Coordination of wavelength and time-window assignment in WDM-based TDM hybrid-PONs

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In passive optical networks (PONs), the low effectiveness in terms of service utilization and network evolution have been important design issues. In this article, we introduce a hybrid access network architecture, so called scalable WDM-based Ethernet hybrid-PON (SWE-PON), which features a wavelength-division-multiplexed (WDM) feeder network using a combination of tunable laser device (TLD) and cyclic arrayed waveguide grating (AWG) and time-division-multiplexed (TDM) distribution network based on a reflective transmission mode. Necessary conditions needed to guarantee flawless packet transmission through normal WDM/TDM hierarchical PONs including the SWE-PON, are analyzed. We also propose a hierarchical fair time-window allocation mechanism which coordinates wavelength assignment and time-window bandwidth allocation so that high link utilization and fair bandwidth allocation are guaranteed in every multiplexing level.
Publisher
SPRINGER
Issue Date
2008-10
Language
English
Article Type
Article
Keywords

ETHERNET-PON; EPON

Citation

PHOTONIC NETWORK COMMUNICATIONS, v.16, no.2, pp.139 - 147

ISSN
1387-974X
DOI
10.1007/s11107-008-0125-2
URI
http://hdl.handle.net/10203/17771
Appears in Collection
EE-Journal Papers(저널논문)
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