘Bandgap-graded materials present varying spectral responses at different positions,making them possible to be used as an alternative to photoactive materials array in multi-spectral responsive devices,thus miniaturizing the apparatus.However,the preparation of bandgap-graded materials usually requires complicated deposition process.Here we report a facile lowtemperature solution process to make films with lateral bandgap gradients,which form spontaneously via self-spreading and interdiffusion of solutions.We show lead halide perovskite films with MAPbCl_(3)-MAPbBr_(3)and MAPbBr_(3)-MAPbI_(3)gradients,which exhibit light absorption onsets ranging from 410 to 781 nm.The bandgap-graded films were used to make self-powered multiband photodetectors,which show different spectral responses at different positions without applying bias voltage.Furthermore,self-powered spectrometers were made by using the multiband photodetectors. | Chuantian Zuo Lixiu Zhang Xiyan Pan He Tian Keyou Yan Yuanhang Cheng Zhiwen Jin Chenyi Yi Xiaoliang Zhang Wu-Qiang Wu Qinye Bao Liyuan Han Liming Ding | 2023 | Nano Research2023，16，7： | 1 |
| 19 | BS sleeping strategy for energy-delay tradeoff in wireless-backhauling UDN显示文摘Ultra-dense network (UDN) has been recognized as a promising technology for 5G. Although turning off low-load base stations (BSs) can improve energy efficiency, it may cause degradation of delay performance. This makes energy-delay tradeoff (EDT) an important topic. In this paper, a theoretical framework for EDT, in wireless-backhauling UDN, is developed. First, we investigate association probabilities of UEs and transmission probabilities of BSs. Expressions for energy consumption and network packet delay are obtained and the impact that BS sleeping ratio has on energy consumption and packet delay are analyzed.Then, we formulate the EDT problem as a cost minimization problem to select the optimal set of sleeping small cells. To solve the EDT optimization problem, a locally optimal sleeping ratio for EDT is obtained using the dynamic gradient iteration algorithm and we prove that it can converge to the global optimal sleeping ratio. Then, queue-aware and channel-queue-aware sleeping strategies are proposed to find the optimal set of sleeping small cells according to the optimal sleeping ratio. We then see that the simulation and numerical results confirm the effectiveness of the proposed sleeping schemes. | Pei LI Yi SHEN Faisal SAHITO Zhiwen PAN Xiaohu YOU | 2019 | Science China(Information Sciences)2019，62，4： | 1 |
| 20 | Analysis of Oral Microbiota in Children with Dental Caries by PCR-DGGE and Barcoded Pyrosequencing显示文摘 | Zongxin Ling Jianming Kong Peng Jia Chaochun Wei Yuezhu Wang Zhiwen Pan Wujing Huang Lanjuan Li Hui Chen Charlie Xiang | 2010 | Microbial Ecology2010，，3： | 1 |
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