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Showing papers on "10G-PON published in 2009"


Journal ArticleDOI
TL;DR: The general requirements for NG-PON1 to support various popular applications many service providers expressed interests on as well as to enable smooth migration from Gigabit PON are detailed.
Abstract: Gigabit-class passive optical networks have been standardized and are now being deployed. This article presents possible migration scenarios toward the next-generation PON and proposes a technology roadmap of evolutionary growth (termed NG-PON1) vs. revolutionary change (termed NG-PON2). This article then details the general requirements for NG-PON1 to support various popular applications many service providers expressed interests on as well as to enable smooth migration from Gigabit PON.

280 citations


Patent
24 Jun 2009
TL;DR: In this article, an improved symmetric coupler arrangement is proposed to provide fiber failure protection in passive optical networks (PONs) at low cost and with minimal modification, which is readily implemented with minimal modifications.
Abstract: Methods and apparatus for providing enhanced optical networking service and performance which are particularly advantageous in terms of low cost and use of existing infrastructure, access control techniques, and components. In the exemplary embodiment, current widespread deployment and associated low cost of Ethernet-based systems are leveraged through use of an Ethernet CSMA/CD MAC in the optical domain on a passive optical network (PON) system. Additionally, local networking services are optionally provided to the network units on the PON since each local receiver can receive signals from all other users. An improved symmetric coupler arrangement provides the foregoing functionality at low cost. The improved system architecture also allows for fiber failure protection which is readily implemented at low cost and with minimal modification.

112 citations


Proceedings Article
16 Oct 2009
TL;DR: Using the architecture based on spectrum-sliced elastic optical path network (SLICE), it is demonstrated how the networking functionality can be effectively shifted to the optical domain.
Abstract: We discuss the scalability challenges facing the optical networks. Using the architecture based on spectrum-sliced elastic optical path network (SLICE), we demonstrate how the networking functionality can be effectively shifted to the optical domain.

105 citations


Proceedings ArticleDOI
TL;DR: This talk will focus on second- and third- generation networks including graceful evolution from single-wavelength to WDM and increasing integration of optical and wireless technologies.
Abstract: First-generation optical access networks have now been well-defined. This talk will focus on second- and third- generation networks including graceful evolution from single-wavelength to WDM and increasing integration of optical and wireless technologies.

41 citations


Journal ArticleDOI
TL;DR: The history of PONs is examined, their current status is investigated, and their future opportunities are explored, focusing on PON standards and on deployment trends.

40 citations


Proceedings ArticleDOI
17 Nov 2009
TL;DR: Several optical access network technologies are available for network operators providing broadband services (FTTx: Fiber-to-the-X solutions) and are now in deployment phase, therefore network and topology design issues play an increasingly important role.
Abstract: Several optical access network technologies are available for network operators providing broadband services (FTTx: Fiber-to-the-X solutions). These technologies are now in deployment phase, therefore network and topology design issues play an increasingly important role.

32 citations


Journal ArticleDOI
TL;DR: In this paper, the authors propose optical network unit architectures and discuss several technical challenges, which allow STARGATE EPONs (SG-EPONs) to evolve in a pay-as-you-grow manner while providing backward compatibility with legacy infrastructure and protecting previous investment.
Abstract: At present there is a strong worldwide push toward bringing fiber closer to individual homes and businesses. Another evolutionary step is the cost-effective all-optical integration of fiber-based access and metro networks. STARGATE (IEEE Commun. Mag., vol. 45, no. 5, pp. 50-56, May 2007) is an all-optical access-metro architecture that does not rely on costly active devices, e.g., optical cross connects or fixed wavelength converters, and allows low-cost passive optical network (PON) technologies to follow low-cost Ethernet technologies from Ethernet PON (EPON) access into metro networks, resulting in significantly reduced cost and complexity. It uses an overlay island of transparency with optical bypassing capabilities. We first propose optical network unit architectures and discuss several technical challenges, which allow STARGATE EPONs (SG-EPONs) to evolve in a pay-as-you-grow manner while providing backward compatibility with legacy infrastructure and protecting previous investment. Second, and considering all the hardware constraints, we present the corresponding dynamic bandwidth allocation algorithm for effective resource management in these networks and investigate their performances (delay, throughput) through simulation experiments.

23 citations


Proceedings Article
Dave Payne1
16 Oct 2009
TL;DR: In this paper, the authors propose an all-optical network architecture to: -greatly reduce the capital expenditure required for a true broadband network -massively reduce operational costs -produce an environmentally friendly network.
Abstract: • We have the opportunity with the all optical network of radically changing the architecture to: - Greatly reduce the capital expenditure required for a true broadband network - Massively reduce operational costs. - Produce an environmentally friendly network • ≫90% reductions in energy consumption. - Revolutionise the customer experience. • Click and its there! - Provide a reusable and continuously upgradeable physical infrastructure for the Next Generation 21st Century Network with true broadband capability!

23 citations


Proceedings Article
16 Oct 2009
TL;DR: In this paper, the authors give an overview of burst-mode receiver developments and design challenges associated with high speed TDMA PONs and recent results of 10Gb/s burstmode receivers are highlighted.
Abstract: The paper gives an overview of burst-mode receiver developments. The receiver design challenges associated with high speed TDMA PONs are discussed and recent results of 10Gb/s burst-mode receivers are highlighted.

14 citations


Journal ArticleDOI
TL;DR: This study proposes a practical transmission surveillance and self-protection scheme for time division multiplexing using passive optical network (TDM-PON), able to prevent and detect the occurrence of fibre faults in a network system through centralised monitoring and remotely operate from a central office via Ethernet connection.
Abstract: This study proposes a practical transmission surveillance and self-protection scheme for time division multiplexing using passive optical network (TDM-PON) with centralised monitoring and self-restorable apparatus. Troubleshooting a TDM-PON involves locating and identifying the source of an optical problem in what may be a complex optical network topology that includes several optical line terminals (OLTs), optical splitters, fibres and optical network units (ONUs). Since most components in the network are passive, a large part of the issues are due to dirty/damaged/misaligned connectors or breaks/macrobends in optical fibre cables. These will affect one, some or all subscribers in the network, depending on the location of the problems. The proposed scheme is able to prevent and detect the occurrence of fibre faults in a network system through centralised monitoring and remotely operate from a central office via Ethernet connection. Even with fibre fault prevention mechanisms, failures will still occur. Therefore fibre fault detection is required in order to detect potential faults and precisely localise the exact failure location. Whenever any failure occurs on the primary entity, the proposed system can protect and switch the failure line to the protection line to ensure that traffic flows continuously. Meanwhile, the failure information will be delivered to field engineers for taking appropriate recovery action to treat the fibre fault and failure link. One suggestion in point-to-multipoint (P2PM) applications has been proposed with the experimental results as the feasibility approach. This approach has bright prospects for improving the survivability and reliability as well as increasing the efficiency and monitoring capabilities in TDM-PON.

12 citations


Proceedings Article
16 Oct 2009
TL;DR: The new specification has successfully resolved a number of technical challenges, including the coexistence with the mass-deployed 1G-EPON, resulting in a highly efficient architecture.
Abstract: Responding to market demand for increased access capacity, the IEEE 802.3av has standardized 10G-EPON. The new specification has successfully resolved a number of technical challenges, including the coexistence with the mass-deployed 1G-EPON, resulting in a highly efficient architecture.

Journal ArticleDOI
TL;DR: The proposed architecture provides FTTX high bandwidth which enables to give out 10Gbit/s per end-user and physical layer modifications are used in the model to provide satisfactory solution for the bandwidth needs.
Abstract: We are developing a novel technology for the next generation optical access network. The proposed architecture provides FTTX high bandwidth which enables to give out 10Gbit/s per end-user. Increasing the subscribers in the future will cause massive congestion in the data transferred along the optical network. Our solution is using the wavelength division multiplexing PON (CWDM-PON) technology to achieve high bandwidth and enormous data transmission at the network access. Physical layer modifications are used in our model to provide satisfactory solution for the bandwidth needs. Thus high data rates can be achieved throughout the network using low cost technologies. Framework estimations are evaluated to prove the intended model success and reliability. Our argument that: this modification will submit a wide bandwidth suitable for the future Internet.

Posted Content
TL;DR: The transmission performance analysis of digital wire and wireless optical links in local and wide areas optical networks have been modeled and parametrically investigated over wide range of the affecting parameters.
Abstract: In the present paper, the transmission performance analysis of digital wire and wireless optical links in local and wide areas optical networks have been modeled and parametrically investigated over wide range of the affecting parameters. Moreover, we have analyzed the basic equations of the comparative study of the performance of digital fiber optic links with wire and wireless optical links. The development of optical wireless communication systems is accelerating as a high cost effective to wire fiber optic links. The optical wireless technology is used mostly in wide bandwidth data transmission applications. Finally, we have investigated the maximum transmission distance and data transmission bit rates that can be achieved within digital wire and wireless optical links for local and wide areas optical network applications.

Proceedings Article
16 Oct 2009
TL;DR: In this paper, a new home network delivering various signals (ethernet, digital terrestrial or satellite TV, Radio over Fibre) on a unique infrastructure has been proposed and validated by an implementation on graded index plastic fibre.
Abstract: We propose a new home network delivering various signals (Ethernet, digital terrestrial or satellite TV, Radio over Fibre) on a unique infrastructure. We have validated this concept by an implementation on gradedindex plastic fibre.

Proceedings ArticleDOI
31 Jul 2009
TL;DR: In this article, different architectures for optical access networks with emphasis on network node consolidation are analyzed with respect to optical reach and installation costs, and the results show that the costs for the feeder fibres between the new central network node and the former node being now deactivated represent a major cost part.
Abstract: The increasing demand for higher bit rates in access networks requires fibre deployment closer to the customer since bit rates in copper based access networks are strictly limited by the length of the copper cables. Besides higher access bit rates optical access network technologies enable extended distances between the network terminal at the customer premise and the line port at the access node due to the lower attenuation of optical fibres: The network operator is able to establish larger service areas resulting in a simplified network structure leading to a cost-efficient re-design of the network. In this paper different architectures for optical access networks with emphasis on network node consolidation are analyzed with respect to optical reach and installation costs. Based on simplified device and cost models the results show that the costs for the feeder fibres between the new central network node and the former node being now de-activated represent a major cost part. In order to economically re-design the access network, technologies with a high multiplexing factor and a cost-efficient operation are necessary.


Journal ArticleDOI
TL;DR: An overview of widely accepted passive optical networks (PONs) is presented, and the results of comparative OPTSIM simulation for PON technological facilities involving optical layers are provided, with the aim to reveal fiber-to-the-x (FTTx) technologic solutions.
Abstract: Research of Traffic Management in Fttx Optical Communication Systems The paper presents an overview of widely accepted passive optical networks (PONs), and provides the results of comparative OPTSIM simulation for PON technological facilities involving optical layers, with the aim to reveal fiber-to-the-x (FTTx) technologic solutions. Traffic load is simulated over a PON optical layer using the OPNET Modeler to determine potential advantages and drawbacks of the proposed FTTx solution with PON elements in the access networks. The authors show that the optimal transmission speed for PON FTTx would lie in the range 1.25-5.0 Gbit/s with a standard PON architecture, which could be raised to 10 Gbit/s, however in this case we have to change the end user's equipment. In standards that specify the PON's functionality two distances: 10 km and 20 km are indicated. Our simulation shows that, after upgrading the receiver electrical filter, 10 Gbit/s transmissions over 40 km could be reached. Trafika Vadības Izpēte Dlx Optiskajā Sakaru Sistēmā Darbā, ar OPTSIM simulācijas programmatūras palīdzību pētītas un salīdzinātas vairākas pasīvas optisku tīklu (POT) arhitektūras. Novērtēti tehnologiskie risinājumi dzīslā līdz x (DLx) fiziskajam slānim. Trafika simulācijas ir veiktas ar OPNET Modeler programmatūru un ir izveidotas rekomendācijas DLx sistēmas realizācijai. Autoru pētījums ir pamatots ar nepieciešamību integrēt jaunas sistēmas jau esošajos POT risinājumos. Pētījumā uzskatāmi demonstrēts kā optimālais pārraides ātrums POT DLx sistēmās atrodas starp 1,25 Gbit/s un 5 Gbit/s standartiem POT risinājumā. Mainot klienta gala aparatūru, iespējams paaugstināt ātrumu līdz 10 Gbit/s un palielināt attālumu no 20 līdz 40 km, nemainot visu POT arhitektūru, bet mainot tikai uztvērēja bloka elektrisko filtru.

Proceedings Article
16 Oct 2009
TL;DR: A WDM-PON with simultaneous delivery of 10-Gb/s downstream unicast and upstream data as well as 10-gb/s multicast data is proposed.
Abstract: A WDM-PON with simultaneous delivery of 10-Gb/s downstream unicast and upstream data as well as 10-Gb/s multicast data is proposed. Downstream multicast data is superimposed onto the subcarrier generated by optical carrier suppression technique.

01 Jan 2009
TL;DR: The optical transport systems use ROADMs to set up wavelength paths between IP nodes flexibly to achieve path quality management and high path reliability.
Abstract: INTRODUCTION OPTICAL network systems include metro and access transmission networks in metropolitan areas and between homes or businesses and central offices, and optical transport networks for longdistance transmission between major central offices. Traditionally, optical network systems provide logical paths with a fixed bandwidth to the higher service layers such as telephony, and path operation and maintenance was performed by transferring any alarms that occurred in these logical paths to related devices and by switching failed paths over to standby paths. OVERVIEW: With the advent of full fledged NGNs where data, voice, and video are all IP based, it is necessary for the provision of stable services to provide metro access systems and optical transport systems that allow paths to be operated and maintained over packet networks. In order to achieve such highly managed IP networks, the end-to-end QoS is guaranteed by managing IP network resources using Transport-MPLS in a centralized manner and by allocating fixed routes and resources for the packet transfer function. The optical transport systems use ROADMs to set up wavelength paths between IP nodes flexibly to achieve path quality management and high path reliability.

Proceedings ArticleDOI
28 Dec 2009
TL;DR: Two high level scheduler algorithms inside the Optical Line Terminal (OLT) and Optical Network Units (ONU) are proposed that provide dynamic bandwidth allocation and separate the burden of queue management fairly between the customer and the network.
Abstract: Passive Optical Networks (PONs) are thought to be the next step in the development of Access Networks and providing broadband access in the “last mile” area. Ethernet PON (EPON) gains the most attention from the researchers as it offers highly flexible and cost effective solution. In this paper we propose two high level scheduler algorithms inside the Optical Line Terminal (OLT) and Optical Network Units (ONU). In the proposed Dynamic Bandwidth Allocation (DBA) algorithm, the OLT allocates the bandwidth to the ONUs in proportion to the weight associated with the excess bandwidth available, while the ONU preferentially allocates its bandwidth to queues with a strict or non strict priority order. The algorithms provide dynamic bandwidth allocation and separate the burden of queue management fairly between the customer and the network. This led to less complicated and more intelligent equipment has been used on the customer’s premises. We show the results of simulations to validate the effectiveness of algorithms presented and to provide quality of service (QoS) for triple play real time services in Ethernet passive optical networks (EPONs).

Proceedings ArticleDOI
31 Jul 2009
TL;DR: This paper focuses on mm-wave radio over fiber (RoF) optical access network architectures which combine radio subcarrier multiplexing techniques to improve system efficiency with fiber dispersion mitigation provided by optical single sideband modulation techniques.
Abstract: This paper discusses hybrid fiber optic access network architectures combining baseband wireline and mm-wave channels. We focus on mm-wave radio over fiber (RoF) optical access network architectures which combine radio subcarrier multiplexing techniques to improve system efficiency with fiber dispersion mitigation provided by optical single sideband modulation techniques. Besides discussing the network architecture we focus on the intermodulation effects arising from the nonlinear characteristics of the optical modulator and the reflective semiconductor optical amplifier.

Patent
17 Jul 2009
TL;DR: In this paper, a passive optical network (PON)-based wireless backhaul system was proposed to enable QoS-enabled communication between the cell sites and the central office network.
Abstract: A wireless communication network system includes a central office network, a plurality of cell sites, each for communicating wirelessly with external cellular phones within its transmission range, and a passive optical network (PON)-based wireless backhaul system that transfers communication information between the cell sites and the central office network. The PON-based wireless backhaul system further includes at least a source optical network terminal (ONT), an optical line terminal (OLT), and a quality of service (QoS) converter in each of the source ONT and OLT to allow for quality of service-enabled communication between the cell sites and the central office network via the PON-based wireless backhaul system.

Proceedings ArticleDOI
01 Dec 2009
TL;DR: An in-home network prototype for distributing video, audio and data information based on large core step-index plastic optical fibres (SI-POF) is developed to demonstrate a viable uncluttered application of the POFs where the up to date technologies converge in a homogeneous domestic system.
Abstract: Plastic Optical Fibre (POF) constitutes an advantageous alternative medium to implement domestic data networks. In this proposal, we develop an in-home network prototype for distributing video, audio and data information based on large core step-index plastic optical fibres (SI-POF). The aim is to demonstrate a viable uncluttered application of the POFs where the up to date technologies converge in a homogeneous domestic system.

Proceedings Article
Y. Chang1
16 Oct 2009
TL;DR: In this article, the system-level requirements and challenges for next-generation coexistence 10G PON are reviewed and a fast response/locking burst-mode physical-layer chipset for IEEE 10G EPON and FSAN 10G NG-PON is presented.
Abstract: This paper reviews the system-level requirements and challenges for next-generation coexistence 10G PON, and demonstrates for the first time a fast response/locking burst-mode physical-layer chipset to operate at various worst-case conditions for either IEEE 10G EPON or FSAN 10G NG-PON standards.

Proceedings ArticleDOI
01 Dec 2009
TL;DR: A unified communication backbone network that seamlessly integrates wireless backhaul networks with the optical access network can offer significant benefits to network operators through consolidation of network infrastructure.
Abstract: Given the steady growth in both the deployment of broadband wireless access (BWA) networks as well as the increase in their bandwidth requirements, there is a real demand for high bandwidth backhaul connectivity between antenna base-stations (BSs) and the switching center. On the other hand, increasing deployment of optical access networks and associated backbone networks provide greater access to a high bandwidth fiber network. A unified communication backbone network that seamlessly integrates wireless backhaul networks with the optical access network can offer significant benefits to network operators through consolidation of network infrastructure. In addition, such a unified backbone network would provide a future-proof and scalable infrastructure to cope with the future growth in demand for both wireless and wired broadband connectivity. However, it will demand a common physical layer transmission technology that allows easier transport of both wireless and optical signals cost-effectively.

Proceedings Article
16 Oct 2009
TL;DR: In this article, the authors propose plug and play techniques for optical network configuration, which can reduce the manual operation labor needed to commence services and simplifies management activities, and evaluate the results in a real network.
Abstract: This paper proposes plug and play techniques for optical network configuration. The techniques can reduce the manual operation labor needed to commence services and simplifies management activities. Evaluation results in a real network are reported.

Proceedings Article
Frank Effenberger1
16 Oct 2009
TL;DR: In this paper, the authors review the lessons learned in the standardization and deployment of the current generation of passive optical networks and suggest how these lessons might be applied to the next round of PON standardization.
Abstract: This paper reviews the lessons learned in the standardization and deployment of the current generation of passive optical networks (PONs). It suggests how these lessons might be applied to the next round of PON standardization.

01 Jan 2009
TL;DR: This Review Paper prepares an introduction to Ethernet passive optical networks structure, totally categorizes the bandwidth allocation methods to three groups as Static and Router-Based and Windows-Based, and proposes an algorithm on dynamic bandwidth allocation which is proposed and evaluated.
Abstract: A detailed understanding of the many facets of the Internet's topological structure is critical for evaluating the performance of networking protocols, for assessing the effectiveness of proposed techniques to protect the network from nefarious intrusions and attacks, or for developing improved designs for resource provisioning. In this way Available bandwidth estimation is a vital component of admission control for quality-of-service (QoS) on Internet in the world. In coming years, Optical networks are come to dominate the access network space. Ethernet passive optical networks, which influence the all of subscriber locations of Ethernet, seems bound for success in the optical access network. In this Review Paper we first prepare an introduction to Ethernet passive optical networks structure, then related to our totally categorize the bandwidth allocation methods to three groups as Static and Router-Based and Windows-Based, we will explain seven major weaknesses on static group and describe the improvements on them one by one. Finally in this survey, we found some roles and principles in static bandwidth allocation methods which explain them separately. We hope in the next article we will explain the Dynamic bandwidth allocation weaknesses and improvements then make a comparison between static and dynamic bandwidth allocations. Following that, at the end, we will propose an algorithm on dynamic bandwidth allocation and evaluate it.

Proceedings ArticleDOI
25 Jul 2009
TL;DR: In this article, an access control system (ACS) mechanism against distribution fiber fault in fiber to the home (FTTH) passive optical network (PON) is proposed and experimentally demonstrated.
Abstract: This paper proposes and experimentally demonstrates an access control system (ACS) mechanism against distribution fiber fault in fiber to the home (FTTH) passive optical network (PON). ACS will be installed between with optical line terminal (OLT) at the central office (CO) to monitor and control each optical fiber line's status and detect the failure that occurs in the drop region of PON downstream from CO to the optical network unit (ONU). The technique is based on the remote host of optical switch, and the web-server would help discern an individual event during the monitoring of the FTTH PON in collaboration with the information provided by the optical switch. The FTTH-PON architecture can be analyzed by the monitoring method by using the OTDR at the central office (CO) under the in-service state of FTTH-PON. Moreover, the downstream traffic performance has also been measured and discussed in PON architecture.

Proceedings Article
15 Feb 2009
TL;DR: This work presents a hybrid passive optical network, where WDM PON and existing TDMA PON are integrated into a single passive Optical network.
Abstract: WDM-PON (Wavelength Division Multiplexing - Passive Optical Network) is the next generation access network which utilizes multiple wavelengths on a single fiber. However, for the practical deployment of WDM-PON, the optical network terminal (ONT) placed in the subscriber premises should be wavelength-independent or wavelength-free, in addition to being cost-competitive to existing technologies. We present a hybrid passive optical network, where WDM PON and existing TDMA PON are integrated into a single passive optical network. The feeder part is composed of the color-less WDM PON technology based on RSOA transmitters. The access part (distribution and drop parts) remains as the conventional TDMA-PON (E-PON or G-PON). The connection function between the WDM and TDMA sectors is performed at the X-box, which has this additional function to the conventional TDMA-PON ONU functions.