Proceedings. Ninth IEEE International Conference on Networks, ICON 2001.最新文献_第8页

Statistical modeling of MPEG coded video MPEG编码视频的统计建模

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962314

Preslav Markov, H. Mehrpour

{"title":"Statistical modeling of MPEG coded video","authors":"Preslav Markov, H. Mehrpour","doi":"10.1109/ICON.2001.962314","DOIUrl":"https://doi.org/10.1109/ICON.2001.962314","url":null,"abstract":"The major driving force behind the emerging of broadband integrated networks is traffic from video sources. Since this traffic will be a substantial portion of the overall traffic carried by the integrated networks, it is extremely important that adequate source models are found. The networks' dimensioning depends on the statistical properties of traffic sources. For video sources the Moving Picture Experts Group (MPEG) compression scheme was proposed several years ago and it has become the de facto standard for video compression since then. However, even with the huge reduction of bits that MPEG compression provides, it does not smooth the video traffic. Indeed the MPEG compression algorithm guarantees that the MPEG stream will be bursty. The aim of the work outlined was finding a suitable model for the MPEG coded video traffic. The paper concentrates on a variety of models and their capabilities to model adequately the statistical properties of MPEG video. In particular, the transform-expand-sample (TES), the autoregressive (AR), the autoregressive moving average (ARIMA) and the first order statistics histogram models were investigated in terms of both accuracy and complexity. A short discussion regarding the tradeoff between the accuracy and the complexity of these models is also provided.","PeriodicalId":178842,"journal":{"name":"Proceedings. Ninth IEEE International Conference on Networks, ICON 2001.","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126581107","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: 4

Current directions in active programmable network 有源可编程网络的当前发展方向

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962347

W. Lau, S. Jha, Mahbub Hassan

引用次数: 3

A multi-base station multi-carrier PRMA MAC protocol 一种多基站多载波PRMA MAC协议

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962349

Mingyuan Li, Yongyi Mao, Xiaoyan Zhang, Juan Guo

引用次数: 0

Performance analysis of platform independent image transcoders 独立于平台的图像转码器性能分析

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962326

Z. Zhou, A. Seneviratne

{"title":"Performance analysis of platform independent image transcoders","authors":"Z. Zhou, A. Seneviratne","doi":"10.1109/ICON.2001.962326","DOIUrl":"https://doi.org/10.1109/ICON.2001.962326","url":null,"abstract":"Today many \"Internet ready\" devices available on the market are Web-enabled. These devices often have a low bandwidth, high latency access to the Internet that causes a bottleneck of data communication. Moreover, a number of client devices have very limited computing power and hardware/software resources to handle some of the content-rich information that a user might want to access from the network. A content transcoder is a possible solution to solve the problem caused by the deficiencies of such devices. To extend the concept further we believe a transportable content transcoder will provide more flexibility than the current static proxy solution. However, the current Internet environment is heterogeneous, and implementing such a transcoder with native programming language is not applicable. To overcome this issue, a transportable transcoder needs to be implemented using platform independence language, such as Java. Inevitably, there will be tradeoffs when using such a language in terms of performance. In this paper, we present our findings on the performance of a Java image transcoder by comparing one written in native code (C). In addition, we investigate means to optimise the performance of our Java transcoder From our results we evaluate the viability of this concept.","PeriodicalId":178842,"journal":{"name":"Proceedings. Ninth IEEE International Conference on Networks, ICON 2001.","volume":"30 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115216839","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

GLOB: generic load balancing GLOB:通用负载均衡

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962319

T. Verwoerd, R. Hunt

引用次数: 2

Mixing UDP and TCP in a Diffserv assured forwarding PHB - a programmable networks scenario 在Diffserv中混合UDP和TCP确保转发PHB -可编程网络场景

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962397

G. Rogers, M. Minhazuddin, R. Liu

引用次数: 2

The group security association for secure multicasting 用于安全组播的组安全关联

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962329

Wonjoo Park, J. Nah, S. Sohn, Daeyoung Kim

引用次数: 1

A hierarchy-based multicast protocol for wireless mobile ad-hoc networks 无线移动自组织网络中基于层次的多播协议

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962348

Tzung-Shi Chen, Yuh-Shyan Chen, Hua-Wen Tsai

引用次数: 3

Joint routing and rate assignment in MPLS based networks 基于MPLS网络的联合路由和速率分配

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962340

W. Tsai, Wulun Dai

{"title":"Joint routing and rate assignment in MPLS based networks","authors":"W. Tsai, Wulun Dai","doi":"10.1109/ICON.2001.962340","DOIUrl":"https://doi.org/10.1109/ICON.2001.962340","url":null,"abstract":"The problem of jointly optimizing rate assignment (admission control) and routing with multiple quality of service (QoS) classes is formulated in this paper. A multiobjective lexicographical approach was used to force the higher priority classes to have proportionally smaller packet loss rates and delay variations and higher admitted rate. The lexicographic approach (called the virtual input method) uses the concept of virtual input rates that are shown to be necessary to obtain categorical differences in QoS between classes. This algorithm is then compared to an ad hoc iterative algorithm (called the iterative method) which optimizes delay and rate assignment on an alternating basis. M/M/1/b queues are used to model switching delays in the MPLS based networks. The average packet loss and switching delay in the network are shown to be closely related and the average packet delay is used in the main objective for the optimization. The joint optimization is equivalent to the optimal routing problem (ORP). Since the ORP with packet loss is non-convex, a reduced problem (R-ORP) is formulated by assuming no packet loss at intermediate switches. Numerical results show that the virtual input method produces excellent results for network wide optimal joint assignment.","PeriodicalId":178842,"journal":{"name":"Proceedings. Ninth IEEE International Conference on Networks, ICON 2001.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130108601","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

A simple method for implementing PIM to ATM based MPLS networks 在基于ATM的MPLS网络中实现PIM的简单方法

Proceedings. Ninth IEEE International Conference on Networks, ICON 2001. Pub Date : 2001-10-10 DOI: 10.1109/ICON.2001.962368

Jaihyung Cho, M. Chung

引用次数: 4