The Escape of Sisyphus or What -Post NG-PON2- Should Do Apart from Neverending Capacity UpgradesReport as inadecuate




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Optical Zeitgeist Laboratory, INRS 800 Gauchetière West, suite 6900, Montréal, QC H5A 1K6, Canada





Abstract The primary design goal of revolutionary NG-PON1and2 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. View Full-Text

Keywords: Energy Internet; golden age prosperities; low carbon society; mobile backhaul; network coding; NG-PON; offloading; real-time polling; smart grid; Third Industrial Revolution TIR Energy Internet; golden age prosperities; low carbon society; mobile backhaul; network coding; NG-PON; offloading; real-time polling; smart grid; Third Industrial Revolution TIR





Author: Martin Maier

Source: http://mdpi.com/



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