2009 Next Generation Internet Networks最新文献_第2页

A Versatile Control Plane for EPON-based FTTX Access Networks 基于epon的FTTX接入网的通用控制平面

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175754

M. T. Ngo, A. Gravey

{"title":"A Versatile Control Plane for EPON-based FTTX Access Networks","authors":"M. T. Ngo, A. Gravey","doi":"10.1109/NGI.2009.5175754","DOIUrl":"https://doi.org/10.1109/NGI.2009.5175754","url":null,"abstract":"The Ethernet PON (EPON), standardized by the IEEE Ethernet First Mile Alliance, is viewed by many as an attractive solution to deliver very high-speed broadband access. While downstream traffic is broadcasted to all customers, the access of upstream traffic to the fiber has to be arbitrated in order to avoid collisions. This is achieved by designing both a Dynamic Bandwidth Assignment (DBA) that shares bandwidth opportunities between customers, and a scheduling policy, which is used by customers to take advantage of the allocated bandwidth opportunities. The DBA and the settings of the scheduling policy are part of the control plane of the PON, and thus characterize which types of services can be supported by the operator. EPON are widely deployed in some geographical areas, but usually offer a simple Best Effort access network. This paper proposes a versatile control plane for EPONs that can be configured to support either a classless Best Effort network, or several relative Classes of Services, or a mix of committed bandwidth and Best Effort services. This control plane includes a framework for enforcing Service Level Agreements, and fairly sharing available resources. The paper also addresses the issue of Connection. Acceptance Control for EPONs and explains its relationship with the DBA. The proposed framework is easily configured (all the control being centralized at the OLT or in the backbone) while allowing the support of large varieties of services.","PeriodicalId":162766,"journal":{"name":"2009 Next Generation Internet Networks","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116681040","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

Multimedia Data Transport for Wireless Sensor Networks 无线传感器网络的多媒体数据传输

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175768

João Almeida, A. Grilo, P. Pereira

{"title":"Multimedia Data Transport for Wireless Sensor Networks","authors":"João Almeida, A. Grilo, P. Pereira","doi":"10.1109/NGI.2009.5175768","DOIUrl":"https://doi.org/10.1109/NGI.2009.5175768","url":null,"abstract":"This paper presents the study and implementation of a reliable transport protocol for wireless multimedia sensor networks. The work was based on an existing transport protocol for sensor networks, the DTSN (\"Distributed Transport for Sensor Networks\") developed at Inesc within projects IST FP6 UbiSec&Sens, EuroFGI and FP7 EuroNF. \u0000 \u0000For multimedia data transport, some structural changes were made to DTSN, and mechanisms were added in order to provide a differentiated reliability service for packets flowing on the sensor network. The new service allows a multimedia data stream to be divided on several blocks with different reliability. The blocks' size and minimum reliability required are sent to the network by the client to configure and initialize the differentiated reliability service. Lost packets from multimedia blocks with the minimum reliability already assured will not be claimed lost by the receiver, and therefore will not be retransmitted. That will cause fewer retransmissions on the network, throughput improvements and an increase of network lifetime with no significant degradation of the transmitted stream. \u0000 \u0000A packet recovery module was also implemented, based on an additional parity packet that must be sent for each block, allowing the recovery of one lost packet per multimedia block. This module works on top of the transport layer, improving overall efficiency and being completely transparent to it. \u0000 \u0000The new multimedia DTSN protocol was tested in the TOSSIM network simulator. Functional and performance tests were made which have demonstrated the advantages of the proposed solution for multimedia transport in wireless sensor networks.","PeriodicalId":162766,"journal":{"name":"2009 Next Generation Internet Networks","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114575585","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: 10

Option-based Dynamic Management of Wireless Spectrum 基于选项的无线频谱动态管理

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175773

L. Mastroeni, M. Naldi

引用次数: 10

SpeedDetect: A Simple TCP Extension for Handling Sudden Capacity Increase SpeedDetect:一个简单的TCP扩展，用于处理突然的容量增加

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175783

G. Biczók, G. Németh, P. Tarján, F. Kubinszky, A. Veres

{"title":"SpeedDetect: A Simple TCP Extension for Handling Sudden Capacity Increase","authors":"G. Biczók, G. Németh, P. Tarján, F. Kubinszky, A. Veres","doi":"10.1109/NGI.2009.5175783","DOIUrl":"https://doi.org/10.1109/NGI.2009.5175783","url":null,"abstract":"Emerging broadband mobile cellular networks are inherently heterogeneous due to the co-existence of multiple wireless access technologies. In such a network sudden capacity changes are bound to happen due to inter-system handovers, user mobility and flow dynamics. Existing congestion control protocols are shown to deal sufficiently with capacity drops but tend to reach full link utilization slowly after abrupt capacity increases. \u0000 \u0000In this paper we prepose SpeedDetect, a simple, sender-side TCP extension for handling sudden capacity increase. The key idea behind our approach is to improve link utilization by explicitly detecting increased link capacity then triggering the underlying congestion control scheme to an aggressive probing regime. We evaluate the performance of SpeedDetect with testbed experiments and simulations. Our findings suggest that the proposed mechanism can significantly improve the reaction time of TCP by detecting sudden capacity increase quickly and consistently. Furthermore, our approach retains the RTT-fairness of the underlying TCP and exhibits favorable interprotocol fairness towards standard TCP NewReno.","PeriodicalId":162766,"journal":{"name":"2009 Next Generation Internet Networks","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126826056","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

Integration of Mobile Devices into Popular Peer-to-Peer Networks 将移动设备集成到流行的点对点网络

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175763

A. Berl, H. Meer

引用次数: 18

Performance of Wireless Heterogeneous Networks with Always-best-connected Users 具有始终最佳连接用户的无线异构网络的性能

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175776

N. Kaci, P. Maillé, J. Bonnin

引用次数: 6

Evaluation of Single Rate Multicast Congestion Control Schemes for MPEG-4 Video Transmission MPEG-4视频传输中单速率组播拥塞控制方案的评价

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175760

C. Bouras, A. Gkamas, Georgios Kioumourtzis

引用次数: 11

ClubMED: Coordinated Multi-Exit Discriminator Strategies for Peering Carriers 协同多出口鉴别器策略在对等载波中的应用

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175756

Stefano Secci, J. Rougier, A. Pattavina, F. Patrone, G. Maier

{"title":"ClubMED: Coordinated Multi-Exit Discriminator Strategies for Peering Carriers","authors":"Stefano Secci, J. Rougier, A. Pattavina, F. Patrone, G. Maier","doi":"10.1109/NGI.2009.5175756","DOIUrl":"https://doi.org/10.1109/NGI.2009.5175756","url":null,"abstract":"Inter-domain peering links represent nowadays the real bottleneck of the Internet. On peering links carriers may coordinate to efficiently balance the load, but the current practice is often based on an uncoordinated selfish routing supported by the peer relationship. We present a novel game theoretical routing framework to efficiently coordinate the routing on peering links while modelling the non-cooperative carrier behaviour. It relies on a collaborative use of the Multi-Exit Discriminator (MED) attribute of BGP, hence it is nicknamed ClubMED (Coordinated MED). The incentives are the minimization of carrier routing costs, the control of peering link congestions and peering route stability. For the ClubMED game, we define the Nash Equilibrium Multi-Path (NEMP) routing policy that shall be implemented upon Nash equilibria and Pareto-efficient profiles. Intra-domain Interior Gateway Protocol (IGP) weight optimizations are consistently integrated into the framework. \u0000 \u0000We emulated the peering settlement between the Internet2 and the Geant2 networks, employing real datasets, comparing the ClubMED results to the current BGP practice. The results show that the global routing cost can be reduced of roughly 17%, that the peering link congestion can be avoided and that the stability of the routes can significantly be reinforced.","PeriodicalId":162766,"journal":{"name":"2009 Next Generation Internet Networks","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122419247","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: 10

Robust Load-balancing under Statistical Uncertainty: Models and Polynomial-time Algorithms 统计不确定性下的鲁棒负载均衡:模型和多项式时间算法

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175781

A. Gunnar, M. Johansson

引用次数: 6

Revisiting Internet Access Pricing for Loyal Customers: the Long-Term Interaction Case 重新审视忠诚客户的互联网接入定价:长期互动案例

2009 Next Generation Internet Networks Pub Date : 2009-07-01 DOI: 10.1109/NGI.2009.5175780

T. Trinh, L. Gyarmati

{"title":"Revisiting Internet Access Pricing for Loyal Customers: the Long-Term Interaction Case","authors":"T. Trinh, L. Gyarmati","doi":"10.1109/NGI.2009.5175780","DOIUrl":"https://doi.org/10.1109/NGI.2009.5175780","url":null,"abstract":"Customer loyalty as part of user behaviour has significant impact on the Internet Service Providers' (ISPs) price setting strategies as shown recently in [1]-[5]. However, these papers focused mainly on short-term interactions of the ISPs, which - we believe - is not usually the case in practice as ISPs have to be aware of the long-term effects of their pricing decisions. Future-aware decision making is even more important if the structure of the local ISP market changes, e.g. a new ISP enters the market. In this paper, we address long-term pricing strategies of ISPs on local access markets with costumer loyalty. The contribution of the paper is threefold. Firstly, we present a case by empirical analysis for a user loyalty model, which differs from usual models as it is based on the price difference of the ISPs. Secondly, we present ISP pricing strategies on static ISP markets using game-theoretical tools. Thirdly, we model the dynamic ISP market with Stackelberg leader-follower game and propose equilibrium pricing strategies, taking into account the impacts of expected future incomes. Finally, we quantify and evaluate the effects of uncertainties of long-term decisions by simulating ISP markets.","PeriodicalId":162766,"journal":{"name":"2009 Next Generation Internet Networks","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126933895","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