Hui Zhao

Qingdao Municipal Center for Disease Control and Prevention

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i-10 index

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Co-Authors

Ru Li

Inner Mongolia University

Xiaodong Zhang

Beijing University of Posts and Telecommunications

Jinshan Shi

Inner Mongolia University

Xiaodong Zhang

Fudan University

Jiacheng Tan

Henan University

Han Deng

Houston Methodist

Frédéric Mallet

Université Côte d'Azur

Ludovic Apvrille

Télécom Paris

Shuqiang Yang

China University of Mining and Technology

Xiying Zhao

Shanxi University

Cooperative Institutions

Chinese Academy of Sciences

Huazhong University of Science and Technology

Beijing University of Posts and Telecommunications

Inner Mongolia University

Fudan University

Zhejiang University

Southeast University

Guangzhou Vocational College of Science and Technology

Aerospace Information Research Institute

Harbin Institute of Technology

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Research Field

Software Architecture Performance Modeling Based on SPA

Journal of Northeastern University (2002)

Hui Zhao

A new method for software architecture performance modeling was proposed. In order to describe the software performance model in stochastic Process Algebra(SPA in short) a new calculus was added to SPA. The developed SPA is named Extended Stochastic Process Algebra(ESPA in short). ESPA combines performance evaluation and software architecture modeling perfectly. A few new performance terms for software architecture were defined using reward structure derived from ESPA.

Software architecture description

Process calculus

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Feasibility study of relay in 3GPP LTE-advanced from a coexistence perspective

Wen Li Zhangchao Ma Shanshan Shen Jianyu Li Hui Zhao

Relay technologies have been actively studied and considered as one of the most important technical components in 3GPP LTE-Advanced. LTE Advanced networks with relays and traditional LTE-networks may operate in the same geographical area in adjacent channels. The coexistence issue between the two systems is becoming urgent in the standardization of relay in LTE-advanced. In this paper, the feasibility of relays in LTE-Advanced is studied from a coexistence perspective. We discuss the classification of relays and how they work in the current system in the first place. Then we present the Adjacent Channel Interference Ratio (ACIR) model and the relay coexistence methodology. Different coexistence scenarios when LTE and LTE-Advanced are deployed in adjacent frequency bands are then investigated. Finally, simulation results such as the throughput loss are given with different Radio Frequency (RF) parameters. Simulation results show that relay nodes can coexist with LTE systems under current RF system parameters.

LTE Advanced

10.1049/cp.2011.0690

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Design of video compression system based on DSP_FPGA

Chinese Control and Decision Conference (2009)

Hui Zhao SunHongxing

The video compression system is designed based on high speed Digital Signal Processing (DSP) and Field Programmable Gate Array(FPGA), and the implementation of JPEG2000 image compression algorithm is discussed. Hardware constitutes and working principle of the digital image compression system are introduced, and FPGA control logic, DSP peripheral circuit designing and the basic technology of image compression and structure of wavelet algorithm are modified are specifically discussed in detail. The system is favorable for its integrated functions, simple structures and flexible complier, and the high speed transmission and the mass data real-time compression are realized.

JPEG 2000

10.1109/ccdc.2009.5195161

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Data Lineage Construction Method for Multi-Chain-Based Data Assets Marketplaces

Hui Zhao Xiaodong Zhang Jinshan Shi Ru Li

Chain (unit)

10.1109/cscwd61410.2024.10580287

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Reentrancy Vulnerability Detection Based on Improved Attention Mechanism

Lecture notes in computer science (2024)

Haoran Xu Meikang Qiu Hui Zhao

Vulnerability

10.1007/978-981-97-5498-4_25

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Neighbor-aware based forwarding strategy in NDN-MANET

Xin Zhang Ru Li Hui Zhao

Named Data Networking (NDN) is a future Internet architecture, NDN forwarding strategy is a hot research topic in MANET. At present, there are two categories of forwarding strategies in NDN. One is the blind forwarding(BF), the other is the aware forwarding(AF). Data packet return by the way that one came forwarding strategy(DRF) as one of the BF strategy may fail for the interruptions of the path that are caused by the mobility of nodes. Consumer need to wait until the interest packet times out to request the data packet again. To solve the insufficient of DRF, in this paper a Forwarding Strategy, called FN based on Neighbor-aware is proposed for NDN MANET. The node maintains the neighbor information and the request information of neighbor nodes. In the phase of data packet response, in order to improve request satisfaction rate, node specifies the next hop node; Meanwhile, in order to reduce packet loss rate, node assists the last hop node to forward packet to the specific node. The simulation results show that compared with DRF and greedy forwarding(GF) strategy, FN can improve request satisfaction rate when node density is high.

Packet forwarding

IP forwarding

10.1109/icasid.2017.8285757

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Citations (7)

Reliability Model of Component Based Software System

Mini-micro Systems (2002)

Hui Zhao

By comparing of different architecture description language(ADL), it show the way to depict the component ,the connector and the software architecture using abstract algebra and first order logic. In that way it propose a reliability model for Component Based software. Following the result, it proves a method that the software system reliability can be computed with semi markov model. Finally it gives a virtual example of COBAR application to support the viewpoint.

Component (thermodynamics)

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MMSnap: An MMS based forensic system for recovering stolen phones

Hui Zhao Fuqiang Yang Ning Zhang Junxing Zhang

Mobile phone theft has been a growing problem of modern society, but it is difficult to recover lost phones because owners often have no clue to culprits. To address the problem, we propose MMSnap, a new forensic system based on Multimedia Messaging Service (MMS) for recovering stolen phones. When a user finds his phone has been stolen, he simply calls the phone using a predefined number saved in our system. No matter the culprit answers the call or not, once the system detects the number it secretly takes silent snapshots when he hangs up the phone. Even if the culprit replaces the SIM card, our system can still be triggered when he answers or makes a phone call, because it checks the state of the SIM card when processing each incoming or outgoing call. We leverage MMS to send snapshots, because it is designed to transmit multimedia content, supported by every smartphone, included in every wireless plan, and does not need any configuration. We have implemented the system on the Android platform and evaluated it using several smartphones. The experimental results show the system works effectively and takes less than one minute to gather forensic pictures.

Leverage (statistics)

Mobile phone

System call

10.1109/iceiec.2015.7284508

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BBCT: A Smart Blockchain-Based Bulk Commodity Trade System

Lecture notes in computer science (2022)

Jian Yang Yawen Lu Zhihui Lu Jie Wu Hui Zhao

10.1007/978-3-030-97774-0_17

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A Methodological Study of Evaluating the Dependability of SOA Software System

Chinese Journal of Computers (2010)

Hui Zhao

In order to meet increasing need for the method of measuring the dependability of computer system,this paper makes the effort to the methodological research of evaluating the dependability of SOA software system: An algebra model of SOA software system and its formal pattern for design a dependable SOA software system are introduced at first,all of the works give a fundamental theory for evaluating the dependability of SOA software system;Define the dependability of each attributes for typical SOA software element,the service component and the service operation,and the dependability of an element that compose with the each attributes.It argues that the SOA software system bears the Markov property if it is deigned under the dependable formal pattern.Based on this argument,it proposes a dependability model for SOA software system.In order to promote the application of the model,a case study is demonstrated.After comparing the difference profiles with other research work it concludes the advantage of the new dependability model.

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