2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability最新文献

Computational quality model for wideband voice-over-IP communications 宽带ip话音通信计算质量模型

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137353

Eugene S. Myakotnykh, Richard A. Thompson

引用次数: 0

An exact optimization tool for market-oriented grid middleware 面向市场的网格中间件的精确优化工具

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137355

R. Aoun, M. Gagnaire

引用次数: 3

Measurement based QoS comparison of cellular communication networks 基于测量的蜂窝通信网络QoS比较

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137360

I. Kostanic, N. Mijatovic, Stephen D. Vest

引用次数: 19

The notion of cost and quality in packet switched networks: An abstract approach 分组交换网络中成本和质量的概念:一种抽象方法

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137354

Ling Wang, P. Verma

引用次数: 2

Intentional window flow control for proxy-based TCP in ad hoc networks 自组织网络中基于代理的TCP的有意窗口流控制

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137357

Yuta Yamamoto, M. Yamamoto

{"title":"Intentional window flow control for proxy-based TCP in ad hoc networks","authors":"Yuta Yamamoto, M. Yamamoto","doi":"10.1109/CQR.2009.5137357","DOIUrl":"https://doi.org/10.1109/CQR.2009.5137357","url":null,"abstract":"In ad hoc wireless networks, end-to-end TCP is well-known that it can obtain very low throughput with increase of the number of hops. One promising way to resolve this technical problem of TCP throughput degradation is proxy-based TCP. In proxy-based TCP, an end-to-end TCP session is divided by (an) intermediate proxy host(s), which leads to reduction of hop-count of each divided session and improvement of TCP throughput. However, we show that proxy-based TCP surprisingly does not bring performance improvement and obtain lower throughput than conventional end-to-end TCP in a realistic situation of limited buffer space in proxy host(s). The reason for this degradation is interruption of segment transmission caused by wireless channel capture around the proxy host. In this paper, for resolving this problem, we propose intentional window flow control which prevents wireless channel capture around the proxy host. In our proposed intentional window flow control method, the proxy host and the destination host return advertised window size which is intentionally set to small value almost independently from its vacant buffer space. Performance evaluation results show that our proposed intentional flow control with small advertised window size prevents wireless channel capture around the proxy host and significantly improves proxy-based TCP performance.","PeriodicalId":186033,"journal":{"name":"2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability","volume":"27 35","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114047383","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

Predicting the quality of voice over IP networks 预测IP网络的语音质量

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137358

Sanghyun Chi, B. Womack

引用次数: 2

Proof of optimal algorithm for maximum-bandwidth ALM tree construction 最大带宽ALM树构造的最优算法证明

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137359

T. Kikkawa, T. Miyata, K. Yamaoka

引用次数: 3

Quantifying software reliability and readiness 量化软件的可靠性和准备情况

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137352

A. Asthana, J. Olivieri

引用次数: 44

Accuracy improvement of multi-stage change-point detection scheme by weighting alerts based on false-positive rate 基于假阳性率的加权报警提高多级变点检测方案的准确性

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2009-05-12 DOI: 10.1109/CQR.2009.5137356

Y. Fukushima, T. Murase, R. Fujimaki, S. Hirose, T. Yokohira

{"title":"Accuracy improvement of multi-stage change-point detection scheme by weighting alerts based on false-positive rate","authors":"Y. Fukushima, T. Murase, R. Fujimaki, S. Hirose, T. Yokohira","doi":"10.1109/CQR.2009.5137356","DOIUrl":"https://doi.org/10.1109/CQR.2009.5137356","url":null,"abstract":"One promising approach for large-scale simultaneous events (e.g., DDoS attacks and worm epidemics) is to use a multi-stage change-point detection scheme. The scheme adopts two-stage detection. In the first stage, local detectors (LDs), which are deployed on each monitored subnet, detects a change point in a monitored metric such as outgoing traffic rate. If an LD detects a change-point, it sends an alert to global detector (GD). In the second stage, GD checks whether the proportion of LDs that send alerts simultaneously is greater than or equal to a threshold value. If so, it judges that large-scale simultaneous events are occurring. In previous studies for the multi-stage change-point detection scheme, it is assumed that weight of each alert is identical. Under this assumption, false-positive rate of the scheme tends to be high when some LDs sends false-positive alerts frequently. In this paper, we weight alerts based on false-positive rate of each LD in order to decrease false-positive rate of the multi-stage change-point detection scheme. In our scheme, GD infers false-positive rate of each LD and gives lower weight to LDs with higher false-positive rate. Simulation results show that our proposed scheme can achieve lower false-positive rate than the scheme without alert weighting under the constraint that detection rate must be 1.0.","PeriodicalId":186033,"journal":{"name":"2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132307099","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

Improvement of RTT-fairness in Hybrid TCP congestion control 混合TCP拥塞控制中rtt公平性的改进

2009 IEEE International Workshop Technical Committee on Communications Quality and Reliability Pub Date : 2008-09-25 DOI: 10.1109/CQR.2009.5137351

Kazumine Ogura, Tomoki Fujikawa, Su Zhou, J. Katto

引用次数: 3