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| 1 | Malicious code passive propagation model and vaccine distribution model of P2P networks显示文摘To fight against malicious codes of P2P networks, it is necessary to study the malicious code propagation model of P2P networks in depth. The epidemic of malicious code threatening P2P systems can be divided into the active and passive propagation models and a new passive propagation model of malicious code is proposed, which differentiates peers into 4 kinds of state and fits better for actual P2P networks. From the propagation model of malicious code, it is easy to find that quickly making peers get their patched and upgraded anti-virus system is the key way of immunization and damage control. To distribute patches and immune modules efficiently, a new exponential tree plus (ET+) and vaccine distribution algorithm based on ET+ are also proposed. The performance analysis and test results show that the vaccine distribution algorithm based on ET+ is robust, efficient and much more suitable for P2P networks. | Xiaolong Xu Ruchuan Wang Fu Xiao | 2010 | Journal of Systems Engineering and Electronics2010，21，1： | 9 |
| 2 | Multi-path QoS Routing Using Genetic Algorithm for LEO Satellite Networks显示文摘 | RAO Yuan WANG Ruchuan | 2011 | Chinese Journal of Electronics2011，20，1： | 8 |
| 3 | Coverage Enhancement Strategy Based on Novel Perception and Co-evolution for Multimedia Sensor Networks显示文摘 | XIAO Fu WANG Jing SUN Lijuan WANG Ruchuan GUO Jian | 2013 | Chinese Journal of Electronics2013，22，1： | 6 |
| 4 | Load Balanced Coding Aware Multipath Routing for Wireless Mesh Networks显示文摘The growth of network coding opportunities is considered the unique optimization goal by most current network coding based routing algorithms for wireless mesh networks. This usually results in flows aggregation problem in areas with coding opportunities, and degrades the network performance. This paper proposes a Load balanced coding aware multipath routing(LCMR)for wireless mesh networks. To facilitate the evaluation of discovered multiple paths and the tradeoffs between coding opportunity and load balancing, a novel routing metric, Load balanced coding aware routing metric(LCRM) is presented, which considers the load degree of nodes when detects coding opportunities. LCMR could spread traffic over multipath to further balance load. Simulation results demonstrate that LCMR could evenly spread the traffic over the network with increasing network throughput in a heavy load at the expense of some coding opportunities. | SHAO Xing WANG Ruchuan HUANG Haiping SUN Lijuan | 2015 | Chinese Journal of Electronics2015，24，1： | 6 |
| 5 | Research on Data Privacy Protection Algorithm with Homomorphism Mechanism Based on Redundant Slice Technology in Wireless Sensor Networks显示文摘Wireless transmission method in wireless sensor networks has put forward higher requirements for private protection technology. According to the packet loss problem of private protection algorithm based on slice technology, this paper proposes the data private protection algorithm with redundancy mechanism, which ensures privacy by privacy homomorphism mechanism and guarantees redundancy by carrying hidden data. Moreover,it selects the routing tree generated by CTP(Collection Tree Protocol) as routing path for data transmission. By dividing at the source node, it adds the hidden information and also the privacy homomorphism. At the same time,the information feedback tree is established between the destination node and the source node. In addition, the destination node immediately sends the packet loss information and the encryption key via the information feedback tree to the source node. As a result,it improves the reliability and privacy of data transmission and ensures the data redundancy. | Peng Li Chao Xu He Xu Lu Dong Ruchuan Wang | 2019 | China Communications2019，16，5： | 4 |
| 6 | Surface Coverage Algorithm in Directional Sensor Networks for Three-Dimensional Complex Terrains显示文摘Coverage is an important issue in the area of wireless sensor networks, which reflects the monitoring quality of the sensor networks in scenes. Most sensor coverage research focuses on the ideal two-dimensional(2-D) plane and full three-dimensional(3-D) space. However, in many real-world applications, the target field is a3-D complex surface, which makes conventional methods unsuitable. In this paper, we study the coverage problem in directional sensor networks for complex 3-D terrains, and design a new surface coverage algorithm. Based on a 3-D directional sensing model of nodes, this algorithm employs grid division, simulated annealing, and local optimum ideas to improve the area coverage ratio by optimizing the position coordinates and the deviation angles of the nodes, which results in coverage enhancement for complex 3-D terrains. We also conduct extensive simulations to evaluate the performance of our algorithms. | Fu Xiao Xiekun Yang Meng Yang Lijuan Sun Ruchuan Wang Panlong Yang | 2016 | Tsinghua Science and Technology2016，21，4： | 4 |
| 7 | A Routing Scheme for Data Aggregation Based on Ant-like Agent in Wireless Sensor Networks显示文摘 | YE Ning WANG Ruchuan SUN Lijuan | 2007 | Chinese Journal of Electronics2007，16，3： | 3 |
| 8 | Research on Security of Key Algorithms in Intelligent Driving System显示文摘With the rapid development of the smart driving technology, the security of smart driving algorithms is becoming more and more important. Four core smart driving algorithms are determined by studying the architecture of smart driving algorithm. These algorithms comprise local path planning, pedestrian detection, lane detection and obstacle detection. The security issues of these algorithms are investigated by closely examining the work carried out by the algorithms. We found that there are vulnerabilities in all four algorithms. These vulnerabilities can cause abnormality and even road accidents for the smart cars. The final experiment shows that the vulnerabilities of these algorithms do exist under certain circumstances and therefore have high security risks. This study will lay a foundation to improve the security of the smart driving system. | LIU Shangdong WU Ye JI Yimu CHEN Chen BI Qiang JIAO Zhipeng GONG Jian WANG Ruchuan | 2019 | Chinese Journal of Electronics2019，28，1： | 3 |
| 9 | Robust and Passive Motion Detection with COTS WiFi Devices显示文摘Device-free Passive(DfP) detection has received increasing attention for its ability to support various pervasive applications. Instead of relying on variable Received Signal Strength(RSS), most recent studies rely on finer-grained Channel State Information(CSI). However, existing methods have some limitations, in that they are effective only in the Line-Of-Sight(LOS) or for more than one moving individual. In this paper, we analyze the human motion effect on CSI and propose a novel scheme for Robust Passive Motion Detection(R-PMD). Since traditional low-pass filtering has a number of limitations with respect to data denoising, we adopt a novel Principal Component Analysis(PCA)-based filtering technique to capture the representative signals of human motion and extract the variance profile as the sensitive metric for human detection. In addition, existing schemes simply aggregate CSI values over all the antennas in MIMO systems. Instead, we investigate the sensing quality of each antenna and aggregate the best combination of antennas to achieve more accurate and robust detection. The R-PMD prototype uses off-the-shelf WiFi devices and the experimental results demonstrate that R-PMD achieves an average detection rate of 96.33% with a false alarm rate of 3.67%. | Hai Zhu Fu Xiao Lijuan Sun Xiaohui Xie Panlong Yang Ruchuan Wang | 2017 | Tsinghua Science and Technology2017，22，4： | 3 |
| 10 | Intrusion Detection Methods Based on Incomplete RFID Traces显示文摘According to the Radio frequency identification(RFID) tag cloning attack problems of RFID system and the existing problems of intrusion detection research based on incomplete RFID traces, this paper proposes a method of intrusion detection by combining the Markov chain technology and probability statistics technology. We use this method to calculate the threshold that is used to determine whether the tag event is a cloning tag intrusion one. Current research focuses on RFID intrusion detection under the condition of complete RFID traces, such as encryption algorithm improvement, tag authentication protocol improvement, and track and trace technology in RFID supply chain. RFID traces are occasionally to be incomplete, which causes the above methods to be inefficient. Our method proposed in this paper is the solution to incomplete RFID traces which makes up for the study of RFID intrusion detection research. | LI Peng WANG Zhen XU He ZHU Feng WANG Ruchuan | 2017 | Chinese Journal of Electronics2017，26，4： | 3 |
| 11 | Dynamical Trust Construction Schema with Fuzzy Decision in P2P Systems显示文摘 | WANG Yang WANG Ruchuan HAN Zhijie | 2009 | Chinese Journal of Electronics2009，18，3： | 3 |
| 12 | An Analysis and Proof on Self-Similarity Property of Flash P2P Internet Video Traffic显示文摘In order to study the amount of bandwidth resource loss caused by flash P2 P technique, its influence on network load and its maintenance cost, the characteristic of Internet traffic of flash P2 P is studied. On the basis of analysis of features of Real time media flow protocol(RTMFP), the traffic of flash P2 P can be identified from the Internet traffic. By extraction and analysis of the traffic of the three largest online video content providers in China(Youku, Iqyi and Sohu Video) and the calculation of probability distribution of the traffic, it is found that the transmission time of flash P2 P traffic and the transmission time interval obeys the heavy-tailed distribution. This accounts for the self-similarity of the flash P2 P traffic. To better explain the phenomenon, the long-range dependent model is established based on the current traffic. By the established mathematical model, it is strictly proved that flash P2 P traffic has self-similar characteristic. | JI Yimu YUAN Yongge HAN Zhijie WANG Hao HAN Lei SUN Yanfei WANG Ruchuan | 2015 | Chinese Journal of Electronics2015，24，1： | 3 |
| 13 | A Classification Algorithm Based on Artificial Immune显示文摘 | CHEN Yunfang WANG Ruchuan | 2008 | Chinese Journal of Electronics2008，17，3： | 3 |
| 14 | Low-power task scheduling algorithm for large-scale cloud data centers显示文摘How to effectively reduce the energy consumption of large-scale data centers is a key issue in cloud computing. This paper presents a novel low-power task scheduling algorithm(LTSA)for large-scale cloud data centers. The winner tree is introduced to make the data nodes as the leaf nodes of the tree and the final winner on the purpose of reducing energy consumption is selected. The complexity of large-scale cloud data centers is fully consider, and the task comparson coefficient is defined to make task scheduling strategy more reasonable. Experiments and performance analysis show that the proposed algorithm can effectively improve the node utilization, and reduce the overall power consumption of the cloud data center. | Xiaolong Xu Jiaxing Wu Geng Yang Ruchuan Wang | 2013 | Journal of Systems Engineering and Electronics2013，24，5： | 2 |
| 15 | A QoS-aware routing algorithm based on ant-cluster in wireless multimedia sensor networks显示文摘QoS-aware routing algorithm is important in wireless multimedia sensor networks. This paper formulates a generalized QoS-aware routing model on the basis of multiple routing metrics and priorities of packets. We first introduce a 2D plain-based routing algorithm IPACR which improves the standard ant colony algorithm by optimizing the initial distribution of artificial pheromone in order to accelerate the algorithm convergence rate. Then a clustering-based routing algorithm ICACR is presented which can be well applied in a large scale network. ICACR is a variation of IPACR because it can be suitable for clustering cases to satisfy the larger scale situations. Both the numerical algorithm performance analysis and simulation of IPACR and ICACR are given. The results show that ICACR outperforms IPACR in terms of both network lifetime and QoS-aware routing metrics in large scale wireless multimedia sensor networks. Moreover, the simulation based on the real video traces shows that by extending the multi-path to ICACR for different priorities of video frames better performance can be achieved. | HUANG HaiPing CAO Xiao WANG RuChuan WEN YongGang | 2014 | Science China(Information Sciences)2014，57，10： | 2 |
| 16 | Real-Time Method for DDoS Attacks Detection Based on Self-Similarity and Wavelet Analysis显示文摘 | REN Xunyi WANG Ruchuan Qi Zhenghua | 2008 | Chinese Journal of Electronics2008，17，1： | 2 |
| 17 | Secure Localization Technology Based on Dynamic Trust Management in Wireless Sensor Networks显示文摘Wireless sensor networks have critical applications in various fields, and the algorithm of their secure localization has become a vital technology to support a network. In the light of the self-organization, random deployment and dynamic topology, the localization process is vulnerable to various kinds of malicious attacks. The model of dynamic trust management for a given node is proposed to deal with security concerns in wireless sensor networks. The trust computation is divided into three stages, which are the stage of trust initialization,trust establishment, and trust evolution. The initial value of a global trust relationship is established through a corresponding global trust relation graph in the initial stage of trust. The trust value of each node is calculated by the attribute value in the stage of trust establishment. In the evolution of trust, the iterative process of trust value is accelerated via the finite state machine. Compared with the existing wireless sensor networks, simulation results show that the proposed security localization technology method can resist many kinds of attacks with low communication and time consumption. | LI Peng YU Xiaotian XU He WANG Ruchuan | 2021 | Chinese Journal of Electronics2021，30，4： | 2 |
| 18 | T-QoS-aware based parallel ant colony algorithm for services composition显示文摘In order to make cloud users get credible, high-quality composition of services, the trust quality of service aware(TQoS-aware) based parallel ant colony algorithm is proposed. Our approach takes the service credibility as the weight of the quality of service, then calculates the trust service quality T-QoS for each service, making the service composition situated in a credible environment. Through the establishment on a per-service T-QoS initialization pheromone matrix, we can reduce the colony's initial search time. By modifying the pheromone updating rules and introducing two ant colonies to search from different angles in parallel,we can avoid falling into the local optimal solution, and quickly find the optimal combination of global solutions. Experiments show that our approach can combine high-quality services and the improvement of the operational success rate. Also, the convergence rate and the accuracy of optimal combination are improved. | Lin Zhang Kaili Rao Ruchuan Wang | 2015 | Journal of Systems Science & Complexity2015，28，5： | 2 |
| 19 | The wireless sensor network localization algorithm based on improved pattern genetic algorithm 显示文摘 | HUANG Haiping CAI Qiwang WANG Ruchuan | 2011 | Jour- nal of Computational Information Systems2011，7，9： | 1 |
| 20 | Agent-based load balancing routing for LEO satellite networks显示文摘 | Rao Yuan Wang Ruchuan | 2010 | Computer Networks2010，54，17： | 1 |
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