The loading-aware energy saving scheme for EPON networks Online publication date: Fri, 29-Nov-2019
by Chien-Ping Liu; Ho-Ting Wu; Kai-Wei Ke; Chia-Chih Chien
International Journal of Computational Science and Engineering (IJCSE), Vol. 20, No. 2, 2019
Abstract: This paper proposes an energy saving mechanism in Ethernet passive optical networks (EPONs) for the optical network unit (ONU). It measures traffic loading continuously to identify traffic load for each ONU, then classifies such load to either a low or high loading level. The scheme allows ONU to transmit packets only when the system stays in high load conditions, otherwise ONU changes to one of power saving modes. Therefore, ONU can accumulate queued packets in low-load scenario and stay in power saving mode for longer duration. However, in order to avoid long queueing delay of high priority packets, the ONU will not switch to power saving mode, if the queue of high priority packets is not empty. Comparing to a previous proposed tri-mode energy saving scheme which imposed strict restriction on ONU's staying in energy saving modes, the proposed scheme achieves energy saving improvement without suffering noticeable delay performance degradation.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Computational Science and Engineering (IJCSE):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook