‪Haider.Jabber. Abd. Nasar‬

• Phd
• Professor at Al-Mustaqbal University

اختبار كهربائية القلب

Nonlinearities in optical fibers are regarded as the most significant barriers that endanger the effectiveness of the optical transmission system and pose a threat to communication quality. Four-wave mixing (FWM) is one of the most important nonlinear effects that greatly reduces the wavelength-division multiplexing (WDM) system performance at high...

Rapid development of 5G networks encourages researchers to improve the radio-over-fiber (RoF) technique in order to reach 10 Gbps data transmission rates, to increase bandwidth and range, while reducing latency and implementation cost. This paper evaluates an analog radio-over-fiber (ARoF) technique that is compatible with long-distance communicati...

دور تقنيات الاتصالات المتقدمة في تعزيز التنمية المستدامة بالمناطق النائيه

استخدام الطاقة الشمسية لدعم أنظمة الاتصالات نحو تحقيق التنمية المستدامة في المناطق النائية

استخدام الطاقة الشمسية لدعم أنظمة الاتصالات نحو تحقيق التنمية المستدامة في المناطق النائية

haider.jabber@uomus.edu.iq : ‫الخالصة‬ ‫كهرب‬ ‫مخطط‬ ‫ائ‬ ‫الملب‬ ‫ٌة‬ (ECG) ‫الكهربائً‬ ‫النشاط‬ ‫تسجل‬ ‫طرٌمة‬ ‫هو‬ ‫للملب‬ ‫ٌتم‬ ‫الولت.‬ ‫مرور‬ ‫مع‬ ‫عضلة‬ ‫ألٌاف‬ ‫استمطاب‬ ‫وإعادة‬ ‫االستمطاب‬ ‫إزالة‬ ‫أثناء‬ ‫الكهربائً‬ ‫الجهد‬ ‫فرق‬ ‫فً‬ ‫التغٌرات‬ ‫تسجٌل‬ ‫اال‬ ‫وعلى‬ ‫الصدر‬ ‫سطح‬ ‫على‬ ‫موضوعة‬ ‫كهربائٌة‬ ‫ألطاب‬ ‫بواسطة‬ ‫الملب‬ ‫طر‬ ‫ا...

haider.jabber@uomus.edu.iq : ‫الخالصة‬ ‫كهرب‬ ‫مخطط‬ ‫ائ‬ ‫الملب‬ ‫ٌة‬ (ECG) ‫الكهربائً‬ ‫النشاط‬ ‫تسجل‬ ‫طرٌمة‬ ‫هو‬ ‫للملب‬ ‫ٌتم‬ ‫الولت.‬ ‫مرور‬ ‫مع‬ ‫عضلة‬ ‫ألٌاف‬ ‫استمطاب‬ ‫وإعادة‬ ‫االستمطاب‬ ‫إزالة‬ ‫أثناء‬ ‫الكهربائً‬ ‫الجهد‬ ‫فرق‬ ‫فً‬ ‫التغٌرات‬ ‫تسجٌل‬ ‫اال‬ ‫وعلى‬ ‫الصدر‬ ‫سطح‬ ‫على‬ ‫موضوعة‬ ‫كهربائٌة‬ ‫ألطاب‬ ‫بواسطة‬ ‫الملب‬ ‫طر‬ ‫ا...

In this work, photonic crystal waveguides are studied and examined to perform high-frequency filtering and mode-splitting functions in optical networks. The waveguides are modeled numerically and their behavior is analyzed using the finite element method. The parametric sweep optimization method is used to calculate the design parameters. The resul...

In recent years, there has been a notable uptick in the exploration of underwater optical wireless communications (UOWC) as a viable alternative for efficient high-speed data transmission beneath the sea. This technology employs optical wavelengths in dedicated point-to-point connections, sharing similarities with free space optical (FSO) communica...

Light fidelity (LiFi) is one of the most promising areas within wireless optical communication system. It provides many benefits, including high capacity, improved security and enhanced cost-effectiveness. However, there is still challenges which are link blockages, attenuation, interference and bandwidth restriction of modulation techniques. Ortho...

Face recognition is considered the main physiological and behavioral biometrics due to the following advantages; simplicity of the face capturing, feature uniqueness and distinctness, and availability of the image acquisition devices. In this paper, a new approach to face recognition system (FRS) utilizing the Two-Dimensional Discrete Multi-Wavelet...

The automatic categorization of power quality disturbances (PQDs) presents a formidable task for utility and industry professionals. This study introduces a novel technique for the automatic classification of PQDs that involves employing an ensemble classification model combined with Tunable-Q wavelet transform (TQWT) analysis. The TQWT has been ob...

Radio over Fiber (RoF) technology refers to the transmission of a Radio Frequency (RF) signal across a fiber optic cable after the light signal has been modified with the RF signal. A wireless transmitting network based on the RoF technology has been projected as a low-cost, highly reliable solution for meeting the ever-growing user bandwidth, and...

Heartbeat sounds serve as biological signals that aid in the early identification of cardiovascular conditions. Phonocardiograms (PCG), which are recordings of digital heartbeat sounds, are employed for the identification and automated categorization of potential heart ailments. This research presents a technique for categorizing heart sounds by co...

The heart’s electrical activity is registered by an electrocardiogram (ECG), which consists of a wealth of pathological data on heart diseases such as arrhythmia. However, with increasing complexity and nonlinearity, direct observation of ECG signals and analysis is very tough. The highest accuracy of classification performance for machine learning...

The amplitude phase shift keying (APSK) employs as an efficient digital modulation scheme in modern satellite communication. Many researchers, in the field of automatic modulation recognition, entice to the automatic modulation of APSK signals. This paper exhibits a new algorithm based on machine learning, for APSK modulation recognition, using wav...

Underwater optical wireless communications (UOWC) have gained a considerable interest during the last years as an alternative means for broadband inexpensive submarine communications. UOWC present numerous similarities compared to free space optical (FSO) communications or laser satellite links mainly due to the fact that they employ optical wavele...

The heating, ventilating and air conditioning (HVAC) systems energy demand can be reduced by manipulating indoor conditions within the comfort range, which relates to control performance and, simultaneously, achieves peak load shifting toward off-peak hours. Reinforcement learning (RL) is considered a promising technique to solve this problem witho...

To meet the growing needs of internet data, optical communication systems have become the backbone of modern communications networks. At the present time, the dense wavelength division multiplexing (DWDM) technique has been used to increase the number of channels, but the nonlinear effects have a great impact that limits the performance of doubling...

In the applications of millimeter and sub-millimeter wave, the conductivity of metal parts in electronic devices can easily degrade when conventional metals like copper are employed. Furthermore, oxidation may arise when such devices are utilized in severe environmental conditions. To avoid this, conventional conductors such as copper can be coated...

An optical code division multiple access (OCDMA) technique generates a harmonic way to accommodate several multi-users over the Time Division Multiplexing (TDM) and Wavelength Division Multiplexing (WDM) via its ability of a several arrival scheme. The categories of OCDMA coding investigated and classified for different types, according to the mult...

One of the most detrimental effects of an optical communication network that can strongly restrict the bit rate and thus reduce the transmission performance is the nonlinear effect. In this work, the effect of the optimized pulse on the optical transmission system with different dispersion maps i.e. post, pre, and symmetric dispersion compensation...

p> Wireless local area networks (WLAN) has been used recently due to their benefits which exhibits outstanding mobility with easier and faster configurations. The wireless local area network performance is much influenced by both network topology and hardware specifications and thus will impact the quality of service (QoS) parameters which are dela...

The transfer of graphene onto dielectric substrates to form an antenna needs to be performed with care, as tears and cracks may appear on the samples transferred improperly. This paper studies a detailed method in estimating the performance of a millimeter-wave (MMW) antenna built using commercially-available graphene layers. In contrast to the wid...

Methods of image processing can recognize the images of melanoma lesions border in addition to the disease compared to a skilled dermatologist. New swarm intelligence technique depends on meta-heuristic that is industrialized to resolve composite real problems which are problematic to explain by the available deterministic approaches. For an accura...

The electrocardiogram (ECG) is a very important biomedical signal that evaluates the electrical activity of the heart.. To diagnose heart disorders, different features should be extracted from the ECG signal .This work presents a new method to improve ECG signal performance based on median filter and an automated R-peaks detection. The strength of...

In fiber optics the Four Wave Mixing (FWM) has the harmful effect of an optical transmission system that can severely limit Wavelength Division Multiplexing (WDM) and reduce the transmission aptness. This work preset the durability of the different modulation format was tested to FWM by using Dispersion Shifted Fiber (DSF). Moreover, the performanc...

In fiber optics the Four Wave Mixing (FWM) has the harmful effect of an optical transmission system that can severely limit Wavelength Division Multiplexing (WDM) and reduce the transmission aptness. This work preset the durability of the different modulation format was tested to FWM by using Dispersion Shifted Fiber (DSF). Moreover, the performanc...

This paper examines the four-wave mixing (FWM) effect on optical code-division multiple-access (OCDMA) performance systems in the presence of Multi-Diagonal code (MD). System performance improvement is accomplished by means of fibre length tuning and stratified different modulation shapes, which are Non-return-to-Zero (NRZ), Gaussian, and Sine wave...

In recent years, occurrence rates of skin melanoma have shown a rapid increase, resulting in enhancements to death rates. Based on the difficulty and subjectivity of human clarification, computer examination of dermoscopy images has thus developed into a significant research field in this area. One the reasons for applying heuristic methods is that...

Abstract—In this work, a new technique in suppressing the effect of four-wave mixing (FWM) by Odd- Even Channels Arrangement (OEC) is presented. The proposed technique is verified mathematically and by simulations with other recent techniques which are input power and channel spacing under the same input parameters. Simulation was done with the pow...

CIPHERING OF TEXT BY USING SHFIT REGISTER TECHNIQUE AND ITS TRANSMISSION OVER OPTICAL FIBER

In this work, a new technique in suppressing the effect of four-wave mixing (FWM) by Odd-Even Channels Arrangement (OEC) is presented. The proposed technique is verified mathematically and by simulations with other recent techniques which are input power and channel spacing under the same input parameters. Simulation was done with the power variati...

In this work, a new technique in suppressing the effect of four-wave mixing (FWM) by Odd-Even Channels Arrangement (OEC) is presented. The proposed technique is verified mathematically and by simulations with other recent techniques which are input power and channel spacing under the same input parameters. Simulation was done with the power variati...

Magnetic Levitation system becomes a hot topic of study due to the minimum friction and low energy consumption which regards as very important issues. This paper proposed a new magnetic levitation system using real-time control simulink feature of (SIMLAB) microcontroller. The control system of the maglev transportation system is verified by simula...

The nonlinear crosstalk has a detrimental impact on the efficiency of optical communication systems. It becomes stronger with increasing the data transmission rate and transmission distances. We have investigated and estimated the behavior of a nonlinear effect such as the four wave mixing (FWM) under varying the fiber properties such as the freque...

Abstract—The electromagnetic levitation system is commonly used in the field of magnetic levitation system train. Magnetic levitation technology is one of the most promised issue of transportation and precision engineering. Magnetic levitation systems are free of problems caused by friction, wear, sealing and lubrication.In this paper, a new protot...

Abstract Inter Symbol Interference (ISI) represents one of the most challenging problems in fiber optic communication systems. It causes increase in path loss, degraded performance and delay spread hence; achieving high data rates becomes impossible. However, it is not yet fully explored in terms of electrical pulse shaping and high data rate. In t...

The influence of 2H-indeine-1, 3-dione derivatives on C-steel corrosion was studied in 1 M HCl solutions at 30 o C. Measurements were conducted using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. These studies have shown that 2H-indeine-1, 3-dione d...

This paper proposed a new technique to suppress the four-wave mixing (FWM) effect by using a smart filter technique. The behaviour of FWM and the performance of wavelength division multiplexing systems with 4 and 16 channels were simulated in the presence of the proposed technique. The simulation was also performed under different parameters such a...

Synthesis of new acid dyes, mono azo and diazo derived from 3-[2-(cyanomethyl)-thiazol-4-yl]coumarin and 3-(2-amino-thiazol-4-yl)coumarin using various derivatives amine, and their utilization in dyeing of textile fabrics is attempted in this article. The prepared dyestuffs were established using melting point, elemental analysis, infrared, ultravi...

This paper proposes hybrid Subcarrier Multiplying-Spectral Amplitude Coding-Optical Code Division Multiple Access system (SCM-SAC-OCDMA) based on the Free Space Optic (FSO) using Multi Diagonal (MD) code is. The proposed hybrid system is used to evaluate the contribution of different haze conditions of Malaysia as a tropical weather country as well...

A new approach to suppressing the four-wave mixing (FWM) crosstalk by using the pairing combinations of differently linear-polarized optical signals was investigated. The simulation was conducted using a four-channel system, and the total data rate was 40 Gb/s. A comparative study on the suppression of FWM for existing and suggested techniques was...

Four-Wave Mixing (FWM) is defined as an undesirable nonlinear effect that gives significantly degraded system performance and is expected to become the major drawback for optical communication systems. This study presents a method to suppress the FWM through system parameters optimization. The study was conducted on four different types of optical...

In order to meet the ultra high speed and ultra long-haul transmission distance in wavelength division multiplexing (WDM) systems, the nonlinear impairment affecting the overall spectral efficiency and system performance should be minimized. This paper proposes a strategy to mitigate the four-wave mixing (FWM) effect in WDM system. The strategy det...

In long-haul transmission systems, optical transmission characteristics are degraded by four-wave mixing (FWM) generated in optical fibers. This paper presents a new approach to reduce the four wave mixing crosstalk based on polarization interleaving is presented. The FWM behavior and the performance of WDM systems were analyzed using the proposed...

This paper proposes a new method that can suppress the four-wave mixing using an Optical Drop Multiplexing (ODM) technique. The four-wave mixing (FWM) behavior and the performance of wavelength division multiplexing (WDM) systems are investigated, using the proposed technique. It is found that the FWM power is drastically reduced to -96 dBm, when t...

Advanced modulation formats play a significant role for enhancing the bit rate in an optical transmission system. Ultra-long haul transmission distances are intensively investigated to further increase the spectral efficiency for building the next-generation optical networks. However, under a high data rate, the effects of a fiber nonlinearity such...

Four-wave mixing (FWM) is undesirable nonlinear effects that can degrade the optical transmission system. Under high data rate, i.e. 100 Gbps, and ultra-long haul distance, the effects of FWM can limit the system performance significantly. In this paper, we have analyzed and evaluated the system performance tolerance to FWM under the impact of effe...

Free space optic (FSO) is considered as an attractive option to fiber optic. FSO has the capability to go beyond the limits of fiber optics. However, atmospheric turbulence causes fluctuations in the intensity of the received light signal, impairing link performance. In this paper, we describe a new technique to mitigate turbulence-induced intensit...