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The Eighth World Conference on Integrated Design & Process Technology

作者： S.Watanabe Sojo University Department of Electronics & Computer Network Engineering Kumamoto Japan

The social structure changed previously from an Agrarian Society to an Industrial Society. Theworld is forming an Information Society and seeking more prosperity now. New ubiquitouscomputing networks

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Architecture of multi channel multi database voting system

IFIP Advances in Information and Communication Technology

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IFIP Advances in Information and Communication Technology 2005年 189卷 281-295页

作者： Vasudhara Reddy, A. Raghavan, S.V. Network Systems Laboratory Department of Computer Science and Engineering Indian Institute of Technology Madras India

ISBN: (纸本)9780387287539

Voting technology has seen various changes over the time, starting from traditional ballot voting system to the latest e-voting system. But technology couldn't affect the popularity of ballot voting system though it doesn't provide desirable blend of accessibility and efficiency. We believe that an architecture that combines the efficiency of current day technology and the ease of ballot voting system will revolutionize voting. We propose a novel architecture for voting system that uses multiple channels (ATM, Internet, cellular phone, telephone and ballot) and multiple databases to show that it is ideal in achieving accessibility, efficiency, feasibility and flexibility. We show through simulations that the proposed multi channel voting system is suitable for several countries. We compare the cost of this voting system with the traditional one in different scenarios with the help of a new metric.

关键词： Efficiency

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End-to-end quality of service provisioning for nternet access via third generation wireless networks

End-to-end quality of service provisioning for nternet acces...

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作者： Jiang, Zhifeng Leung, Victor C. M. Department of Electrical and Computer Engineering University of British Columbia Canada Communication Technology Labs China Network Communication Group Beijing China Laboratory Beijing China Telus Mobility Research Department Department of Graduate Affairs IEEE

Large bandwidth, guaranteed quality of service (QoS), and ease of deployment, coupled with great advancements in semiconductor technologies for wireless devices make third generation (3G) wireless networks a very attractive solution for mobile users to access the Internet. 3G wireless networks will support interactive multimedia services, so QoS support is crucial. In this paper, we briefly survey 3G network architecture and specifications for supporting QoS, using UMTS as a specific example. We also identify the problems of end-to-end QoS provisioning in the context of UMTS interworking with other public networks that form the Internet. To address these problems, we present potential solutions based on existing Internet QoS provisioning schemes.

关键词： Internet

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Machine learning approach to realtime intrusion detection system

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18th Australian Joint Conference on Artificial Intelligence, AI 2005: Advances in Artificial Intelligence

作者： Kim, Byung-Joo Kim, Il Kon Youngsan University Dept. of Network and Information Engineering 150 Junam-ri Yangsan-si Kyoungnam 626-847 Korea Republic of Kyungpook National University Department of Computer Science Korea Republic of

ISBN: (纸本)3540304622

computer security has become a critical issue with the rapid development of business and other transaction systems over the internet. Recently applying artificial intelligence, machine learning and data mining techniques to intrusion detection system are increasing. But most of researches are focused on improving the classification performance of classifier. Selecting important features from input data lead to a simplification of the problem, faster and more accurate detection rates. Thus selecting important features is an important issue in intrusion detection. Another issue in intrusion detection is that most of the intrusion detection systems are performed by off-line and it is not proper method for realtime intrusion detection system. In this paper, we develop the realtime intrusion detection system which combining on-line feature extraction method with Least Squares Support Vector Machine classifier. Applying proposed system to KDD CUP 99 data, experimental results show that it have remarkable feature feature extraction and classification performance compared to existing off-line intrusion detection system. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Learning systems

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Guest editorial wireless overlay networks based on mobile IPv6

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IEEE Journal on Selected Areas in Communications 2005年第11期23卷 2089-2090页

作者： Chao, Han-Chieh Huang, Nen-Fu Kuo, Sy-Yen Perkins, Charles E. Stuttgen, Heinrich Bux, W. National Ilan University Department of Electronic Engineering I-Lan 260 Taiwan National Tsing Hua University Department of Computer Science Hsin-Chu 300 Taiwan National Taiwan University Department of Electrical Engineering Taipei 106 Taiwan Nokia Research Center Communication Systems Laboratory Mountain View CA 94043 United States NEC Europe Ltd. Network Laboratories Heidelberg D 69115 Heidelberg Germany Department of Electronic Engineering Taiwan Library and Information Technology Office National Ilan University I-Lan Taiwan IPv6 Steering Committee Taiwan Taiwan IPv6 Forum Taiwan Department of Computer Science National Tsing Hua University Taiwan IPv6 Working Group NICI Ipv6 Steering Committee IPv6 Forum Taiwan Department of Electrical Engineering National Taiwan University Taiwan Computer Science and Engineering Department Chinese University of Hong Kong Hong Kong IEEE Computer Society Networking Technology Laboratory Nokia Research Center Mountain View CA United States IEEE Vehicular Technology Conference Networking Track NEC Europe Ltd. Germany NEC's Network Laboratories Heidelberg Germany Board of Governors IEEE Communications Society Japan Department of ComSoc's Switching Routing Technical Committee

No abstract available

关键词： Internet Wireless networks Mobile computing computer networks Land mobile radio cellular systems Access protocols GSM Pervasive computing Mobile communication computer architecture

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A new fairness model for resilient packet rings

A new fairness model for resilient packet rings

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IEEE International Conference on Communications (ICC)

作者： S. Khorsandi A. Shokrani L. Lambadaris Department of Computer Engineering Amirkabir University of Technology슠 Tehran Iran Broadband Network Laboratory Department of Systems and Computer Engineering Carleton University Ottawa Canada

One of the main requirements in packet ring networks is to provide fairness in bandwidth allocation among the ring nodes. Each node must receive a fair share of the ring bandwidth and should not starve for an extended period of time. Due to the particular architecture of the packet rings, fairness models such as max-min fairness and proportional fairness are not suitable for these networks. Ring ingress aggregated with spatial reuse (RIAS) is a proposed model for packet rings. However, it lacks generality and intuition. In this paper, a new fairness model for ring networks called ring ingress aggregated max-min (RIAMM) fairness, is proposed. This model is invariant of the source behavior. We have analyzed conditions as well as feasibility criteria for this model. Considering resilient packet ring (RPR) as a particular case, we have studied the effect of source behaviors and fairness algorithms. Three main source behaviors, namely, MF (maximally feasible), FEP (feasible equal partitioning), and SC (single choke) are studied. We show that the FEP source behavior can result in a throughput loss of up to 17%, when traffic disparity exists. It is also shown that fairness algorithms with a slow convergence can result in permanent unfairness during a congestion period.

关键词： Bandwidth Throughput computer networks Channel allocation Partitioning algorithms Broadband communication Laboratories Systems engineering and theory Inductors Convergence

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Aaptive quality control for real-time MPEG-4 video communications

Aaptive quality control for real-time MPEG-4 video communica...

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International Symposium on Communications and Information Technologies (ISCIT)

作者： S. Chuaywong S. Kamolphiwong T. Kamolphiwong Centre for Network Research Department of Computer Engineering Faculty of Engineering Prince of Songkla University Hat Yai Songkhla Thailand

The real-time video communications over the Internet can be affected by packet loss problem because the current Internet does not guarantee quality of service (QoS). Video applications are necessary to apply some mechanisms to minimize the effect of packet loss. In this paper, we propose a new algorithm in adaptive quality control for real-time MPEG-4 video communications. The proposed algorithm changes the value of an encoder parameter, key frame interval, based on network congestion in order to control the quality of the received video not to be unacceptable. And the experimental result shows that the proposed algorithm can adapt the value of key frame interval appropriately and it can control the quality of the received video in both spatial and temporal quality.

关键词： Programmable control Adaptive control Quality control MPEG 4 Standard PSNR Bit rate Communication system control Quality of service Bandwidth Internet

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ASIC design of fast IP-lookup for next generation IP router

ASIC design of fast IP-lookup for next generation IP router

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Yuan-Sun Chu Po-Feng Lin Jia-Huang Lin Hui-Kai Su Ming-Jen Chen Computer Network Laboratory Department of Electrical Engineering National Chung Cheng University Taiwan

ISBN: (纸本)0780388348

One of the prime designs for the next generation IP routers is the IP-lookup mechanism. The IP lookup has become a major performance bottleneck for the routers. In this paper, we propose a complete hardware architecture which includes searching, updating, inserting, and deleting functions. A simple hash hardware design is used to reduce the lookup time, and a CAM is also used to solve the collision problems effectively. The ASIC includes search unit, memory controller, 1M-byte cache and 3.18 Kbytes CAM for a 32000 entries routing table. The searching, updating and deleting functions only need 1 cycle and it is 96.88% to chance to hit the correct next hop in the first cycle.

关键词： Application specific integrated circuits Routing Hardware computer aided manufacturing CADCAM Internet Protocols computer networks Laboratories Next generation networking

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Virtual queuing: an efficient algorithm for bandwidth management in resilient packet rings

Virtual queuing: an efficient algorithm for bandwidth manage...

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IEEE International Conference on Communications (ICC)

作者： A. Shokrani S. Khorsandi I. Lambadaris L. Khan Broadband Network Laboratory Department of Systems and Computer Engineering Carleton University Ottawa Canada

Resilient packet ring (RPR) is being devised as part of IEEE 802.17 standard, where fairness in bandwidth allocation among ring nodes, efficiency in resource utilization, and a low computational complexity are the main requirements. Although recent efforts have improved the performance of the RPR fairness algorithms to have acceptable steady-state behavior, we demonstrate that current algorithms suffer from extreme unfairness and throughput loss in some dynamic traffic scenarios. In this paper, we address the bandwidth management in RPR. First, we propose a general fairness model for packet rings. Then, a new algorithm for bandwidth management in RPR called virtual queuing (VQ) is introduced. We study the fairness properties of VQ algorithm both analytically and with simulation results. Compared to the RPR standard fairness algorithms that suffer from a throughput loss of up to 28% in some cases, the throughput loss with VQ is less than 2%. Comparing to another algorithm, called distributed virtual-time scheduling in rings (DVSR), VQ has a lower computational complexity and a better performance in a dynamic traffic environment. We show that the average throttled rate of the head node in a congestion span can be up to 80% for DVSR With VQ, it is less than 4% in all cases.

关键词： Bandwidth Throughput Computational complexity Traffic control Channel allocation Resource management Performance loss Steady-state Algorithm design and analysis Computational modeling

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A new micro-mobility scheme using core node in all-IP-based wireless systems

A new micro-mobility scheme using core node in all-IP-based ...

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IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)

作者： SungHo Kim Sunshin An Computer Network Laboratory Department of Electronics Engineering Korea University Seoul South Korea

This paper proposes a new micro-mobility scheme using core node. This node manages routing information for a mobile host and not to generate unnecessary messages at each base station and wired node. This scheme can prevent control traffics from all networks and reduce packet loss and handover latency because these messages can be sent to only the core node. We have conducted distribution of traffic as messages which created at old BS and then disappeared at core node for maintenance of routing table. We have evaluated the performance of our micro-mobility scheme through a series of simulations using the network simulator 2 (ns-2)

关键词： Routing Base stations Communication system traffic control Delay Traffic control Protocols Wireless networks Telecommunication network topology Intelligent networks Information management

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