What is it about?

Communication networks take a big portion of global energy consumption. Beside high-speed rates, any service support and providing guaranteed Quality-of-Service, access networks need to be energy efficient in order to minimize carbon footprint. Passive optical networks are currently a most promising access network technology and currently there is space for improving Dynamic Bandwidth Allocation (DBA) algorithm and achieving better optical fiber utilization while total electrical energy consumption can be reduced. We present new online DBA algorithm and its energy-saving capabilities.

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Why is it important?

This paper explain how is possible to reduce end-user network equipment power consumption while guaranteed Quality-of-Service is fulfilled. In comparison with ordinary DBA algorithms, usage of Online DBA Algorithm with Adaptive Sleep Cycle can reduce up to 90% of electrical energy per Optical Network Unit (ONU), i.e. end-user.

Perspectives

There was a lot of job about simulating access network. We tried hard to represent lot of popular internet services (like IPTV, Video streaming, Broadband internet access, VoIP...) in order to get precise image of current electric power consumption of EPON network equipment. After that, we simulated new Dynamic Bandwidth Allocation algorithm for collecting data about potential energy savings. We hope that readers, colleagues and researches get new ideas based on our work or use parts of our algorithm to achieve better wavelength bandwidth utilization and more energy savings in their projects.

Bojan Pajcin
Univerzitet u Beogradu

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This page is a summary of: Analysis of Online DBA Algorithm with Adaptive Sleep Cycle in WDM EPON, Fiber & Integrated Optics, April 2018, Taylor & Francis,
DOI: 10.1080/01468030.2018.1455928.
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