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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 2 — Feb. 1, 2012
  • pp: 99–107

Generic QoS-Aware Interleaved Dynamic Bandwidth Allocation in Scalable EPONs

I-Shyan Hwang, Jhong-Yue Lee, K. Robert Lai, and Andrew Tanny Liem  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 4, Issue 2, pp. 99-107 (2012)
http://dx.doi.org/10.1364/JOCN.4.000099


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Abstract

The Ethernet passive optical network is being regarded as one of the best solutions for next-generation optical access solutions. In time-division multiplexing–passive optical network technology (TDM–PON), the dynamic bandwidth allocation (DBA) plays a crucial role in efficiently and fairly allocating the bandwidth between all users. Moreover, the quality of service (QoS) is also an essential requirement to support triple-play services. However, many proposed DBA mechanisms are still unable to solve the idle period problem and enhance the differentiated services (DiffServ), which will decrease the quality of overall system performance. Therefore, this paper proposes a generic QoS-aware interleaved dynamic bandwidth allocation (QA-IDBA). The QA-IDBA can operate adaptively bi-partitioned interleaved scheduling with QoS-based predictive limit bandwidth allocation (QP-LBA) and excess bandwidth reallocation (EBR) with the remaining bandwidth compensation scheme to eliminate the idle period, enhance QoS, and effectively reduce high-priority traffic delay and jitter. We conduct detailed simulation experiments with 16 and 32 optical network units (ONUs) to show the scalability. Simulation results show that our proposed algorithms can accommodate the growth of ONUs and achieve better overall quality of system performance even if the high-priority traffic is increasing from 20%, 40%, and 60%.

© 2012 OSA

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(060.1155) Fiber optics and optical communications : All-optical networks

ToC Category:
Research Papers

History
Original Manuscript: August 18, 2011
Revised Manuscript: December 8, 2011
Manuscript Accepted: December 12, 2011
Published: January 16, 2012

Citation
I-Shyan Hwang, Jhong-Yue Lee, K. Robert Lai, and Andrew Tanny Liem, "Generic QoS-Aware Interleaved Dynamic Bandwidth Allocation in Scalable EPONs," J. Opt. Commun. Netw. 4, 99-107 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-2-99

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