2007 Second International Conference on Access Networks & Workshops最新文献_第2页

Radio-over fiber to increase effective coverage of motorway access networks 无线光纤增加高速公路接入网的有效覆盖

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447122

W. Xing, Yue Li, Jinho Choi

引用次数: 7

Delay analysis of ethernet passive optical networks with quasi-leaved polling and gated service scheme 具有准左轮询和门控服务方案的以太网无源光网络时延分析

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447110

Xiaofeng Bai, A. Shami, Y. Ye

{"title":"Delay analysis of ethernet passive optical networks with quasi-leaved polling and gated service scheme","authors":"Xiaofeng Bai, A. Shami, Y. Ye","doi":"10.1109/ACCESSNETS.2007.4447110","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447110","url":null,"abstract":"Ethernet passive optical networks (EPONs) have emerged as a promising solution for the next generation access networks. As this technology matures, intensive research work is underway to enhance its functional capability and economic viability. This work evaluates the performance of EPONs from the analytical perspective. Specifically, this study elaborates an analytical framework to explore the performance characteristic of EPONs with quasi-leaved polling operation and gated resource allocation policy. By investigating the temporal relationship of multiple events successively occurred in such a system, a graphical presentation is developed to facilitate more quantitative analysis. Using classical queuing theory, we then derive closed-form expression for the average packet queuing delay and average queue length of the researched EPON model. Simulation experiments show that the derived analytical expression can precisely evaluate the network performance for memoryless traffic inputs, as well as to closely estimate the performance of lightly loaded network for bursty input traffic profiles.","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":"115618617","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

Performance of rapid spanning tree protocol in access and metro networks 快速生成树协议在接入网和城域网中的性能

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447112

Richárd Pallos, J. Farkas, I. Moldován, Csaba Lukovszki

引用次数: 28

Urbino wireless campus: A wide-area university wireless network to bridge digital divide 乌尔比诺无线校园:一个广域大学无线网络，以弥合数字鸿沟

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447127

A. Bogliolo

引用次数: 7

A delay-based provisioning for Ethernet passive optical networks 基于延迟的以太网无源光网络配置

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447100

A. Nouroozifar, H. Naser, Hussein T. Mouftah

{"title":"A delay-based provisioning for Ethernet passive optical networks","authors":"A. Nouroozifar, H. Naser, Hussein T. Mouftah","doi":"10.1109/ACCESSNETS.2007.4447100","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447100","url":null,"abstract":"With the mass availability of Ethernet in local area networks (LANs) deployed globally and connecting LANs to metropolitan area networks (MANs) and wide area networks (WANs) via the current transport technologies there is a need to resolve bandwidth gap between access networks and transport networks. One of the proposals to overcome the famous last mile issue is to use a passive optical network (PON) for this networking segment. Varieties of access methods are under development to increase the offered potential transport capacity of passive optical networks (PONs). With the emergence of Ethernet as the convergence layer in access networks, a new breed of PON, namely Ethernet PON (EPON) has evolved. Ethernet passive optical network is one of the potential solutions, offering to solve the bottleneck issue of access networks and adaptability of carrying Ethernet frames from subscriber to service provider. In this study we will review Ethernet Passive Optical Networks (EPONs) and then we propose a delay-based provisioning algorithm to be able to offer differentiated services and QoS in EPON. Mathematical analysis and simulation results will be presented also.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"129 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":"121351296","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

A new control plane for next-generation WDM-PON access systems 下一代WDM-PON接入系统的新控制平面

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447099

M. Gagnaire, M. Koubàa

{"title":"A new control plane for next-generation WDM-PON access systems","authors":"M. Gagnaire, M. Koubàa","doi":"10.1109/ACCESSNETS.2007.4447099","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447099","url":null,"abstract":"Point-to-point or point-to-multipoint optical access systems are now considered as a viable alternative to xDSL technologies for broadband services. Point-to-multipoint WDM-PONs are the most advanced solution in this matter. Multiple architectures have been proposed since a few years for Next Generation WDM PON (NG-WDM-PON) operating on an hybrid TDMA (Time Division Multiple Access) and WDMA (Wavelength Division Multiple Access) mode. For that purpose, three key optoelectronic devices are considered: reflective modulators, AWG (Arrayed Waveguide Gratings) routers and tunable transceivers. The major investigations in this domain are mainly focused on physical layer aspects and on MAC protocols. In this paper, we propose an original control plane for NG-WDM-PON operating at two timescales: microscopic and macroscopic. The former deals with traditional packet access whereas the latter aims at two objectives. The first objective is to assign connections to upstream optical channels in order to optimize network utilization. The latter enables to reallocate dynamically the number of optical channels to the various PONs of the system. Numerous numerical results are presented in order to outline the benefit of this control plane. It becomes then possible to shift optical resources among the various geographical areas of the system according to their medium term activity.","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"32 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":"129183685","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

Overcoming the digital divide in rural areas serving broadband profitably to as few as 25 subscribers 克服农村地区的数字鸿沟，为仅有25个用户提供有利可图的宽带服务

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447125

François Ménard, R. Proulx

引用次数: 0

Enhancement of WiMAX downlink data rate using SDMA 利用SDMA提高WiMAX下行数据速率

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447138

N. H. Dawod, R. Hafez

引用次数: 1

Enforcing bandwidth allocation and traffic conformance in Passive Optical Networks 在无源光网络中加强带宽分配和流量一致性

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447102

M. T. Ngo, A. Gravey

{"title":"Enforcing bandwidth allocation and traffic conformance in Passive Optical Networks","authors":"M. T. Ngo, A. Gravey","doi":"10.1109/ACCESSNETS.2007.4447102","DOIUrl":"https://doi.org/10.1109/ACCESSNETS.2007.4447102","url":null,"abstract":"Broadband Passive Optical Network (PON) technology is a promising approach to establish a cost-effective access network. It is intended to provide a simple, low cost, scalable solution capable of delivering broadband access to end users, by passively sharing a single optical fibre transmission system between several customers. While downstream traffic is broadcasted to all customers, the access of upstream traffic to the fibre has to be arbitrated in order to avoid collisions. This arbitration mechanism and more generally, bandwidth distribution and QoS Provisioning, have been left to the implementer. An ideal Dynamic Bandwidth Allocation (DBA) should support both Committed Bandwidth and Best Effort services, with good control of the usual QoS characteristics (delay, jitter, loss) while utilizing the available bandwidth with good efficiency. It should also provide some isolation between end-users in order to offer a fair access to resources to all users. In this paper, we assume that each user negotiates classical traffic profiles for its upstream Committed Bandwidth traffic. We show that a DBA that does not take into account traffic conformance cannot isolate compliant users from non-compliant users, leading to QoS degradations of the upstream traffic for compliant users. We then propose a framework for taking into account the traffic conformance within the DBA used to arbitrate between users' demands. This study is illustrated on a priority based DBA designed for Ethernet Optical Networks (EPONs)","PeriodicalId":393914,"journal":{"name":"2007 Second International Conference on Access Networks & Workshops","volume":"2 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":"130831516","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: 7

OFDM impairment mitigation techniques OFDM损伤缓解技术

2007 Second International Conference on Access Networks & Workshops Pub Date : 2007-08-01 DOI: 10.1109/ACCESSNETS.2007.4447139

B. Umasankar, Xavier N Fernando

引用次数: 3