Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003最新文献_第9页

Dynamic capacity management for voice over packet networks 分组网络语音的动态容量管理

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214261

N. Akar, C. Sahin

{"title":"Dynamic capacity management for voice over packet networks","authors":"N. Akar, C. Sahin","doi":"10.1109/ISCC.2003.1214261","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214261","url":null,"abstract":"In this paper, dynamic capacity management refers to the process of dynamically changing the capacity allocation (reservation) of a pseudo-wire established between two network end points. This process is based on certain criteria including instantaneous traffic load for the pseudo-wire, network utilization, time of day, or day of week. Frequent adjustment of the capacity yields a scalability issue in the form of a significant amount of message processing in the network elements involved in the capacity update process. On the other hand, if the capacity is adjusted once and for the worst possible traffic conditions, a significant amount of bandwidth may be wasted depending on the actual traffic load. There is then a need for dynamic capacity management that takes into account the tradeoff between scalability and bandwidth efficiency. This problem is motivated by voice over packet networks in which end-to-end reservation requests are initiated by PSTN voice calls and these reservations are aggregated into one signal reservation in the core packet network for scalability. In this paper, we introduce a Markov decision framework for an optimal reservation aggregation scheme for voice over packet networks. Moreover, for problems with large sizes, we provide a suboptimal scheme using reinforcement learning. We show a significant improvement in bandwidth efficiency in voice over packet networks using aggregate reservations.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130366548","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

Effects of fast routers advertisement on mobile IPv6 handovers 快速路由器发布对移动IPv6切换的影响

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214177

G. Daley, B. Pentland, R. Nelson

引用次数: 37

Management of wireless dynamic infrastructures 无线动态基础设施的管理

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214305

R. State, O. Festor

引用次数: 4

A fault-tolerant load-balancing protocol for distributed multiserver queuing systems 分布式多服务器排队系统的容错负载平衡协议

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214276

A. Kostin, G. Oz

引用次数: 0

A predictive and robust active queue management for Internet congestion control 一种用于Internet拥塞控制的预测性和鲁棒性主动队列管理

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214245

Seungwan Ryu, Christopher M. Rump, C. Qiao

引用次数: 66

AMCA: an active-based multicast congestion avoidance algorithm AMCA:一种基于主动的组播拥塞避免算法

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214207

M. Maimour, C. Pham

引用次数: 8

Low-cost coordinated nonblocking checkpointing in mobile computing systems 移动计算系统中的低成本协调非阻塞检查点

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214313

Weigang Ni, Susan V. Vrbsky, S. Ray

引用次数: 10

Towards knowledge management in autonomic systems 面向自主系统的知识管理

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214214

Thomas Cofino, Y. Doganata, Youssef Drissi, Tong-Haing Fin, Lev Kozakov, Meir Laker

引用次数: 10

An end-to-end QoS control scheme for video transmission over Internet 一种针对互联网视频传输的端到端QoS控制方案

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214228

Hayrettin Genel, Y. M. Erten

引用次数: 1

On traffic characteristics and bandwidth requirements of voice over IP applications IP语音应用的流量特性和带宽需求

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214297

S. Sharafeddine, A. Riedl, J. Glasmann, J. Totzke

{"title":"On traffic characteristics and bandwidth requirements of voice over IP applications","authors":"S. Sharafeddine, A. Riedl, J. Glasmann, J. Totzke","doi":"10.1109/ISCC.2003.1214297","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214297","url":null,"abstract":"Voice over IP (VoIP) services will play an important role in future IP networks, promising cost savings and new revenue sources to operators and service providers. To provide quality of service guarantees, certain mechanisms need to be implemented which support predictable packet handling, bandwidth allocation, and call admission control. In order to configure these mechanisms, a solid understanding of VoIP traffic characteristics and its respective bandwidth requirements is necessary. In this paper, we characterize traffic traces generated by various VoIP applications. According to the H.323 standard, the characteristics are described by means of token bucket parameters, which are then used to derive the required service rates for individual traffic flows. While in most cases sources send out fairly steady packet streams, there are situations where software based clients emit rather bursty traffic resulting in unreasonably high bandwidth needs. On basis of these traffic flows, we investigate the effects that token bucket parameters have on the bandwidth demand and discuss tradeoff possibilities in order to reduce it.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114564306","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: 30