A bit error rate analysis for TCP traffic over parallel free space photonics

Rodríguez-Colina, Enrique; Gil-Leyva, Diego; Marzo, J.L.; Ramos, Victor

doi:10.1007/s11235-013-9764-4

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…[4][5][6][7][8][9] FSO terminal is rigidly attached to some stiff and sturdy structure enough to avoid vibration due to weather or traffic, even though the installation requires labor and time. [10][11][12][13][14] Another drawback of conventional FSO is vulnerability to disturbance to aerial laser transmission. Transmission is interrupted in the moment when any obstacle happens to interfere a line-of-sight of the laser beam.…”

Section: Introductionmentioning

confidence: 99%

Initial alignment method for free space optics laser beam

Shimada

Tashiro

Izumi

et al. 2016

Jpn. J. Appl. Phys.

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The authors have newly proposed and constructed an active free space optics transmission system. It is equipped with a motor driven laser emitting mechanism and positioning photodiodes, and it transmits a collimated thin laser beam and accurately steers the laser beam direction. It is necessary to introduce the laser beam within sensible range of the receiver in advance of laser beam tracking control. This paper studies an estimation method of laser reaching point for initial laser beam alignment. Distributed photodiodes detect laser luminescence at respective position, and the optical axis of laser beam is analytically presumed based on the Gaussian beam optics. Computer simulation evaluates the accuracy of the proposed estimation methods, and results disclose that the methods help us to guide the laser beam to a distant receiver.

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Section: Introductionmentioning

confidence: 99%

Initial alignment method for free space optics laser beam

Shimada

Tashiro

Izumi

et al. 2016

Jpn. J. Appl. Phys.

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show abstract

Robust Lyapunov–Krasovskii based design for explicit control protocol against heterogeneous delays

Zhou

2017

Telecommun Syst

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Multi-objective multi-constrained QoS Routing in large-scale networks: A genetic algorithm approach

Quang

Sanner

Morin

et al. 2018

2018 International Conference on Smart Communications in Network Technologies (SaCoNeT)

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The growing need for a simplified management of network infrastructures has recently led to the emergence of software-defined networking (SDN), which enables a centralized path calculation. The diversification of services, as well as the need of rapid path deployment, raises, however, challenges in routing algorithms. Moreover, Quality of Service (QoS) requirements and conflicts between them pile up the complexity of the problem. An intuitive method is formulating the problem as an Integer Linear Programming and solving it by an approximation algorithm. This method tends to have a specific design and usually suffers from unacceptable computational delays to provide a sub-optimal solution. Genetic algorithms (GAs) are deemed as a promising solution to cope with highly complex optimization problems. However, the convergence speed and the quality of solutions should be addressed in order to fit into practical implementations. In this paper, we propose a genetic algorithm-based mechanism to address the multi-constrained multi-objective routing problem. Using a repairer to reduce the search space to feasible solutions, results confirm that the proposed mechanism is able to find the Pareto-optimal solutions within a short run-time.

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A bit error rate analysis for TCP traffic over parallel free space photonics

Cited by 3 publications

References 26 publications

Initial alignment method for free space optics laser beam

Initial alignment method for free space optics laser beam

Robust Lyapunov–Krasovskii based design for explicit control protocol against heterogeneous delays

Multi-objective multi-constrained QoS Routing in large-scale networks: A genetic algorithm approach

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