Journal ArticleDOI
Emerging Optical Access Network Technologies for 5G Wireless [Invited]
Xiang Liu,Frank Effenberger +1 more
TLDR
Emerging optical access network technologies that aim to support 5G wireless with high capacity, low latency, and low cost and power per bit, such as 100 Gbit/s PON, will be reviewed.Abstract:
With the advancement of radio access networks, more and more mobile data content needs to be transported by optical networks. Mobile fronthaul is an important network segment that connects centralized baseband units (BBUs) with remote radio units in cloud radio access networks (C-RANs). It enables advanced wireless technologies such as coordinated multipoint and massive multiple-input multiple-output. Mobile backhaul, on the other hand, connects BBUs with core networks to transport the baseband data streams to their respective destinations. Optical access networks are well positioned to meet the first optical communication demands of C-RANs. To better address the stringent requirements of future generations of wireless networks, such as the fifth-generation (5G) wireless, optical access networks need to be improved and enhanced. In this paper, we review emerging optical access network technologies that aim to support 5G wireless with high capacity, low latency, and low cost and power per bit. Advances in high-capacity passive optical networks (PONs), such as 100 Gbit/s PON, will be reviewed. Among the topics discussed are advanced modulation and detection techniques, digital signal processing tailored for optical access networks, and efficient mobile fronthaul techniques. We also discuss the need for coordination between RAN and PON to simplify the overall network, reduce the network latency, and improve the network cost efficiency and power efficiency.read more
Citations
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Journal ArticleDOI
Ultra-Low Latency (ULL) Networks: The IEEE TSN and IETF DetNet Standards and Related 5G ULL Research
Ahmed Nasrallah,Akhilesh S. Thyagaturu,Ziyad Alharbi,Cuixiang Wang,Xing Shao,Martin Reisslein,Hesham Elbakoury +6 more
TL;DR: In this article, the authors provide an up-to-date comprehensive survey of the IEEE TSN and IETF DetNet standards and related research studies and identify the pitfalls and limitations of the existing standards and research studies.
Journal ArticleDOI
Graphene-Based Integrated Photonics For Next-Generation Datacom And Telecom
Marco Romagnoli,Vito Sorianello,Michele Midrio,Frank H. L. Koppens,Frank H. L. Koppens,Cedric Huyghebaert,Daniel Neumaier,Paola Galli,Wolfgang Templ,Antonio D'Errico,Andrea C. Ferrari +10 more
TL;DR: In this paper, the authors present a vision for grapheme-based integrated photonics and present a roadmap of the technological requirements to meet the demands of the datacom and telecom markets.
Journal ArticleDOI
Graphene-based integrated photonics for next-generation datacom and telecom
Marco Romagnoli,Vito Sorianello,Michele Midrio,Frank H. L. Koppens,Frank H. L. Koppens,Cedric Huyghebaert,Daniel Neumaier,Paola Galli,Wolfgang Templ,Antonio D'Errico,Andrea C. Ferrari +10 more
TL;DR: It is shown that graphene-based integrated photonics could enable ultrahigh spatial bandwidth density, low power consumption for board connectivity and connectivity between data centres, access networks and metropolitan, core, regional and long-haul optical communications.
Journal ArticleDOI
Passive Optical Networks for 5G Transport: Technology and Standards
Jun Shan Wey,Junwen Zhang +1 more
TL;DR: Key 5G wireless transport standards are reviewed, passive optical networks stand out as an attractive choice because of the point-to-multipoint topology, optical access technologies and standards development activities are discussed, and several state-of-the-art PON technologies are highlighted.
Journal ArticleDOI
Low-latency high-efficiency mobile fronthaul with TDM-PON (mobile-PON)
TL;DR: This paper proposes and numerically demonstrate a novel mobile fronthaul architecture based on functional split and time-division multiplexed (TDM) passive optical networks (PONs) with a unified mobile and PON scheduler known as Mobile-PON.
References
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Journal ArticleDOI
Massive MIMO for next generation wireless systems
TL;DR: While massive MIMO renders many traditional research problems irrelevant, it uncovers entirely new problems that urgently need attention: the challenge of making many low-cost low-precision components that work effectively together, acquisition and synchronization for newly joined terminals, the exploitation of extra degrees of freedom provided by the excess of service antennas, reducing internal power consumption to achieve total energy efficiency reductions, and finding new deployment scenarios.
Journal ArticleDOI
Five disruptive technology directions for 5G
TL;DR: In this article, the authors describe five technologies that could lead to both architectural and component disruptive design changes: device-centric architectures, millimeter wave, massive MIMO, smarter devices, and native support for machine-to-machine communications.
Journal ArticleDOI
Things You Should Know About Fronthaul
TL;DR: In this article, a review of the new fronthaul network segment that appears in centralized radio access network (C-RAN) architecture is presented under an operational, economic, and radio point of view.
Journal ArticleDOI
NG-PON2 Technology and Standards
TL;DR: In this paper, a tutorial overview of the latest generation of passive optical network (PON) technology standards nearing completion in ITU-T is provided, with the focus on the requirements from network operators that are driving the standards developments and the technology selection prior to standardization.
Journal ArticleDOI
Efficient Mobile Fronthaul via DSP-Based Channel Aggregation
TL;DR: DSP techniques for channel aggregation and deaggregation, frequency-domain windowing, adjacent channel leak age ratio reduction, and synchronous transmission of both the I/Q waveforms of wireless signals and the control words (CWs) used for control and management purposes are presented.