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Optical Engineering

Energy-efficient orthogonal frequency division multiplexing-based passive optical network based on adaptive sleep-mode control and dynamic bandwidth allocation
Author(s): Chongfu Zhang; Nengwu Xiao; Chen Chen; Weicheng Yuan; Kun Qiu
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Paper Abstract

We propose an energy-efficient orthogonal frequency division multiplexing-based passive optical network (OFDM-PON) using adaptive sleep-mode control and dynamic bandwidth allocation. In this scheme, a bidirectional-centralized algorithm named the receiver and transmitter accurate sleep control and dynamic bandwidth allocation (RTASC-DBA), which has an overall bandwidth scheduling policy, is employed to enhance the energy efficiency of the OFDM-PON. The RTASC-DBA algorithm is used in an optical line terminal (OLT) to control the sleep mode of an optical network unit (ONU) sleep and guarantee the quality of service of different services of the OFDM-PON. The obtained results show that, by using the proposed scheme, the average power consumption of the ONU is reduced by ∼40% when the normalized ONU load is less than 80%, compared with the average power consumption without using the proposed scheme.

Paper Details

Date Published: 5 February 2016
PDF: 9 pages
Opt. Eng. 55(2) 026108 doi: 10.1117/1.OE.55.2.026108
Published in: Optical Engineering Volume 55, Issue 2
Show Author Affiliations
Chongfu Zhang, Univ. of Electronic Science and Technology of China (China)
Nengwu Xiao, Univ. of Electronic Science and Technology of China (China)
Chen Chen, Univ. of Electronic Science and Technology of China (China)
Nanyang Technological Univ. (Singapore)
Weicheng Yuan, Univ. of Electronic Science and Technology of China (China)
Kun Qiu, Univ. of Electronic Science and Technology of China (China)


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