Green Wireless-Optical Broadband Access Network: Energy and Quality-of-Service Considerations

Abstract

Growing energy demands in the information and communication technology (ICT) sector have been recognized as a major challenge worldwide. Researchers have been actively working to address this challenge, and the major focus centers around improving the energy efficiency of access networks, which are known for consuming about three-quarters of the total network power. Among various access networks, the hybrid wireless-optical broadband access network (WOBAN), which combines a passive optical network (PON) with broadband wireless technology, is highly regarded for its enormous capacity, cost efficiency, and ease of deployment. To develop a green WOBAN, it is important to focus on reducing its power consumption, and in this work, we present an efficient resource management technique for WOBAN that reduces the power consumption of the optical line terminal (OLT) and optical network unit (ONU) by introducing sleep modes for the OLT and ONU, based on the service class and traffic load. Moreover, it considers the quality-of-service requirement of each service class. Simulation results confirm that our proposed solution can save a significant amount of power in the WOBAN network without sacrificing the quality of service of end applications.

Tackling Africa’s digital divide

“…Many novel solutions are being developed to specifically address issues with energy consumption [8]. One example is the passive optical network (PON), which is an ideal technology for achieving our green communication goals [9,10,11]. Combining technologies such as fibre and millimetre wave communications [12], or PON with wireless local area networks [13] brings the potential to further lower power consumption.…”

Methodology and Software Tool for Energy Consumption Evaluation and Optimization in Multilayer Transport Optical Networks

“…In addition, an increase in these voltages leads to a shortening of the reliable life of the devices. It is forcing the search and development of new methods, criteria, elements and devices of the network to provide its required operating parameters, with low capital and operating costs for the operator and high quality of service (QoS) for subscribers [16][17][18]. Network equipment designers pay great attention to the energy efficiency of systems, as this factor has a significant impact on the cost of their operation and often determines the choice of specific equipment [19].…”

The Application of Wireless Broadband Communication for Smart Power Distribution and Utilization Networks

“…Therefore, it is very necessary to employ the wireless broadband communication technologies to support the communication in the power distribution and utilization networks. Usually, according to the requirements of smart power distribution and utilization businesses, we divide the electric users into four types: category A: specifically large user, such as the large industrial factories; category B medium user, such as normally factories; category C: general industrial and commercial users; category D: single-phase general industrial and commercial users; category E and F usually are residential users assess public distribution transformer metering point as shown in Moreover, the wireless broadband communication also deployed in power distribution automation for collecting information from the switching stations, substations, ring counter, pole-mounted transformer and switches and other equipment using DL /T6345-101 and a remote loop protocol [3].…”