Results 131 to 140 of about 618 (182)

OFDMA-based passive optical networks (PON)

2008 Digest of the IEEE/LEOS Summer Topical Meetings, 2008
We propose a PON architecture based on orthogonal frequency division multiple access (OFDMA) technologies. The system produces transparent pipes for transmission of heterogeneous services. A virtual PON scheme based on OFDMA is further introduced.
null Lei Xu, null Dayou Qian, null Junqiang Hu, null Wei Wei, null Ting Wang   +4 more
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Optical transceivers for passive optical networks (PON)

2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference, 2006
Optical transceivers used for the passive optical networks (PON) are bi-directional devices that use different wavelengths to transmit and receive signals between the optical line terminal (OLT) at the central office and the optical network units (ONUs) at the end users' premises over a single fiber.
openaire   +1 more source

Fault Discovery Protocol (FDP) for Passive Optical Networks (PONs)

2007 IEEE Symposium on Computers and Communications, 2007
Passive Optical Networks (PONs) are an attractive alternative to legacy copper based access lines, which still provide a number of services to customers despite their limited bandwidth and lack of future proof design. The recently growing volume of Ethernet PONs deployment [1], connected with low cost electronic and optical components used in the ONU ...
Marek Hajduczenia, Daniel Fonseca, Henrique J. A. da Silva, Paulo P. Monteiro   +3 more
openaire   +1 more source

Portable Network Monitoring System for Passive Optical Network (PON)

2009 International Conference on Computer Technology and Development, 2009
A real-time optical network monitoring system named Smart Access Network _ Testing, Analyzing and Database (SANTAD) that combined remote controlling, centralized monitoring and troubleshooting, fault detection, optical switching as well as protection and restoration features is introduced for delivering high quality of services (QoS) for passive ...
Boonchuan Ng, Mohammad Syuhaimi Ab-Rahman, Aswir Premadi, Kasmiran Jumari   +3 more
openaire   +1 more source

FBMC for directly modulated passive optical networks (PON)

2015 International Topical Meeting on Microwave Photonics (MWP), 2015
In this paper the transmission of FBMC based services for PON's using direct modulation of low-cost Discrete Mode lasers is studied. The FBMC system is composed of 21 overlapping subcarriers each modulated by 16-QAM. We experimentally study the performance of such a directly modulated FBMC system in back-to-back and fibre transmission scenarios up to ...
Arsalan Saljoghei, Fernando A. Gutierrez, Colm Browning, Liam P. Barry   +3 more
openaire   +1 more source

Modern Passive Optical Network (PON) Technologies

2009
Presently, not only the European Union (EU) but the global community faces a decisive priority to “redesign” its economy and society, in order to meet a variety of challenges imposed by the expansion of innovative technological features, in the scope of the new millennium.
Ioannis P. Chochliouros, Anastasia S. Spiliopoulou   +1 more
openaire   +1 more source

Lightwave measurement and characterization in passive optical network (PON)

2009 International Conference on Space Science and Communication, 2009
The objective of this study is to determine and troubleshoot the problems of using handheld optical power meter and optical time domain reflectometer (OTDR) for monitoring and troubleshooting a conventional passive optical network (PON) equipped with optical splitter/coupler that used to broadcast optical signals from one fiber to many fibers.
Ng Boon Chuan, Mohammad Syuhaimi Ab-Rahman   +1 more
openaire   +1 more source

Storage area network extension over passive optical networks (S-PONS)

IEEE Communications Magazine, 2008
After 9/11 and the accidental failure of the power grid in North America in 2003, storage area network (SAN) extension has emerged as critical to ensuring business continuity. However, SAN extension encounters challenges in the access network, including scalability problems, cost challenges, bandwidth bottlenecks and low throughput. In this article, we
Si Yin, Yuanqiu Luo, Lei Zong, Stephen Rago, Jianjun Yu, Nirwan Ansari, Ting Wang   +6 more
openaire   +1 more source

Optical OFDM for Next-Generation Passive Optical Networks (PON)

Advanced Photonics & Renewable Energy, 2010
Key principles, benefits, and advanced DSP technology requirements of Orthogonal Frequency Division Multiplexing (OFDM)-based passive optical networks (PON) are overviewed, revealing OFDM to be a strong next-generation candidate technology for this application domain.
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Survivability models for radio-over-fiber passive optical networks (RoF-PON)/PON

2011 seventh International Computer Engineering Conference (ICENCO'2011), 2011
In this paper, we will propose some models for PON/RoF-PON combines a number of ideas used before in the research papers, the ITU-U recommendations and also a number of novel models. We compare between those proposed models by using the Expected Survivability Function; a simple and intelligent tool to evaluate network survivability.
Khaled M. Maamoun, Hussein T. Mouftah
openaire   +1 more source