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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 5, Iss. 7 — Jul. 1, 2013
  • pp: 802–812

Dynamic Bandwidth Allocation Algorithm With Proper Guard Time Management Over Multi-OLT PON-Based Hybrid FTTH and Wireless Sensor Networks

Monir Hossen and Masanori Hanawa  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 5, Issue 7, pp. 802-812 (2013)

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A passive optical network (PON) is a highly capable access network that effectively converges several service providers, without suffering from any bandwidth deficiency. However, a PON consisting of a single optical line terminal (OLT) for multiple service providers increases the computational complexity for data packet processing in the OLT, resulting in a longer time delay and more packet loss. A multi-OLT PON-based access network is an effective solution for reducing the computational complexity of data packet processing in a hybrid network of multiple service providers. The most important issue concerning the multi-OLT PON is the sharing efficiency of upstream channels among multiple service providers having different packet lengths and data rates. In this paper, we propose a dynamic bandwidth allocation algorithm called adaptive limited dynamic bandwidth allocation for multi-OLT PON (ALDBAM). The proposed scheme is a modified version of adaptive limited dynamic bandwidth allocation (ALDBA) algorithms that we proposed before, where both the ALDBA1 and ALDBA2 schemes are combined with proper guard time management and a modified multipoint control protocol. The simulation results show that the ALDBAM scheme provides lower packet delay with higher bandwidth utilization, higher upstream efficiency, and higher throughput than the conventional ALDBA1 and ALDBA2 schemes.

© 2013 Optical Society of America

OCIS Codes
(060.4251) Fiber optics and optical communications : Networks, assignment and routing algorithms
(060.4254) Fiber optics and optical communications : Networks, combinatorial network design

ToC Category:
Research Papers

Original Manuscript: January 7, 2013
Revised Manuscript: April 18, 2013
Manuscript Accepted: May 22, 2013
Published: July 1, 2013

Monir Hossen and Masanori Hanawa, "Dynamic Bandwidth Allocation Algorithm With Proper Guard Time Management Over Multi-OLT PON-Based Hybrid FTTH and Wireless Sensor Networks," J. Opt. Commun. Netw. 5, 802-812 (2013)

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