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2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)最新文献

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Active measurements by the two-dimensional path-based IP performance method 主动测量基于二维路径的IP性能方法
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953653
T. Nakashima
{"title":"Active measurements by the two-dimensional path-based IP performance method","authors":"T. Nakashima","doi":"10.1109/PACRIM.2001.953653","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953653","url":null,"abstract":"Packet loss distribution on Internet nodes depends on the node performance and the bandwidth of the incoming and outgoing link. Each node knows the performance of the IP forwarding processing and bandwidth of the link, but the application can only detect congestion by packet loss. We propose a two-dimensional (path and time dimensions) IP performance evaluation method. We propose new metrics, such as node dependency, relation degree, time dependency and time lag dependency. By experiments, we can get the results showing new node characteristics as follows: (1) the node dependency of path direction is greater than anti-path direction; (2) these pre-dependency nodes are classified leakage type and suppression type; (3) node relation degree is a higher value after the first increasing point of minimum delay; (4) leakage type nodes have big burst degree; (5) the time lag relation degrees are approximately quarter of the node relation degrees; (6) the periodical delays appear in FPTT (forwarding path trip time).","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122271775","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
Mobile IP/sup 2/ 移动IP/sup 2/
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953640
D.J.Y. Lee, W.C.-Y. Lee
{"title":"Mobile IP/sup 2/","authors":"D.J.Y. Lee, W.C.-Y. Lee","doi":"10.1109/PACRIM.2001.953640","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953640","url":null,"abstract":"Internet traffic is growing in an exponential rate and more and more people's lives are tightly coupled to the Internet. The ability to keep connected with the Internet while on the move is highly desired in an increasingly mobile environment. We present a means of ubiquitous network access for consumers in both wired and wireless environments. We introduce the concept of multiple-interface/multiple-connection to support high-speed handoff and seamless roaming between different networks (wired and wireless). This is implemented by improving the current Mobile IP concept, extending the existing IP (specifically CMIP and ARP) functions and enhancing current PC device drivers and software. The mobility that is supported by this proposal is based on layer 3 functionality under the OSI protocol layer definition (physical layer and link layer are assumed to be supported already).","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126146576","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
Quality of service support of distributed interactive virtual environment applications in IP networks IP网络中分布式交互虚拟环境应用的服务质量支持
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953556
Hong-Fang Yu, Quanyou Zhou, D. Makrakis, N. Georganas, E. Petriu
{"title":"Quality of service support of distributed interactive virtual environment applications in IP networks","authors":"Hong-Fang Yu, Quanyou Zhou, D. Makrakis, N. Georganas, E. Petriu","doi":"10.1109/PACRIM.2001.953556","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953556","url":null,"abstract":"This paper reports on the performance of Distributed Interactive Virtual Environment (DIVE) applications, deployed through Internet. Our goal is to understand the behaviour of a DIVE application, its interaction with competing traffic streams, as well as its network resource requirements for a satisfactory performance. As DIVE is becoming the building block of new applications and services, impacting several existing or new and growing sectors of our economy (email electronic commerce, tele-training, transportation), it is important that we understand the resource requirements of these applications, as well as the \"stress\" they will impose on the network.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127147028","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
Agent-based personalized services in a mobile computing environment 移动计算环境中基于代理的个性化服务
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953735
H. Harroud, M. Ahmed, A. Karmouch, T. Gray, R. Impey
{"title":"Agent-based personalized services in a mobile computing environment","authors":"H. Harroud, M. Ahmed, A. Karmouch, T. Gray, R. Impey","doi":"10.1109/PACRIM.2001.953735","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953735","url":null,"abstract":"This paper proposes an agent-based service provisioning system for mobile users. It features a set of cooperative agents distributed over different sites that work together to provide personalized services for users within a mobile computing environment. For instance, when a user moves outside of his office, he would like to have a similar office environment while he is at home, in a meeting at another company, on a business trip or at a temporary location such as a hotel. Agents representing the end-users and the system agents may engage into a negotiation process to help the user access personalized services at particular site in accordance with the user's home policies and his current location policies. Adaptive Service Presentation agent is used to adapt the service presentation to the capabilities of the user's device (e.g. Workstation, Laptop, Phone, PDA). This work is part of the Mobile Agent Alliance project involving University of Ottawa, National Research Council and Mitel Corporation in Canada.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128868987","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
Filter design targets with reduced jitter effect 滤波器设计目标与减少抖动的影响
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953550
S. Mneina, G. Martens
{"title":"Filter design targets with reduced jitter effect","authors":"S. Mneina, G. Martens","doi":"10.1109/PACRIM.2001.953550","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953550","url":null,"abstract":"Filter design for data transmission involves the search for functions with certain properties, which when used as targets, the resulting filter will be appropriate for a predetermined task, such as, reduction of jitter effect. A widely used class of baseband pulses that satisfy the Nyquist criterion for eliminating intersymbol interference (ISI) in narrowband communications are pulses with zero crossings at the sampling instants corresponding to the standard raised cosine spectrum. In this paper an alternative pulse is proposed, one with zero derivatives at the sampling instants and a corresponding triangular spectrum. Filters designed with this triangular spectrum are found to have better performance in the presence of jitter than filters designed with the standard raised cosine spectrum as the target function.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127866358","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: 3
Queue management of RIO to achieve high throughput and low delay RIO的队列管理，实现高吞吐量和低延迟
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953709
Y. Hori, T. Ikenaga, Y. Oie
{"title":"Queue management of RIO to achieve high throughput and low delay","authors":"Y. Hori, T. Ikenaga, Y. Oie","doi":"10.1109/PACRIM.2001.953709","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953709","url":null,"abstract":"We focus on the RIO queueing mechanism in statistical bandwidth allocation service, which uses AF-PHB. We study the parameterization of RIO to achieve both high throughput and low delay. We are able to parameterize RIO for that purpose in terms of both min-th and maxp used in dropping \"Out\" packets. Furthermore, we also examine the parameterization regarding EWMA (exponential weighted moving average), ie, weight factor w/sub qout/, and show that dropping \"Out\" packets should depend upon the queue length without much delay, unlike RED. From our simulation results, we can see that our parameterization provides high throughput performance and also limits the queue length in a narrow range very well.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117220959","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: 6
Highway lane boundary determination for autonomous navigation 自主导航公路车道边界确定
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953728
Salah G. Foda, Amer K. Dawoud
{"title":"Highway lane boundary determination for autonomous navigation","authors":"Salah G. Foda, Amer K. Dawoud","doi":"10.1109/PACRIM.2001.953728","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953728","url":null,"abstract":"The design and implementation of a vision based multilane-highway lane recognition system is presented. The required result from the system is to recognize the lane through which a test vehicle is driving by determining its left and right lane boundaries. When the proposed lane recognition system was tested it showed a very high percentage of correct results in very difficult situations which suggests that it provides the foundation for a reliable road following system.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128465943","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: 9
Optimal design of multi-channel transmultiplexers with stopband energy constraints 带阻带能量约束的多通道复用器优化设计
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953694
Yang Shi, Tongwen Chen
{"title":"Optimal design of multi-channel transmultiplexers with stopband energy constraints","authors":"Yang Shi, Tongwen Chen","doi":"10.1109/PACRIM.2001.953694","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953694","url":null,"abstract":"Optimal design incorporating filters' stopband energy constraints for multi-channel, uniform and non-uniform transmultiplexers is studied. Central to the development is a reformulation of the design problem as a quadratically constrained quadratic programming problem where the stopband energy requirements are met by imposing a systems of quadratic constraints while the composite distortion measure proposed for reconstruction is minimized. An iterative optimal design procedure for FIR, synthesis filters and analysis filters is developed and applied to two design examples, one for the uniform case and the other for the nonuniform case.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126682516","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
Convergence of forgetting factor least square algorithms 遗忘因子最小二乘算法的收敛性
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953662
F. Ding, Tao Ding
{"title":"Convergence of forgetting factor least square algorithms","authors":"F. Ding, Tao Ding","doi":"10.1109/PACRIM.2001.953662","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953662","url":null,"abstract":"Convergence of the forgetting factor least square (FFLS) algorithm is analyzed by using stochastic process theory; and the upper bound of the parameter estimation error is derived. For time-varying stochastic systems, the FFLS algorithm is capable of tracking the time-varying parameters and the parameter estimation error is bounded. The upper bound of the parameter estimation error can be minimized by choosing the forgetting factor properly. Simulated results obtained support the theoretical findings.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126761264","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: 5
The study of chaotic turbo encoder 混沌涡轮编码器的研究
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953564
Jianbo Liu, Decun Dong, Wentao Song, Shujing Zhang, Qigang Zhou
{"title":"The study of chaotic turbo encoder","authors":"Jianbo Liu, Decun Dong, Wentao Song, Shujing Zhang, Qigang Zhou","doi":"10.1109/PACRIM.2001.953564","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953564","url":null,"abstract":"A new scheme to implement chaotic turbo codes is proposed. The chaotic RSC encoder is constructed by embedding the chaotic code generator into an RSC encoder. The code rate can be flexibly changed according to the demand. Due to the bandwidth expansion, the performance can be improved, so chaotic turbo codes are suited mainly for spread spectrum applications.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116917713","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
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