Taking Turns with Adaptive Cycle Time: Decentralized Media Access for Long-Reach Passive Optical Networks - Softcover

Helmy, Ahmed

 
9783659164385: Taking Turns with Adaptive Cycle Time: Decentralized Media Access for Long-Reach Passive Optical Networks
Softcover
ISBN 10: 3659164380 ISBN 13: 9783659164385
Verlag: LAP LAMBERT Academic Publishing, 2012

Inhaltsangabe

The extended network spans of next generation long-reach passive optical networks (LR-PONs) result in extremely long propagation delays that severely degrade the performance of currently adopted upstream bandwidth-allocation algorithms. This is because these algorithms are based on bandwidth negotiation messages, frequently exchanged between the central office and distant network units, which become seriously delayed when the network is possibly extended to hundreds of kilometers. This book addresses this problem by proposing decentralized media access for these emerging networks, allowing the network units to communicate with each other and take turns accessing the upstream channel. This makes the upstream bandwidth-allocation performance independent of the network reach and enables sooner transmission of upstream packets. The book also reviews some of the major contributions in this field, and studies many challenges facing the decentralized scheme. Through extensive simulation, the performance of the decentralized scheme is evaluated in contrast with centralized schemes. In addition, various improvement approaches are explored and further research points are highlighted.

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Reseña del editor

The extended network spans of next generation long-reach passive optical networks (LR-PONs) result in extremely long propagation delays that severely degrade the performance of currently adopted upstream bandwidth-allocation algorithms. This is because these algorithms are based on bandwidth negotiation messages, frequently exchanged between the central office and distant network units, which become seriously delayed when the network is possibly extended to hundreds of kilometers. This book addresses this problem by proposing decentralized media access for these emerging networks, allowing the network units to communicate with each other and take turns accessing the upstream channel. This makes the upstream bandwidth-allocation performance independent of the network reach and enables sooner transmission of upstream packets. The book also reviews some of the major contributions in this field, and studies many challenges facing the decentralized scheme. Through extensive simulation, the performance of the decentralized scheme is evaluated in contrast with centralized schemes. In addition, various improvement approaches are explored and further research points are highlighted.

Biografía del autor

Ahmed H. Helmy received his B.Sc. in electrical engineering from BHIT, Egypt, in 2005, and his M.Sc. from KSU, Saudi Arabia, in 2012. As an assistant researcher, he participated in projects on next generation networks & systems. Currently, he has returned to the industry, working in research & development and in market & technology research.

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2012
Sprache
Englisch
ISBN 10 
3659164380
ISBN 13 
9783659164385
Einband
Tapa blanda
Anzahl der Seiten
168
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Verantwortliche Person
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