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2007 Second International Conference on Access Networks & Workshops最新文献

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Design and cost performance of WDM PONs for multi-wavelength users 面向多波长用户的WDM pon的设计与性价比
2007 Second International Conference on Access Networks & Workshops Pub Date : 2009-06-23 DOI: 10.1109/ACCESSNETS.2007.4447101
Jürgen Schussmann, Thomas Schirl
{"title":"Design and cost performance of WDM PONs for multi-wavelength users","authors":"Jürgen Schussmann, Thomas Schirl","doi":"10.1109/ACCESSNETS.2007.4447101","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447101","url":null,"abstract":"In many research labs, WDM PON access networks are considered as the next generation optical access. WDM PONs are more adaptable to future technologies than conventional PONs due to their high transmission capacity and their optical transparency. An elementary design concept is the paradigm that defines at least one wavelength for each user. A design tool is presented to analyze all technologically feasible WDM PON architectures and the cost performance based on an optical routing device, the Waveguide Grating Router.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122758789","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
A cost model for broadband access networks: FTTx versus WiMAX 宽带接入网络的成本模型:FTTx与WiMAX
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-09-09 DOI: 10.1117/12.746250
J. Pereira
{"title":"A cost model for broadband access networks: FTTx versus WiMAX","authors":"J. Pereira","doi":"10.1117/12.746250","DOIUrl":"https://doi.org/10.1117/12.746250","url":null,"abstract":"Local communities and governments are taking various steps to fight the so-called \"digital divide\" between well served urban communities and undeserved areas. In order to make broadband access available to these under served areas, several technical solutions are available with the capacity to provide high speed Internet access, video, telephony services, etc. This paper presents a cost-model and a tool for the evaluation of broadband access technologies (xDSL, HFC, FTTx, WiMAX, PLC and satellite), and compares two technologies: FTTx and WiMAX. Our tool compares these different access technologies in different scenarios, and examining the capital expense and deployment of building access networks with the same requisite performance using each technology. The cost model is limited to the access part of the network. The results obtained by our evaluation tool give the possibility to compare several BB access technologies, and support the decision about which is the better technological solution for a given scenario.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133142239","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: 18
Design of a of a survivable multi-wavelength photonic access network 生存型多波长光子接入网的设计
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-23 DOI: 10.1109/ACCESSNETS.2007.4447123
R. Roy, W. Etten
{"title":"Design of a of a survivable multi-wavelength photonic access network","authors":"R. Roy, W. Etten","doi":"10.1109/ACCESSNETS.2007.4447123","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447123","url":null,"abstract":"This paper investigates the design of protection schemes in an extended access network. The network is modeled as a stack of quasi independent logical passive optical networks (PONs), each operating the IEEE Ethernet passive optical networks (EPON) protocol. The dynamics of the network operation when protection schemes are employed are presented and discussed.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123116956","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
Existing-lightpath-aware zone-based approach for efficient and scalable dynamic traffic grooming in large optical WDM mesh networks 基于现有光路感知区域的大型WDM网状光网络中高效、可扩展的动态业务疏导方法
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-22 DOI: 10.1109/ACCESSNETS.2007.4447144
Quang-Dung Ho, T. Le-Ngoc, M. Lee
{"title":"Existing-lightpath-aware zone-based approach for efficient and scalable dynamic traffic grooming in large optical WDM mesh networks","authors":"Quang-Dung Ho, T. Le-Ngoc, M. Lee","doi":"10.1109/ACCESSNETS.2007.4447144","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447144","url":null,"abstract":"This paper proposes an efficient and scalable dynamic traffic grooming algorithm suitable for large WDM mesh networks by limiting the zone where lightpaths for new connection requests are searched. Besides, in order to maintain the multi-hop grooming flexibility, the searching zone can be dynamically enlarged according to the availability of groomable existing or new lightpaths and the physical connectivity between network nodes. We develop a mathematical model to estimate the possibility that a node connects the source and destination when included to enlarge the searching zone, and to ensure that the selected lightpath is resource-efficient. Simulation results demonstrate that the proposed algorithm can significantly reduce the computations and improve the blocking performance.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125779078","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
An application of the context transfer protocol: IPsec in a IPv6 mobility environment 上下文传输协议IPsec在IPv6移动环境中的应用
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-21 DOI: 10.1109/ACCESSNETS.2007.4447133
F. Allard, J. Bonnin
{"title":"An application of the context transfer protocol: IPsec in a IPv6 mobility environment","authors":"F. Allard, J. Bonnin","doi":"10.1109/ACCESSNETS.2007.4447133","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447133","url":null,"abstract":"rdquoThe use of the Internet must be able to be in confidence for users but security provisioning has a cost for ISPs'. In a mobility context this security must be set up from scratch after each handover and for each customer. Therefore, a mechanism has been designed in the standardization bodies: the Context Transfer. This mechanism aims to transfer suitable information between equipments in order to reduce handover time. The benefit for an operator would then be a same security level during and after handover in mobile networks but with a cost as lower as possible. The purpose of this paper is to set out an application of the Context Transfer Protocol to IPsec (Security Architecture for the Internet Protocol) in a IPv6 mobile environment. After a state of the art of context transfer for security, the paper quickly presents CXTP (Context Transfer Protocol ) defined at the IETF (Internet Engineering Task Force). Then, it defines the IPsec context and finally, it describes a CXTP based solution to transfer this context between two access routers in a IPv6 mobility environment.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"332 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122841985","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: 14
Strategies for fast scanning and handovers in WiMAX/802.16 WiMAX/802.16中快速扫描和切换的策略
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447132
Paul Boone, M. Barbeau, E. Kranakis
{"title":"Strategies for fast scanning and handovers in WiMAX/802.16","authors":"Paul Boone, M. Barbeau, E. Kranakis","doi":"10.1109/ACCESSNETS.2007.4447132","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447132","url":null,"abstract":"In WiMAX/IEEE 802.16 with mobility support, scanning for an available channel by a mobile station, at start up or when about to perform a handover must be done promptly in order to reduce delays in network access. We propose strategies that a mobile station can use to reduce the time required for scanning operations while attempting to establish network connectivity or perform a handover between neighboring base stations. We model and simulate an area of WiMAX coverage using real-world mobility trace data and show that there are strategies that reduce the time required for scanning operations significantly.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123691763","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
Analysis of OFDM signal through optical fiber for Radio-over-Fiber transmission 光纤传输OFDM信号的分析
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447145
B. Dhivagar, Ganesh Madhan Muthu, Xavier N Fernando
{"title":"Analysis of OFDM signal through optical fiber for Radio-over-Fiber transmission","authors":"B. Dhivagar, Ganesh Madhan Muthu, Xavier N Fernando","doi":"10.1109/ACCESSNETS.2007.4447145","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447145","url":null,"abstract":"Radio-over-fiber (RoF) has emerged as a potential candidate for the transport of microwave, cellular and wireless broadband signals for coverage extension, antenna remoting and other high speed applications. OFDM has found its way as wireless standard for LAN and MAN systems due to its spectral efficiency and interference rejection capability. In this paper, a single mode fiber optic link is modeled for the transmission of OFDM based WLAN signals. A rate equation model was utilized for modeling the 1550 nm DFB laser source based transmitter. The BER performance of the WLAN signal transmission through the fiber optic link is examined both in the forward and reverse direction. Further the effect of wireless channel along with the fiber dispersion is also determined.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123004346","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
A simple packet-classifier algorithm for QoS control in home networks 一种用于家庭网络QoS控制的简单分组分类器算法
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447107
T. Takabatake
{"title":"A simple packet-classifier algorithm for QoS control in home networks","authors":"T. Takabatake","doi":"10.1109/ACCESSNETS.2007.4447107","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447107","url":null,"abstract":"Recently, technology of appliances being networked together in the home has been deployed. To connect the Internet with the home, a home gateway plays an important role in a home network. However, to be more comfortable in the environment of living for the home by networked appliances and by controlling them, services such as quality of service (for short, QoS) supported applications, remote control of appliances, and safety/security of the home network still have not been realized enough. In such services, especially, the home gateway for QoS control needs to deal with real-time data in applications. In this paper, a packet-classifier algorithm for QoS control in the home gateway is proposed and its performance is evaluated. The proposed method is forwarded a real-time packet precedent. The feature of the proposed method is a simple and deterministic process for packets such as a round-robin manner. Simulation studies show that the proposed method can balance the process of the packets compared with the algorithm without QoS.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115827257","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
Bandwidth guarantees for resilient Ethernet networks through RSTP port cost optimization 通过RSTP端口成本优化，为弹性以太网提供带宽保障
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447113
A. Kern, I. Moldován, T. Cinkler
{"title":"Bandwidth guarantees for resilient Ethernet networks through RSTP port cost optimization","authors":"A. Kern, I. Moldován, T. Cinkler","doi":"10.1109/ACCESSNETS.2007.4447113","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447113","url":null,"abstract":"Ethernet protocol is the most wide-spread protocol in the local area network (LAN) environment. It is cost effective, simple, and provides high speeds, exactly what is needed in the provider network. However, deployment in the provider network imposes carrier-grade requirements. Standardization bodies realized this, and they are extending its capabilities: QoS support and traffic management by 802.1Q virtual LANs (VLANs), traffic engineering by 802.1s multiple spanning tree protocol (MSTP), administration and management issues by 802.1 ag connectivity fault management (CFM). However, with carrier-grade extensions Ethernet started to lose an important property: simplicity. Often the topology of the Ethernet aggregation is simple, tree-like, so complex protocols like MSTP are not required even when resilience is supported by adding several links. In most cases the plain rapid spanning tree protocol (RSTP) can provide the necessary restoration and loop protection capability. However, the default settings of the RSTP protocol may not provide optimal network utilization, and it is difficult to predict its behavior after a failure. In this paper we present a tool for RSTP optimization, which engineers the network for best utilization while also ensures that optimal paths will be selected after a link failure. The result of the optimization is a port cost set for all bridge interfaces. The optimization is performed off-line using an integer linear program (ILP). We show that compared to the default settings higher throughput can be achieved, while the required bandwidth is guaranteed in case of any link failure.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121166329","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
A method and study of topology control based self-organization in Mesh Networks 网状网络中基于自组织的拓扑控制方法与研究
2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447134
V. Mirchandani, A. Prodan, J. Debenham
{"title":"A method and study of topology control based self-organization in Mesh Networks","authors":"V. Mirchandani, A. Prodan, J. Debenham","doi":"10.1109/ACCESSNETS.2007.4447134","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447134","url":null,"abstract":"An algorithm for self-organization that assigns the channels intelligently in multi-radio wireless mesh networks (MR-WMN) is important for the proper operation of MR-WMN. The aim of the self-organization algorithm is to reduce the overall interference and increase the aggregate capacity of the network. This can be possible by addressing the two major challenges that are associated with the self-organization of MR-WMN - scalability and stability. In this paper, we have first proposed a generic self-organization algorithm that addresses these two challenges. The basic approach is that of a distributed, light-weight, co-operative multiagent system that guarantees scalability. Second, we have evaluated the performance of the proposed self-organization algorithm for two sets of initialization schemes. The initialization process results in a topology control of MR-WMN by way of spatial distribution of connectivity between the mesh nodes. The results have been obtained for realistic scenarios of MR-WMN node densities and topologies.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116730855","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: 8
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