The long reach optical access network lroan objective is to increase the reach of optical access network under a common umbrella. The traditional access fiber architecture has been the fiber remote, which is a highspeed fiber trunk sonet or ethernet that terminates in an electrooptical multiplexer. Optical splitters creating a point to multipoint topology are also the same technology regardless of the type of pon system, making any pon network upgradable by changing the optical network terminals ont and optical line terminal olt terminals at each end, with minimal change to the physical network. Convergence of optical and wireless access networks.
This optical networking training course is designed to provide a good technical overview for strategic or technical managers, consultants, communications professionals, software engineers, system engineers, network professionals, marketing and sales professional, it professionals, and others who plan on using, evaluating or working with optical. Objectoriented software for modeling optical access networks. Introduction as we known, the core of most current operator networks is the asynchronous digital hierarchy synchronous optical network sdhsonet, which has always offered good fault management, performance monitoring, predictable latency, a protection mechanism and, of course, synchronization. Our professional staff consists of three new york state licensed. Highcapacity optical fiber links between cities and major hubs e. This tutorial paper provides an overview of studies and works to address the power saving issue in the optical access network oan, which typically comprises passive optical networks pons and ethernet aggregators eas. An optical fiber is a long thin strand of impurityfree glass used as a transport medium for data. The proposed tutorial will be a collections of background, stateoftheart, and open research topics in the area of cloud radio access networks. The network interface card address, called the hardware address, is protocolindependent and is usually assigned at the factory.
Wavelength division multiplexing approach is used to route signals on the man. Gpon network consists of mainly two active transmission equipments, namely optical line termination olt and optical network unit. University academy formerlyip university cseit 11,470 views. The intention of implementing optical access network also reveals some critical. Download ebook on optical networks tutorial tutorialspoint.
It is contrasted with the core network, for example the network switching subsystem in gsm which connects local providers to one another. They are based on optical technologies and components, and are used to route, groom, and restore wavelength levels and wavelengthbased services. Optical networks may be single wavelength or multiplewavelengths wdm. Demo of uncompressed hdtv over both wireline and wireless links. This tutorial is intended to make you comfortable in getting started with fiber to the. The course will give the student indepth understanding of the functionality of optical networks and how they may be implemented. Web proforum tutorials copyright the international engineering consortium 29. Radio access network tutorial pdf the entities in utran are. Access networks providing peripheral links lastmile access to the endusers. Access network, access technologies, broadband services and applications access network, c. Following are the pon terminologies odn optical distribution network. A typical pointtopoint fiber optic communication network consists of a transmitter laser, a transport medium optical fiber and a receiver photodiode as in figure 1. A reconfigurable optical layer enables the following.
All the networks using optical fiber as transmission medium optical networks when transmitted signal remains in optical form till its arrival at destination all optical network. Lans and wans can be interconnected via t1 or t3 digital leased linesaccording to the protocols involved, networks interconnection is achieved using one or several of the following devices. How an optical network can work together with an ipbased network infrastructure for ensuring both high reliability and performance in access, metro and transport networks, is paid special attention. Technologies and deployment strategies presents a comprehensive overview of emerging optical access network solutions to efficiently meet the anticipated growth in bandwidth demand. Developed originally by bellcore to allow midspan meet between carriers. Efficiency in these processes translate into lower cost layout and construction, more productive system migration and field operations, lower optical loss budget, and greater business. This course will be taught every second year, next time autumn 2020. Make your network efficient by using the same optical transport platform for every application, fiber type, and reach. Our 1830 photonic service switch meets all your optical transport needs.
Point to multipoint ethernet passive optical network epon tutorial. How an optical network can work together with an ipbased network infrastructure for ensuring both high reliability and performance in access, metro and tra. Giving service providers the tools to reliably shift their operating model from configuring to programming brings a radical transformative opportunity with. The use of sonetsdh with a single carrier is a typical example of an opaque, singlewavelength optical network. After discussin goptical access network classification, we focus mainly on passive optical networks pon because pon is a major technology today. Access network, access technologies, outline broadband.
In the second, one fiber is shared via a power splitter amongst a set amount of users. In light of the 5g deployments, edge computing, and future high bandwidth services, the industry is rethinking the optical access network architecture design. Optical network elements support ondemand provisioning of connectivity and capacity where required in the network, thus permitting the construction of thin, but. An overview of gpon in thean overview of gpon in the access.
This tutorial will address all of these questions and explain the technologies, architectures, and market trends for emerging optical networks. Your entire family is welcomed from the children to the seasoned adult, we will make sure you are treated like family. Summary access networks are advancing toward high data rates and flexibility with scope for scalability and reach. Optical fiber networks have high capacity can be used for providing the high bandwidth services even in wireless, infrared means high bandwidth connectivity. A passive optical network pon is a fiberoptic telecommunications technology for delivering. The bandwidth explosion ushered in by the popularity of the internet has led to a paradigm shift in the telecommunication industry from voiceoptimized circuitswitched services to dataoptimized packetswitched services.
Mathew oommen, vice president, network architecture, williams communications group this book functions as both an introduction to optical networking and as a text to reference again and again. The optical channel layer network p rovides endtoend connection of optical channels for transmit information of varying formats. The optical access network is an access network towards the network side. Program to remotely power on a pc over the internet using the wakeonlan protocol. Passive optical network pon with its efficient fiber infrastructure plays an essential role in this design transformation.
Easy engineering rules single hop only easy addition of new network elements. Optical networking technology is well suited to meet the above challenges. All optical subscriber access networks will be quite limited most of the access network is expected to be dominated by wireless. Covering topics such as nextgeneration networking, communication networks, and photonics, this book provides the. Power saving techniques and mechanisms for optical access.
This tutorial is divided into distinct chapters, which explains the structural features of optical fibers and their connections in. Mesh optical network ipmpls subnetwork control path data path uni uni ipmpls subnetwork fig. Example of access networks are i twisted copper pairs connecting to each individual household ii residential coaxial cable drops from community antenna tv. Richly illustrated throughout to help clarify important topics, broadband optical access networks covers the architectures, protocols enabling technologies of broadband optical access networks, and all current and future competing technologies for access networks.
Optical networking training overview tutorial course. First, it describes techniques to reduce the power consumption of the optical network unit in each subscribers home. Stamoulis broadband access 6 basic access technologies twisted pair copper vbd isdn hdsl adsl sdsl vdsl wireless. Great for system designers as well as those marketing and selling those systems. Using this package, a planner or designer is able to construct networks on actual location maps and then obtain forward and. Note that standards use terminology node b for base.
Optical networks i about the tutorial optical networks are telecommunications network of high capacity. Optical access networks optical wdm networks wiley online. An access network is a type of telecommunications network which connects subscribers to their immediate service provider. An optical fiber is made of 3 concentric layers see figure 3. In the first one fiber is dedicated to each user in the access network. The optical industry is focused on making the optical network more agile, intelligent, and applicationaware. A passive optical network pon is an alloptical network that utilizes only passive optical components, e. This tutorial is divided into distinct chapters, which explains the structural features.
It was proposed as an extension of the planet acts project, developed in the late 90s with a split ratio of 2048 users over 100 km at 2. Some services pots, for example require essentially constant upstream. A passive optical network pon is an all optical network that utilizes only passive optical components, e. All the networks using optical fiber as transmission medium optical networks when transmitted signal remains in optical form till its arrival at destination alloptical network. Atutorialonopticalnetworks nc state computer science. This tutorial is divided into distinct chapters, which explains the structural features of. A rapid tunable optical transport network otn is designed to address these issues by delivering a transparent framework to efficiently carry diverse traffic types. This tutorial is divided into distinct chapters, which explains the structural features of optical fibers and their connections in networks. In a typical dense continental fog occurring in graz as example the attenuation is. The access network may be further divided between feeder plant or distribution network, and drop plant or edge network. Optical access networks connect multiple endpoints to a common network node via shared fibre infrastructure. This central section, made of silica or doped silica, is the light transmitting region of the fiber. This address is technically called the media access control address mac because it is found on the mac sub layer of the data link layer. Extended transparent reach due to power management per wdm channel.
Quantum secured gigabit optical access networks scientific. A passive optical network is a form of fiberoptic access network. Pdf a comparison study of passive optical networks pons and active optical networks aons had been presented. An olt is the service provider endpoint of a pon and is placed in a co or head end. Message input laser detector message output electrical input electrical. An odn realizes the optical transmission from the olt towards the users and vice versa.
Finally, optical networks may be passive or active. Apr 15, 2015 efficiency in these processes translate into lower cost layout and construction, more productive system migration and field operations, lower optical loss budget, and greater business. We also simplify optical networking with a unified management system and a resilient, multilayer control plane. Wireless access, wimax, optical wireless, satellite, passive optical networks overview. Optical line terminal optical network unit passive optical splitter pstn internet iptv onu onu pon is a kind of passive optical network featuring onetomultiplepoint architecture. Access points nodes for accessing and sending data to the ring. This document provides a tutorial for optical transport network standards and their applications. Following a summary of gigabit ethernet and passive optical network pon standards.
Dec 14, 2015 optical access networks connect multiple endpoints to a common network node via shared fibre infrastructure. A novel architecture is developed for bidirectional wireless and optical access network integrated with wdmpon with wavelength reuse in base stations. Wdm man in this architecture access points are connected in a ring topology. Gpon can transport not only ethernet, but also atm and tdm pstn, isdn, e1 and e3 traffic. Pon consists of optical line terminal olt, optical network unit onu and optical distribution networkodn. The traditional access fiber architecture has been the fiber remote, which is a highspeed fiber trunk sonet or ethernet that terminates in an electro optical multiplexer. Pdf evolution of optical access networks researchgate. In analog phone days, these were called digital loop carriers dlcs, and the term new generation dlc was used for a time, but most such devices today deliver dsl. Although our focus is on optical networks, for completeness we note that for the. It is commonly deployed in two specific configurations. They will play a vital role to scale up the number of users in quantum key distribution. The current thinking about ip over wdm by outlining a path to optical data networking, that includes multiple data networking protocol coupled with a protocolneutral optical networking infrastructure is challenged.
Olt optical line termination an olt is the service provider endpoint of a pon and is placed in a co or head end ont optical network termination an ont is a device that terminates the pon and presents native service interfaces to the user. The final element in optical networks is the wavelength converter, which converts an incoming signals wavelength to a different outgoing wavelength, entirely in the optical domain. Giving service providers the tools to reliably shift their operating model from configuring to programming brings a radical transformative opportunity with unparalleled intelligence and service agility. Broadband optical access network is an ideal solution to alleviate the firstlast mile bottleneck of current internet infrastructures. The objective is to provide the telecommunications engineers with a document that forms the basis for understanding otn. Optical access network how is optical access network abbreviated.
511 967 1169 604 405 1022 405 863 1337 261 948 461 1337 568 1609 16 329 678 168 516 621 969 74 339 846 546 179 1490 375 1005 724 700