OMUX: Optical Multicast and Unicast-capable interconnection network for data centers
Exponential growth of traffic and bandwidth demands in current data center networks requires low-latency high-throughput interconnection networks, considering power consumption. By considering growth of both multicast and unicast ...
Resource allocation mechanism for efficiency improvement in WDM networks: An analytical comparison study
This paper focuses on the performance improvement criteria suitable for WDM networks. Especially, an efficient resource allocation mechanism is introduced which organizes the number of data wavelengths into sets. Additionally, an ...
A constrained-lower-indexed-block spectrum assignment policy in elastic optical networks
Elastic Optical Networks have been the most promising technology in the next generation of transport networks due to their flexibility of spectrum assignment. Routing and spectrum assignment is one of their key issues. Several routing ...
Transport SDN at the dawn of the 5G era
This editorial introduces the topic area of this special issue, namely the area of Software Defined Networking (SDN) controlled optical transport networks, i.e., so-called transport SDN (T-SDN) networks, that support emerging fifth ...
Adaptive resource allocation in FSO/RF multiuser system with proportional fairness for UAV application
The combination of free space optic (FSO) and unmanned aerial vehicle (UAV) can be a promising solution to last-mile problem because of FSO high bandwidth and flexibility of UAV. However, FSO is vulnerable to the atmospheric turbulence ...
The dichotomy of distributed and centralized control: METRO-HAUL, when control planes collide for 5G networks
Automating the provisioning of 5G services, deployed over a heterogeneous infrastructure (in terms of domains, technologies, and management platforms), remains a complex task, yet driven by the constant need to provide end-to-end ...
A unifying approach to nonblocking Clos-like networks with k multiplexing levels
Many multiplexing technologies have been proposed to meet the need for high network capacity. One can foresee that transmission systems with many multiplexing levels will be used in telecommunication networks in the future, and the ...
Inter-core crosstalk aware greedy algorithm for spectrum and core assignment in space division multiplexed elastic optical networks
In elastic optical networks (EONs) employing weakly coupled single-mode multi-core fibers (MCFs), inter-core crosstalk (XT) can affect significantly the network performance, particularly when the number of cores and the path length ...
Highlights
- The IA-RSCA problem is decomposed into two sub-problems: the IA routing sub-problem and the IA-SCA sub-problem.
Special Section: Optimization of Wired and Wireless Optical Networks
Optimization of strict-sense nonblocking wavelength-space-wavelength elastic optical switching fabrics
The paper considers the optimization of strict-sense nonblocking three-stage wavelength-space-wavelength switching fabrics for elastic optical switching nodes. Strict-sense nonblocking conditions for such switching fabrics have ...
Optimization of wide-sense nonblocking elastic optical switches
This paper considers the optimization of wide-sense non-blocking wavelength-space-wavelength switching fabrics for elastic optical networks. Recently, wide-sense non-blocking conditions for two types of switching fabrics, named WSW1 ...
Energy-efficient optical switching nodes based on banyan-type switching fabrics
The paper shows the possibility to reduce energy consumption in banyan-type switching fabrics working under different control algorithms. This can be done by adopting the structure of switching fabric to the intensity of traffic ...
Dynamic scheduling in TWDM-PONs using game theory
Efficient utilization of Passive Optical Networks (PONs) within a broad region of high user numbers, heavy bandwidth demand and large-scale central servicing stations seems a challenging task in explosive high-bandwidth environments. ...
SNA Based Resource Optimization in Optical Network using Fog and Cloud Computing
Optical transmission has emerged as the most cost-effective technology to implement high-bandwidth based communications and to transmit the huge volume of data with low latency. Fog computing extends cloud computing to improve ...
Efficient polling cycle adaptive passive optical network for low-latency 5G fronthaul
Under the large and ubiquitous bandwidth requirements of the upcoming 5G era, new common public radio interface (CPRI) solutions (such as eCPRI) characterized by scale flexible, packet-based bandwidth reduction are receiving extensive ...
Non-full-available queueing model of an EON node
This paper presents a model of a queueing system with non-full-availability server and multi-service Bernoulli-Poisson-Pascal (BPP) traffic. This model is then used for an analysis of an Elastic Optical Network (EON) access node. The ...
De-multiplexing the required spectrum in a traffic demand into multiple non-adjacent granular spectrums for dynamic traffic grooming in EON
An elastic light-trail, the advanced version of a traditional light-trail, is one of the most recent dynamic traffic grooming technologies in an elastic optical network. In such networks, Orthogonal Frequency Division Multiplexing (...
Visible Light Communication transmitter position detection for use in ITS
This paper presents three major Visible Light Communication (VLC) transmitter LED detection techniques and proposes a new detection method based on the fusion of their outputs. Statistics of each detection technique are used to ...
Minimizing the driving power for Non Orthogonal Multiple Access in Indoor Visible Light Communication
Indoor Visible light Communication (VLC) systems use Light Emitting Diode (LED) luminaries for data transmission besides their main task as illumination devices. One of the challenges of VLC is minimizing the LED driving power without ...
Optimization of intensities and locations of diffuse spots in indoor optical wireless communications
In this paper, optimization of diffuse spots' parameters in indoor optical wireless communications (OWC) system is carried out by using the particle swarm optimization (PSO) algorithm. By simultaneously optimizing the diffusion spots' ...
Influence of simulated atmospheric effect combined with modulation formats on FSO systems
This article describes the possibility of using the Software Defined Radio (SDR) for modulation of the optical laser beam by advanced m-PSK and m-QAM modulations with regard to influence of simulated atmospheric effect, in our case ...
Experimental analysis of a triple-hop relay-assisted FSO system with turbulence
- Norhanis Aida Mohd Nor,
- Zabih Ghassemlooy,
- Stanislav Zvanovec,
- Mohammad-Ali Khalighi,
- Manav R. Bhatnagar,
- Jan Bohata,
- Matej Komanec
This paper outlines experimental investigation of the performance of the wireless optical network based on an all-optical triple-hop free space optical (FSO) communications employing amplify-and-forward relaying under the influence of ...
Digital all-optical Physical-layer Network Coding for 2Gbaud DQPSK signals in mm-wave radio-over-fiber networks
We propose the first digital All-Optical Physical-layer Network Coding (AOPNC) scheme for up to 2Gbaud Differential Quadrature Phase Shift Keyed – Sub-Carrier Modulated (DQPSK-SCM) signals in future Radio-over-Fiber (RoF) networks. The ...