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Proceedings Paper

An energy saving mechanism of EPON networks for real time video transmission
Author(s): Chien-Ping Liu; Ho-Ting Wu; Yun-Ting Chiang; Shieh-Chieh Chien; Kai-Wei Ke
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Paper Abstract

Modern access networks are constructed widely by passive optical networks (PONs) to meet the growing bandwidth demand. However, higher bandwidth means more energy consumption. To save energy, a few research works propose the dual-mode energy saving mechanism that allows the ONU to operate between active and sleep modes periodically. However, such dual-mode energy saving design may induce unnecessary power consumption or packet delay increase in the case where only downstream data exist for most of the time. In this paper, we propose a new tri-mode energy saving scheme for Ethernet PON (EPON). The new tri-mode energy saving design, combining the dual-mode saving mechanism with the doze mode, allows the ONU to switch among these three modes alternatively. In the doze mode, the ONU may receive downstream data while keeping its transmitter close. Such scenario is often observed for real time video downstream transmission. Furthermore, the low packet delay of high priority upstream data can be attained through the use of early wake-up mechanism employed in both energy saving modes. The energy saving and system efficiency can thus be achieved jointly while maintaining the differentiated QoS for data with various priorities. Performance results via simulation have demonstrated the effectiveness of such mechanism.

Paper Details

Date Published: 6 July 2015
PDF: 8 pages
Proc. SPIE 9631, Seventh International Conference on Digital Image Processing (ICDIP 2015), 96311X (6 July 2015); doi: 10.1117/12.2197015
Show Author Affiliations
Chien-Ping Liu, National Taipei Univ. of Technology (Taiwan)
Ho-Ting Wu, National Taipei Univ. of Technology (Taiwan)
Yun-Ting Chiang, National Taipei Univ. of Technology (Taiwan)
Shieh-Chieh Chien, National Taipei Univ. of Technology (Taiwan)
Kai-Wei Ke, National Taipei Univ. of Technology (Taiwan)

Published in SPIE Proceedings Vol. 9631:
Seventh International Conference on Digital Image Processing (ICDIP 2015)
Charles M. Falco; Xudong Jiang, Editor(s)

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