Abstract
The primary design goal of (r)evolutionary NG-PON1&2 was the provisioning of an ever increasing capacity to cope with video-dominated traffic and handle the explosion of mobile data traffic by means of offloading. Recently, however, questions on the future of “post NG-PON2” have surfaced whether to shift its research focus to business and operation related aspects and move access technology into a substantially different direction than continued capacity upgrades. In fact, recent studies indicate that ultimately the major factor limiting the performance of 4G mobile networks is latency rather than capacity of the backhaul. In this paper, we review recently proposed low-latency techniques for NG-PONs that require architectural modifications at the remote node or distribution fiber level and highlight advanced network coding and real-time polling based low-latency techniques that can be implemented in software, enable NG-PONs to carry higher traffic loads and thereby extend their lifetime, and maintain the passive nature of existent optical distribution networks. Furthermore, we elaborate on emerging trends and open challenges for future post NG-PON2 research. To better understand their true potential, we put them into a wider non-technical and historical perspective leading up to a sustainable Third Industrial Revolution (TIR) economy and its underlying Energy Internet.
Highlights
Passive optical network (PON) research and technology have matured over the last three decades and have established PONs as a cornerstone of today’s deep fiber access solutions [1]
We argue that next-generation PON (NG-PON) and FiWi access networks will represent a cornerstone of future broadband installations and explore ways of how they can be deployed across relevant economic sectors other than telecommunications per se
Beside explaining the role of NG-PON1&2 and beyond in realizing high-capacity and low-latency mobile backhaul infrastructures, we elaborated on the implications of the current global crisis and historical recurrence of once-in-a-half-century recessions as turning points, where the benefits of bimodal FiWi networking technologies may be fully realized across the entire economy, thereby offering a vast innovation and growth potential across multiple economic sectors and ushering in a sustainable global golden age
Summary
Passive optical network (PON) research and technology have matured over the last three decades and have established PONs as a cornerstone of today’s deep fiber access solutions [1]. This is the time for states to come back actively to change the focus from the stock market indices to the job-creating expansion of the real economy and increase in social wellbeing and to take convergent and synergistic actions that will lead markets and society to the golden age, or deployment period, where the benefits of new technologies are fully realized across the entire economy, thereby offering a vast innovation and growth potential across multiple economic sectors.
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