In the short-to midterm, current state-of-the-art very high bit-rate DSL VDSL may be superseded by next-generation copper based solutions supported by deep fiber access networks getting increasingly closer networkw subscribers. This trend is expected to become even more pronounced over the next couple of decades. Figure 1 a shows the fixed wired and wireless access technologies used by broadband subscribers in However, this situation is changing rapidly.Ĭlearly, this figure illustrates that an increasing percentage of broadband subscribers rely on fiber access technologies at the expense of legacy Challenyes solutions. Furthermore, broadband increases competitiveness and flexibility in the economy by the increased diffusion of information at lower cost and by improving market access to increasingly larger markets. In a detailed study carried out by the Organisation for Economic Cooperation and Development OECD it was shown that the impact of providing residential and business subscribers with broadband fiwii is manifold.Īmong others, broadband enables the emergence of fiber-wigeless models, processes, and inventions as well as improved goods and services. Given that most 4G cellular mobile network researches so far have been focusing on the achievable performance gains in the wireless front-end only without looking into the details of backhaul implementations and possible backhaul bottlenecks, we identify open key research challenges for FiWi broadband access networks.Īccording to the Federal Communications Commission FCCbroadband enables individuals and enterprises to access a wide range of resources, services, and products related to education, culture, entertainment, telemedicine, e-commerce, public safety, and homeland security. Furthermore, we discuss service, application, business, and operation related aspects, which motivate access technology to move into a substantially different direction in the long run than continued capacity provisioning. This is an open access article distributed under the Creative Commons Attribution Licensewhich permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. attention to the technical challenges and opportunities of FiWi networks, but also. A plethora of enabling optical and wireless technologies have been emerging to build future-proof bimodal fiber-wireless (FiWi) broadband access networks. This article highlights key enabling optical as well as wireless technologies and explains Fiber-wireless (FiWi) access networks: Challenges and opportunities.
Fiber-wireless (FiWi) access networks: Challenges and opportunities, Article.
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