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Analysis of the Performances and Tolerances of the 2nd Generation Passive Optical Networks (NGPON2) for FTTH Systems

2014
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Release : 2014
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Book Synopsis Analysis of the Performances and Tolerances of the 2nd Generation Passive Optical Networks (NGPON2) for FTTH Systems by : Juan Camilo Velásquez Micolta

Download or read book Analysis of the Performances and Tolerances of the 2nd Generation Passive Optical Networks (NGPON2) for FTTH Systems written by Juan Camilo Velásquez Micolta. This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt: [ENGLISH] In a Fiber to the Home (FTTH) system, the fiber is connected until the household users. A passive optical network (PON) is a particular type of FTTH networks that uses P2MP (point-to-multipoint fiber premises) in which unpowered optical splitters are used to share part of the infrastructure enable a single optical fiber to serve multiple premises. The evolution of PON systems across the years can be associated with the evolution in multiplexing technologies. In the first years with the use of TDM the achieved upstream and downstream aggregate bandwidth was in the order of 155 Mbit/s until 10 GBit/s in XG-PON standard. But with the implementation of WDM the capacities have been increased significantly until get bandwidths of 250 GBit/s and 500 GBit/s using ud-WDM with coherent detection. This new standards use advanced modulation and codification formats. This project will evaluate the new international standard ITU-T G.989 for next generation optical fiber access to the home (FTTH) network operating at 4x 10GBit/s, that uses time multiplexing and dense wavelength multiplexing (TWDM). The key commercial devices for its implementation will be identified and modelled. Next, the access network will be built in a computer simulator, different tests will be run, and the system will be optimized. Tasks: · Study of the state of art of optical access networks comparing different technologies, devices, and architectures. · Analysis of the new international standard ITU-T G.989 to review the optical spectrum management, devices and subsystems proposed. · Use of VPI simulator in order to build an access network architecture and realize different tests, linking it with · MATLAB to analyze the achieved results. · Optimization of the network built.

Next-Generation FTTH Passive Optical Networks

2008-07-16 Technology & Engineering
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Release : 2008-07-16
Genre : Technology & Engineering
Kind : eBook
Book Rating : 706/5 ( reviews)

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Book Synopsis Next-Generation FTTH Passive Optical Networks by : Josep Prat

Download or read book Next-Generation FTTH Passive Optical Networks written by Josep Prat. This book was released on 2008-07-16. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-to-the-Home networks constitute a fundamental telecom segment with the required potential to match the huge capacity of transport networks with the new user communication demands. Huge investments in access network infrastructure are expected for the next decade, with many initiatives already launched around the globe recently, driven by the new broadband service demands and the necessity by operators to deploy a future-proof infrastructure in the field. Dense FTTH Passive Optical Networks (PONs) is a cost-efficient way to build fibre access, and international standards (G/E-PON) have been already launched, leading to new set of telecom products for mass deployment. However, these systems only make use of less than 1% of the optical bandwidth; thus, relevant research is taking place to maximize the capacity of these systems, with the latest opto-electronic technologies, demonstrating that the huge bandwidth available through the fibre access can be exploited in a cost-efficient and reliable manner. Next-Generation FTTH Passive Optical Networks gathers and analyzes the most relevant techniques developed recently on technologies for the next generation FTTH networks, trying to answer the question: what’s after G/E-PONs?

Gigabit-capable Passive Optical Networks

2012-03-13 Technology & Engineering
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Release : 2012-03-13
Genre : Technology & Engineering
Kind : eBook
Book Rating : 064/5 ( reviews)

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Book Synopsis Gigabit-capable Passive Optical Networks by : D. Hood

Download or read book Gigabit-capable Passive Optical Networks written by D. Hood. This book was released on 2012-03-13. Available in PDF, EPUB and Kindle. Book excerpt: Gigabit-capable passive optical networks (G-PON) have a large and increasing base of support among telecommunications operators around the world. Written by two of the experts in the field, this book explains G-PON in detail, both the original 2.5 Gb/s version and XG-PON, the 10 Gb/s second generation. The foundation established by this book is also invaluable in understanding NG2 (next-generation 2) G-PON, which is built upon a number of XG-PON systems on parallel wavelengths. As well as a history that clarifies the reasons for many of the existing features, the book looks at current and evolving technology and discusses some of the alternatives for future access networks.

Passive Optical Networks

2011-10-10 Technology & Engineering
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Release : 2011-10-10
Genre : Technology & Engineering
Kind : eBook
Book Rating : 451/5 ( reviews)

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Book Synopsis Passive Optical Networks by : Cedric F. Lam

Download or read book Passive Optical Networks written by Cedric F. Lam. This book was released on 2011-10-10. Available in PDF, EPUB and Kindle. Book excerpt: Passive optical network (PON) technologies have become an important broadband access technology as a result of the growing demand for bandwidth-hungry video-on-demand applications. Written by the leading researchers and industry experts in the field, Passive Optical Networks provides coherent coverage of networking technologies, fiber optic transmission technologies, as well as the electronics involved in PON system development. Features: An in-depth overview of PON technologies and the potential applications that they enable Comprehensive review of all major PON standards and architecture evolutions, as well as their pros and cons Balanced coverage of recent research findings with economic and engineering considerations Presents system issues of protocols, performance, management and protection Extensive references to standards and research materials for further studies This book provides an authoritative overview of PON technologies and system requirements and is ideal for engineers and managers in industry, university researchers, and graduate students. Balances treatment of the optical technologies with systems issues such as protocols, performance, management and protection Covers latest developments in WDM-PONS, protection switching, dynamic bandwidth allocation Practical coverage with a chapter on PON applications and deployment Case studies on implementing PONs

Ethernet passive optical networks performance optimization. An extensive comparative study for DBA algorithms

2021-09-01 Technology & Engineering
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Release : 2021-09-01
Genre : Technology & Engineering
Kind : eBook
Book Rating : 541/5 ( reviews)

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Book Synopsis Ethernet passive optical networks performance optimization. An extensive comparative study for DBA algorithms by : Mohamed Maher

Download or read book Ethernet passive optical networks performance optimization. An extensive comparative study for DBA algorithms written by Mohamed Maher. This book was released on 2021-09-01. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2021 in the subject Engineering - Communication Technology, grade: 3.3, , course: Optical Fibers, language: English, abstract: This thesis provides a detailed comparison and a classification study for a large number of DBA algorithms with respect to time delay and throughput as performance indicators. The study shows that IPACT WITH CBR, UDBA, IPACT with two stages and CPBA are the optimum DBA algorithms regarding both time delay and throughput at highly loaded scenarios. Dynamic bandwidth allocation in Ethernet passive optical networks (EPON) presents a key issue for providing efficient and fair utilization of the EPON upstream bandwidth while supporting the quality of service QoS requirements of different traffic classes. Rare literatures have addressed a qualitative and quantitative comparison of large numbers of DBA algorithms based on their performance indicators. These algorithms are enrolled in a parametric optimization process targeting performance enhancement at highly loaded scenarios this increasing upstream line rates, changing distance between the OLT (Optical Line Terminal) and ONU (Optical Network Unit), increasing size of an Ethernet packet and changing maximum cycle time to 1 ms and altering guard time value). This process reduces time delay around 3.5% for IPACT WITH CBR, 1.725% for UDBA, 1.167% for IPACT with two stages and (1.167% for CPBA. Also, the optimization increases the throughput by 1.3% for IPACT WITH CBR, 1.795% in UDBA, 2.5% for IPACT with two stages and 1.684% for CPBA.

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