Abstract
Wireless-optical broadband access network (WOBAN) is regarded as a promising
broadband access network technology for meeting the challenges of the exponential
increase in Internet traffic. WOBAN combines the reliability and capacity of the passive
optical network (PON) with the ubiquity and mobility of the wireless network to cost
efficiently deliver services to the end user. In common with other next generation
communication networks, WOBAN faces the challenge of delivering very high data rates
without sacrificing the quality of service (QoS) and energy efficiency. In this paper,
we propose a new resource management technique for improving the energy efficiency of
the integrated optical-wireless unit in WOBAN. The concept is based on increasing the
idle time of the wireless and optical parts without sacrificing the QoS of end
applications, and exploiting idle durations to enable sleep, which ultimately boosts
power savings. We use the interoperability for resource management in the wireless and
optical parts to maintain the QoS. Our results reveal that extending the idle time and
making the resource management in both optical and wireless adapt to the daily traffic
fluctuations guarantee the QoS requirements for different traffic and boost energy
savings in WOBAN.
© 2016 IEEE
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