Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003最新文献_第2页

VOD services for mobile wireless devices 移动无线设备的VOD服务

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214184

Dario Bruneo, M. Villari, A. Zaia, A. Puliafito

{"title":"VOD services for mobile wireless devices","authors":"Dario Bruneo, M. Villari, A. Zaia, A. Puliafito","doi":"10.1109/ISCC.2003.1214184","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214184","url":null,"abstract":"Wireless devices are becoming very popular and powerful to be commonly adapted to access distributed services. More and more sophisticated applications are being developed and a very promising market is quickly being established where mobile users might access multimedia data while roaming from a cell to another, anytime and everywhere. Such scenario requires a strong infrastructure in order to adequately manage all the different issues related with high-level service provisioning. QoS represents one of the most crucial issues as it involves many different aspects and directly impacts the user satisfaction. In order to achieve this target, we propose an architecture, which allows mobile devices to access advanced services available in the wired part of the network. This architecture, based on mobile agents technology, assumes the presence of a VOD virtual server. The strategy adopted is to hide all the basic mechanisms inside a middleware layer that provides necessary interfaces to allow a simple interaction between the user on the one side and the network and the distributed services on the other. The overall architecture, that is currently being implemented and tested, has been used as an experimental environment to provide mobile users with a new service to access MPEG-4 flows.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"113 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":"124750145","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

Capacity analysis of a PMR system with DAB downlink 带有DAB下行链路的PMR系统容量分析

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214269

E. Sengul, Başak Can, N. Akar, Y. Z. Ider, H. Koymen

{"title":"Capacity analysis of a PMR system with DAB downlink","authors":"E. Sengul, Başak Can, N. Akar, Y. Z. Ider, H. Koymen","doi":"10.1109/ISCC.2003.1214269","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214269","url":null,"abstract":"Several trunked private mobile radio (PMR) systems have been designed over the last decade, most of which have symmetric downlink and uplink channel capacities. These systems may not be spectrally efficient in case of group or broadcast-based voice and data calls, a common feature of PMR systems. We propose a new asymmetric PMR system comprising a wideband OFDM-based downlink and a narrowband uplink, which not only achieves a better spectral efficiency but also can support high bit rate multimedia applications. The system is shown to have high trunking efficiency since all users are assumed to use the pool of channels available in the wideband downlink. In this paper, we study the performance and capacity of a private mobile radio system using a digital audio broadcasting (DAB) downlink. In particular, we study the efficiency of such a system for voice calls using voice activity detection and statistical multiplexing. Moreover, we show that, the efficiency of the system can significantly increase, if the incoming calls, which can not find an available channel, are allowed to wait a certain amount of time before occupying a channel.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"71 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":"129363526","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

Self adjustable CHOKe: an active queue management algorithm for congestion control and fair bandwidth allocation 自调节阻塞:一种用于拥塞控制和公平带宽分配的主动队列管理算法

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214249

Ying Jiang, M. Hamdi, J. Liu

引用次数: 21

A new end-to-end measurement method for estimating available bandwidth 一种新的端到端可用带宽估计测量方法

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214308

Liu Min, S. Jinglin, L. Zhongcheng, Kan Zhigang, Ma Jian

引用次数: 5

High performance routing in a LEO satellite network 低轨道卫星网络中的高性能路由

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214309

Roy Kucukates, Cem Ersoy

引用次数: 22

On the issues of IP traceback for IPv6 and mobile IPv6 关于IPv6和移动IPv6的IP溯源问题

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214181

Henry C. J. Lee, M. Ma, V. Thing, Yi Xu

{"title":"On the issues of IP traceback for IPv6 and mobile IPv6","authors":"Henry C. J. Lee, M. Ma, V. Thing, Yi Xu","doi":"10.1109/ISCC.2003.1214181","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214181","url":null,"abstract":"As the Internet becomes pervasive, the vulnerability of some fundamental design aspects of the Internet has also become significant. Among which, denial-of-service (DoS) and distributed DoS (DDoS) pose significant problems, as they are disruptive to the useful traffics and are hard to prevent. One solution consists in instituting accountability, which hold the attackers accountable for the attack. The key issue is to identify the real sources of the attacks and attackers use spoofed IP address to hide their actual network location. However, the Internet architecture does not provide intrinsic support for identifying the real sources of IP packets. Numerous mechanisms have been proposed to traceback the real sources. Most of such networks have been addressing the IP version 4. In this paper, we address the issues of IP traceback in the context of IPv6 and mobile IPv6. This paper provides a detailed analysis of these issues and problems. The main problem lies with the transformations that are introduced by IPv6 and mobile IPv6 protocols, namely tunneling and addresses manipulation. We then propose a solution, including new ICMPv6 messages for traceback co-ordination, to facilitate the traceback mechanism.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"18 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":"126039611","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: 13

Distributed network control for establishing reliability-constrained least-cost lightpaths in WDM mesh networks 分布式网络控制在WDM网状网络中建立有可靠性约束的最小成本光路

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214196

C. Saradhi, G. Mohan, Luying Zhou

引用次数: 8

A novel adaptive fuzzy logic controller (FLC) to improve Internet channel reliability and response timeliness 一种新的自适应模糊逻辑控制器(FLC)提高了网络信道的可靠性和响应时效性

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214300

Wilfred W. K. Lin, Allan K. Y. Wong

引用次数: 2

Design and performance analysis of adaptive transmit power control in point-to-point microwave link for rain attenuation problem 针对雨衰减问题的点对点微波链路自适应发射功率控制设计与性能分析

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214270

T. A. Rahman, Toh Chee Leng

引用次数: 6

VPN scalability over high performance backbones evaluating MPLS VPN against traditional approaches 通过高性能主干网对MPLS VPN进行可扩展性评估

Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003 Pub Date : 2003-09-23 DOI: 10.1109/ISCC.2003.1214243

F. Palmieri

{"title":"VPN scalability over high performance backbones evaluating MPLS VPN against traditional approaches","authors":"F. Palmieri","doi":"10.1109/ISCC.2003.1214243","DOIUrl":"https://doi.org/10.1109/ISCC.2003.1214243","url":null,"abstract":"The rapid growth of the Internet and the widespread deployment of networks built around the Internet protocol suite are creating a demand for new capabilities in IP networks. The IP-based virtual private network (VPN) technology is rapidly becoming the foundation for the delivery of future Internet services, and many service providers are offering value-added applications on top of their VPN transport networks. Two unique and complementary architectures based on traditional industry standard encrypted tunnels (IPSec) and still developing multiprotocol label switching (MPLS) technologies are emerging to form the predominant framework for delivery of high performance VPN services. We analyzed the strengths and the weaknesses of both the approaches, and compared their performance and scalability features by carefully testing them against the requirements of the future optical high performance backbones. Our technical considerations and experimental results strongly emphasized the better scalability and reliability of the MPLS/BGP model that seems to be the most promising approach for the provisioning of VPN services on the future Giga-speed optical backbones.","PeriodicalId":356589,"journal":{"name":"Proceedings of the Eighth IEEE Symposium on Computers and Communications. ISCC 2003","volume":"33 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":"114613445","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: 38