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4th International Conference on Human-Centric Computing, HumanCom'11 and the 6th International Conference on Embedded and Multimedia Computing, EMC'11

作者： Zhang, Yang Wang, Yun School of Computer Science and Engineering Southeast University Key Laboratory of Computer Network and Information Integration MOE Nanjing China

ISBN: (纸本)9789400721043

Broadcast is a hot topic in wireless sensor network research. The main challenges are from network instability and complexity of communication collision. Currently, the broadcast protocols for sensor network focus on reducing the energy overhead without concerning thoroughly about the delay issue. In some real-time scenarios, these broadcast protocols are not very appropriate to some extent. This paper proposes a new kind of rapid broadcast protocol for sensor network, which introduces the concept of the umbrella topology. The simulation experiment shows that an umbrella topology structure is more efficient to solve the delay issue. Finally, we compare the protocol we proposed with the simple broadcast protocol called flooding. The result shows that the fast broadcast protocol can reduce the number of transmissions and decrease the routing delay. © 2011 Springer Science+Business Media B.V.

关键词： Wireless sensor networks

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Traffic classification based on port connection pattern

Traffic classification based on port connection pattern

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2011 International Conference on computer Science and Service System, CSSS 2011

作者： Cheng, Guang Wang, Song Key Laboratory of Computer Network and Information Integration Southeast University Ministry of Education Nanjing 210096 China

ISBN: (纸本)9781424497638

While the traditional Web, Email and other Internet applications are still used large-scale, Internet applications, such as typical P2P resource sharing, streaming, games, instant messaging and other new applications emerging, is generating the rapid growth traffic. Connection pattern approach is to observe and identify connection patterns of host behavior at the transport layer. This method has no access to packet payload, no knowledge of port numbers and no additional information other than what current flow collectors provide. But traffic classification method based on host connection pattern can't distinguish some similar applications provided by one server. This paper analyzes the connection pattern between servers for SMTP, POP3, Web, BT traffic, and the distribution of simultaneous connections for each server port, and then propose a new traffic classified approach based on port connection pattern and the simultaneous connection number. The classified method can distinguish WEB, SMTP, POP3, and BT traffic each port in a server without any knowledge of port. The experimental result shows that this method is effective. © 2011 IEEE.

关键词： Peer to peer networks

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Alloy-based verification of Web service composition

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Tongxin Xuebao/Journal on Communications 2012年第SUPPL.2期33卷 1-8页

作者： Cao, Jiu-Xin Wu, Jiang-Lin Wang, Guo-Jin Liu, Bo Yang, Peng-Wei Dong, Dan School of Computer Science and Engineering Southeast University Nanjing 210096 China Key Laboratory of Computer Network and Information Integration Ministry of Education Southeast University Nanjing 210096 China Huawei Technologies Co. Nanjing 210012 China

Service composition was the core problem of service computing, the validity and reliability of service composition had become the premise of service execution. A method was presented which utilizes the finite state machine (FSM) to model the business process's state transitions, and described the required properties with Alloy language. Then, Alloy model was used to formalize the service FSM and the required properties of the system. Finally, Alloy Analyzer was used to verify the model that whether the required properties were satisfied. It is shown that the method of Alloy-based verification of the service composition is of good feasibility.

关键词： Alloys

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Multi-agent communication model and service manipulation in network service management

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作者： Liu, Bo Cao, Jiuxin Luo, Junzhou School of Computer Science and Engineering Southeast University Nanjing 211189 China Key Laboratory of Computer Network and Information Integration of Ministry of Education of China China

ISBN: (纸本)9783642256578

Agent technology has played an important role in distributed network application and agent communication model is an inevitable problem in multi-agent system. We propose a "Shaikh-Guide" based agent communication model (SGACM) to support asynchronous communication, and based on this communication mechanism, we present the matching algorithms to decompose the whole network service into several groups of sub-tasks. During the course of decomposition, different priorities are assigned to sub-tasks. This paper introduces a network service management scenario to support agent communication and task processing. An experiment has been done with the communication model and algorithms, the results of which demonstrate the advantage of the algorithms. As an application example, the process of network multimedia service management is presented finally. © 2011 Springer-Verlag Berlin Heidelberg.

关键词： Multimedia services

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An evolutionary algorithm for no-wait flowshop problems with flowtime minimization

An evolutionary algorithm for no-wait flowshop problems with...

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International Conference on computer Supported Cooperative Work in Design

作者： Zhu, Xia Li, Xiaoping Wang, Qian School of Computer Science and Engineering Southeast University Nanjing China Key Laboratory of Computer Network and Information Integration Ministry of Education Southeast University Nanjing China

ISBN: (纸本)9781457703874

In this paper, no-wait flow shop scheduling problem with flowtime minimization is considered. Objective increment properties are analyzed and proved for fundamental operations of heuristics. With these properties, whether a new generated schedule is better or worse than the original one is only evaluated by objective increments, instead of completely calculating objective values as the traditional algorithms do, so that the computational time can be considerably reduced. An evolutionary algorithm (EA) is proposed for the considered problem. The initial population with two members is generated by different heuristics. After crossover, the disturb cycles which consist of a mutation operator and strengthen approaches are conducted to the offspring. EA is compared with the best-so-far algorithms SRTS, PH1p and DPSOvnd on 110 benchmark instances. Experimental results show that EA outperforms the others on effectiveness but is a little worse than DPSOvnd on efficiency. © 2011 IEEE.

关键词： Evolutionary algorithms

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Web service selection with quantitative and qualitative user preferences

Web service selection with quantitative and qualitative user...

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2011 IEEE/WIC/ACM International Conference on Web Intelligence, WI 2011

作者： Wang, Hongbing Liu, Weihong Key Lab of Computer Network and Information Integration School of Computer Science and Engineering Southeast University 211189 China School of Computer Science Anhui Unversity of Technology 243002 China

ISBN: (纸本)9780769545134

Most existing approaches of Web service selection with user preferences are either quantitative or qualitative. However, using a qualitative or quantitative approach alone cannot handle all the non-functional properties(NFPs). To solve this problem, we present an approach of service selection with quantitative and qualitative user preferences, where qualitative preferences are modeled as a TCP-net and quantitative preferences are specified by using arbitrary positive numbers. Our approach consists of two steps, that is, qualitative selection based on qualitative preferences and quantitative selection based on quantitative preferences. We prove its effectiveness and verify its efficiency through extensive experiments. © 2011 IEEE.

关键词： Websites

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Cooperative Agent-based QoS Framework for heterogeneous networks

Cooperative Agent-based QoS Framework for heterogeneous netw...

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2011 International Conference on information Technology, computer Engineering and Management Sciences, ICM 2011

作者： Ding, Feng Zhang, Shuai Wang, Heng Huang, Songhua Tao, Jun Key Laboratory of Science and Technology on Information Systems Engineering Nanjing Research Institute of Electronics Engineering Nanjing China Key Laboratory of Computer Network and Information Integration of Ministry of Education Southeast University Nanjing China

ISBN: (纸本)9780769545226

With the fast development of network technology and expansion of the network scale, the heterogeneity of Internet makes the Quality of Service (QoS) guarantee techniques even more challenging. In this paper the state-of-the-art of QoS guarantee techniques is first reviewed, and a new Cooperative Agent-based QoS Framework (CAQF) for heterogeneous networks is proposed, which integrates the technologies of QoS-adaptive cooperation, situation awareness, admission control, routing, packet scheduling and resource management. It can be used for intra-domain, inter-domain's QoS guarantee in the heterogeneous networks. Procedure simulation results show that CAQF can achieve expected functionality, while demonstrating the feasibility and universality of the framework for distributed end-to-end QoS cooperation. © 2011 IEEE.

关键词： Quality of service

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Anonymous authentication-oriented vehicular privacy protection technology research in VANET

Anonymous authentication-oriented vehicular privacy protecti...

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International Conference on Electrical and Control Engineering (ICECE)

作者： Shuai Zhang Jun Tao Yijia Yuan Key Laboratory of Computer Network and Information Integration of Ministry of Education Southeast University Nanjing China

Vehicular Ad hoc networks (VANET) consists of several vehicular nodes and uses 802.11p protocol for communication. Because of its unique characteristics, such as fast speed, serious Doppler effect, large node number etc, VANET is vulnerable to be affected by a variety of security threats. In this paper, we firstly introduce the system architecture, applications and categories of attacks in VANET. Then we summarize several types of anonymous authentication techniques which aim at protecting the privacy of vehicular nodes, then discuss and compare the typical anonymous authentication schemes of each type. Finally, we present the problems which should be considered in the next step of research.

关键词： Vehicles Authentication Privacy Roads Protocols Ad hoc networks

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Traffic classification based on port connection pattern

Traffic classification based on port connection pattern

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International Conference on computer Science and Service System (CSSS)

作者： Guang Cheng Song Wang School of Computer Science & Engineering Key Laboratory of Computer Network and Information Integration Ministry of Education Key Laboratory of Computer Network Technology of Jiangsu South-East University Nanjing China

ISBN: (纸本)9781424497621

关键词： Electronic mail IP networks Joining processes Classification algorithms Web servers

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A two-stage composite heuristic for dual cycling quay crane scheduling problem

A two-stage composite heuristic for dual cycling quay crane ...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Dandan Wang Xiaoping Li Qian Wang School of Computer Science & Engineering Key Laboratory of Computer Network and Information Integration Ministry of Education Southeast University Nanjing China

In this paper, hatch constrained quay crane scheduling problem is considered to minimize makespan with dual cycling, which can improve efficiency of operations and utilization of quay cranes. By analyzing precedence relationships intra- and inter- hatches, the problem is decomposed into two embedded sub-problems, each of which can be formulated as a 2-machine flow shop scheduling problem. A composite heuristic is introduced for stacks scheduling in a hatch by integrating the Johnson rule with a developed gap-shifting strategy. A better model is constructed for inter-hatches than existing ones, in which overlapped processing time is shorten and effectiveness can be improved by a reconstructive Johnson rule. Experimental results show that the proposed composite algorithm outperforms the existing hybrid heuristic.

关键词： Cranes Loading Containers Schedules Heuristic algorithms Proposals Optimized production technology

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