Abstract
This chapter will introduce and discuss important system-level challenges for software-defined networking (SDN) in fiber wireless networks, particularly in light of recent networking trends such as 5G mobile networks and the Internet of Things (IoT) paradigm. The presented discussion will cover vital aspects from both the control and data plane perspectives. In the data plane, recent fiber wireless trends surrounding the increasingly strong reliance of advanced mobile systems on fiber-optic networks and the emergence of cloud radio access network architectures with fiber-optic links to/from remote wireless cell sites will be covered in particular detail. Specifically, the high-speed, low-latency optical fronthaul architecture will be regarded as the baseline for future fiber wireless networks, and system-level challenges related to signaling formats, network densification and topology, and optical component selection will be considered. Moreover, the requirements for and ramifications of SDN-based control in fiber wireless networks will be examined. A survey of recent R&D advances in SDN for fiber wireless will also be presented. As potential solutions to important system-level challenges, efficient signaling across the optical network, flexibility in the selection of wavelength division multiplexing (WDM)-based optics components, and support for a dynamic physical-layer topology will be highlighted. In terms of network control and management, a centralized, programmable SDN-based control plane is regarded as an attractive approach to bring about a fiber wireless network evolution featuring automated, programmable end-to-end resource orchestration and ultimately a high quality-of-experience (QoE) for end users.
Keywords
- Wavelength Division Multiplex
- Optical Line Terminal
- Optical Network Unit
- Massive MIMO
- Optical Transport Network
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Cvijetic, N., Wang, T. (2017). Systems Challenges for SDN in Fiber Wireless Networks. In: Tornatore, M., Chang, GK., Ellinas, G. (eds) Fiber-Wireless Convergence in Next-Generation Communication Networks. Optical Networks. Springer, Cham. https://doi.org/10.1007/978-3-319-42822-2_7
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