Theoretical analysis of optical pulse position modulation communication systems using semiconductor lasers

1991 ◽  
Vol 23 (8) ◽  
pp. 1077-1089 ◽  
Author(s):  
G. Aureli ◽  
S. Betti ◽  
G. De Marchis ◽  
E. Iannone ◽  
A. Mecozzi
Keyword(s):  
Theoretical Analysis ◽  
Semiconductor Lasers ◽  
Communication Systems ◽  
Optical Pulse ◽  
Pulse Position Modulation

scholarly journals NOISE STABILITY OF SIGNAL RECEPTION ALGORITHMS WITH MULTIPULSE PULSE-POSITION MODULATION

2018 ◽  
Vol 42 (1) ◽  
pp. 167-174 ◽  
Author(s):  
V. I. Parfenov ◽  
D. Y. Golovanov
Keyword(s):  
Communication Systems ◽  
Pulse Sequence ◽  
Signal To Noise Ratio ◽  
Point Of View ◽  
Estimation Accuracy ◽  
Pulse Position Modulation ◽  
Signal To Noise ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Noise Ratio

An algorithm for estimating time positions and amplitudes of a periodic pulse sequence from a small number of samples was proposed. The number of these samples was determined only by the number of pulses. The performance of this algorithm was considered on the assumption that the spectrum of the original signal is limited with an ideal low-pass filter or the Nyquist filter, and conditions for the conversion from one filter to the other were determined. The efficiency of the proposed algorithm was investigated through analyzing in which way the dispersion of estimates of time positions and amplitudes depends on the signal-to-noise ratio and on the number of pulses in the sequence. It was shown that, from this point of view, the efficiency of the algorithm decreases with increasing number of sequence pulses. Besides, the efficiency of the proposed algorithm decreases with decreasing signal-to-noise ratio.It was found that, unlike the classical maximum likelihood algorithm, the proposed algorithm does not require a search for the maximum of a multivariable function, meanwhile characteristics of the estimates are practically the same for both these methods. Also, it was shown that the estimation accuracy of the proposed algorithm can be increased by an insignificant increase in the number of signal samples.The results obtained may be used in the practical design of laser communication systems, in which the multipulse pulse-position modulation is used for message transmission. 

scholarly journals Spherical Dielectric Resonator Antenna for 5G Application

2021 ◽  
Author(s):  
Ashok kumar ◽  
Rajveer Singh Yaduvanshi
Keyword(s):  
Wireless Networks ◽  
Wireless Communication ◽  
Theoretical Analysis ◽  
Dielectric Resonator ◽  
Communication Systems ◽  
Return Loss ◽  
Wireless Communication Systems ◽  
Dielectric Resonator Antenna ◽  
Good Match ◽  
Good For

Abstract In this article Spherical DRA has been formulated , simulated and proto type developed. The detailed theoretical analysis along with simulations and measured results at 5.8 GHz have been presented in this article. The SDRA at 5.8 GHz covering 5G frewuenci band. The proposed design antenna provides the gain of 7.3 dB and return loss -25 dB. The measured results are in good match with simulated result. The proposed SDRA are good for 5G wireless networks, as well as other sub-6 band in wireless communication systems.

Recovery Technique for Asynchronous Clock Delay Sampling Data Based on Optical Pulse Position Modulation

2017 ◽  
Vol 54 (12) ◽  
pp. 120602
Author(s):  
向劲松 Xiang Jinsong ◽  
陈雪莉 Chen Xueli ◽  
贾元明 Jia Yuanming ◽  
张培 Zhang Pei
Keyword(s):  
Optical Pulse ◽  
Pulse Position Modulation ◽  
Recovery Technique

USE OF SEMICONDUCTOR LASERS IN COMPACT COMMUNICATION SYSTEMS

1972 ◽  
Vol 2 (3) ◽  
pp. 286-287
Author(s):  
M N Zargar'yants ◽  
A A Zborovskii ◽  
V I Kreopalov ◽  
L N Kurbatov ◽  
F D Shlyak
Keyword(s):  
Semiconductor Lasers ◽  
Communication Systems
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