Evaluation of the bit error rate and Q-factor in optical networks

Ivaniga, Tomáš; Ivaniga, Petr

doi:10.9790/2834-09610103

Cited by 16 publications

(7 citation statements)

References 1 publication

(1 reference statement)

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“…where σ 0,1 and I 0,1 indicate, respectively, half width at half maximum (HWHM) and maximum peak of the Gaussian distribution of the current based on the value of optical power on the photodetector for level 0 and 1 [24], [25]. Moreover, (3) permits one to calculate the optical bit error rate (BER) of the VLC [26]…”

Section: Resultsmentioning

confidence: 99%

Improvements of Organic Photodetectors for VLC Using a New Active Layer, Focal Lens, and a Transimpedance Amplifier

Corral

Rodríguez-Mas

Scals

et al. 2022

ELEKTRON ELEKTROTECH

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Beyond 5G networks, and for short distance but high-speed communication systems, there is an incipient growing interest in visible light communications (VLC). Furthermore, it is an interesting alternative within the framework of the Internet of Things (IoT). However, there is a problem on the part of the receiver in these systems, motivated by the non-existence of photovoltaic elements used particularly for this purpose. Because of their simplicity and small investment, organic-type photodetectors have a high capacity for use in VLC systems. With a structure of polymers represented by an organic photodetector fabricated with poly (3-hexylthiophene) (P3HT) and a bulk heterojunction active layer of phenyl-C61-butyric acid methyl ester (PCBM) and commercial LEDs, we show our system in this paper. The main novelty of this work is in reception. With different upgrade using a new active layer or adding a focal lens or inserting a transimpedance amplifier, we have achieved improved performance results related to voltage and distance, with an increase of more than 40 %, and Bit Error Rate (BER) by modifying the active layer concentration with respect to results obtained in a former work. Also, we have tested the use of a transimpedance amplifier to obtain the best results in distances of 12 cm to 20 cm and a focal lens with the same objective of improving the BER in critical environments, where the Signal-to-Noise Ratio (SNR) is close to zero. To conclude, these modifications show that it is possible to increase the main parameters of our system to be useful in VLC systems.

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Section: Resultsmentioning

confidence: 99%

Improvements of Organic Photodetectors for VLC Using a New Active Layer, Focal Lens, and a Transimpedance Amplifier

Corral

Rodríguez-Mas

Scals

et al. 2022

ELEKTRON ELEKTROTECH

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“…It is denoted by Q and it is a dimensionless quantity. It is expressed as Signal-to-Noise Ratio [8]. OSNR = 10log …”

Section: Resultsmentioning

confidence: 99%

Comparative Analysis of Dispersion Compensating Fiber (DCF) and Optical Phase Conjugation (OPC) used for Dispersion Compensation

Asiwal¹,

Dhawan²

2017

International Journal of Innovative Research in Electrical, Ele

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Abstract:Various techniques are used for the dispersion compensation of the fiber and two of them are Dispersion Compensating Fiber (DCF) and Optical Phase Conjugation (OPC). In this paper the performance of the system is analyzed by comparing various results at the receiver. A 10Gb/s NRZ signal is launched onto a 100 km long Single Mode Fiber (SMF). Then fiber length is increased by increasing number of fiber spans. The length is varied up to 500 km. Results in the terms of eye diagram, BER, Q-factor are shown and it can be seen that results of a system which consist of OPC are enhanced because of proper dispersion compensation.

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“…Corrupted packets can be defined as packets that have one or more bits in errors. Bit error rate (BER) refers to the ratio of number of bits received in error to the total number of bits received in the specific time as in [12] and shown in 1 as follows.…”

Section: Methodsmentioning

confidence: 99%

Corrupted packets discarding mechanism to alleviate congestion in wireless body area network

Abdullah

Yaakob

Ahmad

et al. 2019

IJEECS

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<span>Generation of high traffic from continuous sensing and collection of medical data from various biosensors on multiple body is most likely to occur in the Wireless Body Area Network (WBAN). This could be a factor to the congestion in the network. Occurrence of congestion would collapse the performances in the WBAN network in terms of increment in delay, high packets loss, reduction in throughput and packet deliver ratio (PDR). The crucial concerns in WBAN are prevention from the loss of critical data and longer delay in the network as they could result to late delivery of medical treatment and possibility of the increase in mortality. Therefore, this study proposes a mechanism to alleviate the congestion from happening in the first place through discarding the corrupted packets before the beginning of data transmission to the base station. Extensive simulations are done in OMNeT+ to analyze the performance of the proposed mechanism by varying traffic from low to high under different number of nodes and constant Bit Error Rate (BER) and packet size. From the finding, it can be concluded that the proposed mechanism shows better performances in terms of low delay and packet loss as well as high throughput and PDR compared to typical WBAN.</span>

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Evaluation of the bit error rate and Q-factor in optical networks

Cited by 16 publications

References 1 publication

Improvements of Organic Photodetectors for VLC Using a New Active Layer, Focal Lens, and a Transimpedance Amplifier

Improvements of Organic Photodetectors for VLC Using a New Active Layer, Focal Lens, and a Transimpedance Amplifier

Comparative Analysis of Dispersion Compensating Fiber (DCF) and Optical Phase Conjugation (OPC) used for Dispersion Compensation

Corrupted packets discarding mechanism to alleviate congestion in wireless body area network

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