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2005 1st IEEE and IFIP International Conference in Central Asia on Internet最新文献

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Towards the improvement of performance anomaly prediction 对性能异常预测的改进
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-12-01 DOI: 10.1109/CANET.2005.1598205
M. Zhanikeev, Yoshiaki Tanaka
{"title":"Towards the improvement of performance anomaly prediction","authors":"M. Zhanikeev, Yoshiaki Tanaka","doi":"10.1109/CANET.2005.1598205","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598205","url":null,"abstract":"Growing demand for pro-active abilities in network management requires performance monitoring agents not only to be able to monitor the anomalies, but also to predict future occurrences. Recent research in this area would usually apply a neural network algorithm on raw SNMP or NetFlow data to obtain the knowledge about the patterns in performance data. The results are not always satisfactory due to highly unpredictable nature of cross-traffic in the network. This paper attempts to improve the prediction quality by using data obtained from end-to-end probing. The results prove higher resilience to cross-traffic interference and better pattern recognition.","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130549890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the efficiency of the MI-MAC protocol for multimedia traffic integrated access over wireless networks 无线网络多媒体业务综合接入中MI-MAC协议的效率研究
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598201
P. Koutsakis, H. Papadakis, M. Paterakis, S. Psychis
{"title":"On the efficiency of the MI-MAC protocol for multimedia traffic integrated access over wireless networks","authors":"P. Koutsakis, H. Papadakis, M. Paterakis, S. Psychis","doi":"10.1109/CANET.2005.1598201","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598201","url":null,"abstract":"In this work, we study the efficiency of a new reservation medium access control protocol for wireless communications, named Multimedia Integration Multiple Access Control (MI-MAC), by comparing it with another well-known protocol for multimedia integration over wireless networks (DPRMA). Our scheme, one of the first in the literature that considers the integration of streams from latest technology video encoders with other types of packet traffic over wireless networks, is shown to outperform DPRMA* (a very slightly modified version of DPRMA, used in order to be able to make comparisons between the two protocols) in terms of aggregate channel throughput and mean Web data transmission delays.","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123142965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An integrated multilayer traffic engineering scheme in the new generation GMPLS based optical Internet 基于GMPLS的新一代光互联网综合多层流量工程方案
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598181
W. Colitti, K. Steenhaut, A. Nowé
{"title":"An integrated multilayer traffic engineering scheme in the new generation GMPLS based optical Internet","authors":"W. Colitti, K. Steenhaut, A. Nowé","doi":"10.1109/CANET.2005.1598181","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598181","url":null,"abstract":"This paper proposes a new scheme for multi-layer traffic engineering (MTE) in generalized multi-protocol label switching (GMPLS) IP over optical networks. The scheme routes IP traffic guaranteeing sufficient bandwidth, high transmission quality and low resource usage. The routing decision is made via a cost metric which considers lightpath's power penalty and propagation delay and number of available wavelengths and transmitters. The requests are accommodated on mixed (lambda and packet) GMPLS label switched paths (LSPs) installed by nested RSVP-TE sessions. Extensive simulations demonstrate the good quality of the scheme's performance in terms of blocking probability and resource usage.","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124978614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Assessment of VoIP quality over access networks 接入网络的VoIP质量评估
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598195
Muhammad Amir Mehmood, T.M. Jadoon, N. M. Sheikh
{"title":"Assessment of VoIP quality over access networks","authors":"Muhammad Amir Mehmood, T.M. Jadoon, N. M. Sheikh","doi":"10.1109/CANET.2005.1598195","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598195","url":null,"abstract":"This paper assesses VoIP quality over access networks in Pakistan using a delay jitter measurement methodology for evaluating the perceptual quality of voice calls using the ITU-T G.107 speech quality E-model. Passive measurements for voice calls in the presence of background Internet data traffic for G.723.1 and G.729a codecs are carried out using a non-intrusive parametric model. The R-factor and resultant Mean Opinion Scores (MOS) were calculated at different link loads and congestion hot spots were identified. The study highlights the inadequacy of access networks for handling VoIP traffic at current in Pakistan and suggests alleviating congestion by increasing capacity in access networks","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114956637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
An intrusion detection system based on system call 基于系统调用的入侵检测系统
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598184
Yue Shen, Fei Yu, Ling-fen Zhang, Ji-yao An, Miaoliang Zhu
{"title":"An intrusion detection system based on system call","authors":"Yue Shen, Fei Yu, Ling-fen Zhang, Ji-yao An, Miaoliang Zhu","doi":"10.1109/CANET.2005.1598184","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598184","url":null,"abstract":"Intrusion detection is an efficient way to protect information system. This paper puts forward a new method of anomalous intrusion detection based on system call. It uses system calls regarded as input, and creates a FSA (finite-state automation machine) for the functions in the program. Then the FSA is used to detect the attack. Moreover, it can find the place of the vulnerability which exists in the program. This can help to alter the source program. Results are shown that this method is effective for some intrusion events.","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116616969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Half-pixel accuracy block matching motion estimation algorithms for low bitrate video communications 低比特率视频通信的半像素精度块匹配运动估计算法
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598214
H. Mahdavi-Nasab, S. Kasaei
{"title":"Half-pixel accuracy block matching motion estimation algorithms for low bitrate video communications","authors":"H. Mahdavi-Nasab, S. Kasaei","doi":"10.1109/CANET.2005.1598214","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598214","url":null,"abstract":"Motion estimation at fractional-pixel accuracy results in higher quality video sequences. However, the higher quality is achieved by more computations and increased required motion field bitrates. In this paper, new half-pixel accuracy block matching-based motion estimation algorithms are proposed to improve the rate-distortion characteristics of low-bitrate video communications. The proposed methods especially tend to decrease the required video bandwidth, with no degradation in quality of reconstructed image sequences. The key idea is to put a deeper focus on the origin (zero motion) based on the center-bias characteristics of low bitrate video motion fields. The experimental results show the efficiency of the proposed schemes.","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130385847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
A new approach for mobile agent fault-tolerance and reliability using distributed systems 基于分布式系统的移动代理容错与可靠性新方法
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598207
K. Mohammadi, H. Hamidi
{"title":"A new approach for mobile agent fault-tolerance and reliability using distributed systems","authors":"K. Mohammadi, H. Hamidi","doi":"10.1109/CANET.2005.1598207","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598207","url":null,"abstract":"Mobile agents have attracted considerable interest in recent years. In the context of mobile agents, fault tolerance is crucial to enable the integration of mobile agent technology into today's business applications. To further develop mobile agent technology, reliability mechanisms such as fault tolerance and transaction support are required. For this purpose, we first identify two basic requirements for fault-tolerant mobile agent execution: (1) non-blocking (i.e., a single failure does not prevent progress of the mobile agent execution); and (2) exactly-once (i.e., multiple executions of the agent are prevented). To achieve fault tolerance for the agent system, especially for the agent transfer to a new host, we use distributed transaction processing. This paper proposes a novel approach to fault-tolerant mobile agent execution, which is based on modeling agent execution as a sequence of agreement problems. Each agreement problem is one instance of the well-understood consensus problem. Our solution does not require a perfect failure detection mechanism, while preventing blocking and ensuring that the agent is executed exactly once","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129128573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Evaluation of fault-tolerant mobile agents in distributed systems 分布式系统中容错移动代理的评估
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.4018/jiit.2009010103
H. Hamidi, A. Vafaei
{"title":"Evaluation of fault-tolerant mobile agents in distributed systems","authors":"H. Hamidi, A. Vafaei","doi":"10.4018/jiit.2009010103","DOIUrl":"https://doi.org/10.4018/jiit.2009010103","url":null,"abstract":"The secure execution of a mobile agent is a very important design issue in building a mobile agent system and many fault-tolerant schemes have been proposed so far. Mobile agents are no longer a theoretical issue since different architectures for their realization have been proposed .In the context of e-commerce, execution atomicity is an important property for mobile agents. A mobile agent executes atomically, if either all its operations succeed, or none at all. This requires to solve an instance of the atomic commitment problem. However, it is important that failures (e.g., of machines or agents) do not lead to blocking of transactional mobile agents, i.e., agents that execute as a transaction. In this paper, we give a novel specification of non-blocking atomic commitment in the context of mobile agent execution. Fault tolerance for mobile agent systems is an unsolved topic, to which more importance should be attached. Besides the security problems by intended attacks it is very important to realize that an agent can simply get lost by errors of the network or the hosts. We then show how transactional mobile agent execution can be built on top of earlier work on fault-tolerant mobile agent execution and give preliminary performance results","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114761900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 31
Design and implementation of a network-link emulator 网络链路仿真器的设计与实现
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598212
Yi Liu, Peng Zhang, Ling Lv, D. Qian
{"title":"Design and implementation of a network-link emulator","authors":"Yi Liu, Peng Zhang, Ling Lv, D. Qian","doi":"10.1109/CANET.2005.1598212","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598212","url":null,"abstract":"Network-link emulator is one of the key software utilities for network emulation. After a discussion of principles to emulating a specified network-link, this paper gives control models for bandwidth, transmission delay and packet loss rate emulation. After that, three implementing schemes for the emulator are presented and discussed, and the scheme based on Netfilter is chosen finally. Based on the scheme, the emulator is implemented, and its organization is presented. Finally, throughputs and accuracy of the emulator are tested and results are discussed.","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133014454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Analysis of CPM and FWM phenomena for various signaling formats in 16 channel DWDM 16信道DWDM中各种信令格式的CPM和FWM现象分析
2005 1st IEEE and IFIP International Conference in Central Asia on Internet Pub Date : 2005-09-26 DOI: 10.1109/CANET.2005.1598180
S.W. Bang, D. G. Daut
{"title":"Analysis of CPM and FWM phenomena for various signaling formats in 16 channel DWDM","authors":"S.W. Bang, D. G. Daut","doi":"10.1109/CANET.2005.1598180","DOIUrl":"https://doi.org/10.1109/CANET.2005.1598180","url":null,"abstract":"CPM and FWM are significant nonlinear optical effects in DWDM systems. CPM leads to spectral broadening which may cause severe pulse distortion. While FWM is a nonlinear interaction that can occur between several channels of different wavelengths. FWM may result in significant crosstalk among the channels in DWDM systems. Understanding fiber nonlinearities is crucial in order to optimize system performance. The effects of CPM and FWM in conjunction with various signaling formats in 16 channel systems are evaluated.","PeriodicalId":308520,"journal":{"name":"2005 1st IEEE and IFIP International Conference in Central Asia on Internet","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115333946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
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