Aditya Goel
Nit Bhopal, Electronics And Communication, Faculty Member
Citation/Export MLA R. K. Sethi, Dr. Aditya Goel, “Performance Analysis of Optical Communication Systems using OFDM by Employing QPSK Modulation”, January 15 Volume 3 Issue 1 , International Journal on Recent and Innovation Trends in... more
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MLA
R. K. Sethi, Dr. Aditya Goel, “Performance Analysis of Optical Communication Systems using OFDM by Employing QPSK Modulation”, January 15 Volume 3 Issue 1 , International Journal on Recent and Innovation Trends in Computing and Communication (IJRITCC), ISSN: 2321-8169, PP: 226 - 237, DOI: 10.17762/ijritcc2321-8169.150147
APA
R. K. Sethi, Dr. Aditya Goel, January 15 Volume 3 Issue 1, “Performance Analysis of Optical Communication Systems using OFDM by Employing QPSK Modulation”, International Journal on Recent and Innovation Trends in Computing and Communication (IJRITCC), ISSN: 2321-8169, PP: 226 - 237, DOI: 10.17762/ijritcc2321-8169.150147
MLA
R. K. Sethi, Dr. Aditya Goel, “Performance Analysis of Optical Communication Systems using OFDM by Employing QPSK Modulation”, January 15 Volume 3 Issue 1 , International Journal on Recent and Innovation Trends in Computing and Communication (IJRITCC), ISSN: 2321-8169, PP: 226 - 237, DOI: 10.17762/ijritcc2321-8169.150147
APA
R. K. Sethi, Dr. Aditya Goel, January 15 Volume 3 Issue 1, “Performance Analysis of Optical Communication Systems using OFDM by Employing QPSK Modulation”, International Journal on Recent and Innovation Trends in Computing and Communication (IJRITCC), ISSN: 2321-8169, PP: 226 - 237, DOI: 10.17762/ijritcc2321-8169.150147
Research Interests: Engineering, Electronic Engineering, Control Systems Engineering, Telecommunications Engineering, Computer Science, and 16 moreSoftware Engineering, Information Technology, Education, Technology, Educational Technology, Biomedical Engineering, Computer Engineering, Science Education, Data Mining, Research Methodology, Educational Research, Computer Networks, Electronics, Industrial Engineering, Cloud Computing, and Electronics Engineering
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Introduction: AIDS is a deadly disease and is leading cause of morbidity in today's population .EPTB is one of most common opportunistic infection associated with AIDs and cervical lymphadenopathy is most common among them . CD4+... more
Introduction: AIDS is a deadly disease and is leading cause of morbidity in today's population .EPTB is one of most common opportunistic infection associated with AIDs and cervical lymphadenopathy is most common among them . CD4+ cells in our body plays an important role in treatment outcome of AIDS patients and is marker of good immunity. This is a retrospective ana Materials And Methods: lysis conducted in a tertiary centre in the Department of Otorhinolaryngology & head and neck surgery from January 2020 to December 2020. A total of 80 patients were studied for 1 year. Conrmed cases of AIDS with extra pulmonary tuberculosis in head and neck region were studied, keeping all ethical issues in mind and there CD4+ counts were followed up for 3, 6 and 12 weeks. All patients under stu Results: dy were given HAART and ATT simultaneously, 69 % patients have cervical lymphadenopathy as the most common site of extrapulmonary tuberculosis, and CD4+ cells >500 cells/mm3 at the time o...
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The National Synchrotron Light Source II is a 3 GeV X-ray user facility commissioned in 2014. The NSLS-II RF system consists of the master oscillator, digital low level RF controllers, linac, booster and storage ring RF sub-systems, as... more
The National Synchrotron Light Source II is a 3 GeV X-ray user facility commissioned in 2014. The NSLS-II RF system consists of the master oscillator, digital low level RF controllers, linac, booster and storage ring RF sub-systems, as well as a supporting cryogenic system. Here we will report on RF commissioning and early operation experience of the system.
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Research Interests: Computer Science, Philosophy of Science, Information Security, Applied Cryptography, Photography Theory, and 15 moreComputer Security, Cryptography, Positron Emission Tomography, Molecular Computing, Communication System, Protocols, Financial Institutions, Information Transfer, Internet Architecture, PKC, Eavesdropping, E Commerce, Key Distribution, Bb, and arXiv
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Next generation communication network will be required to provide increased data rate efficiently along with the flexibility to adapt to various dynamic traffic patterns in a cost effective manner. The optical fiber communication system... more
Next generation communication network will be required to provide increased data rate efficiently along with the flexibility to adapt to various dynamic traffic patterns in a cost effective manner. The optical fiber communication system can do the same along with low losses and good quality of transmission. In the recent past, the enormous growth of network traffic on deployed optical communication networks forced the demand for a more constructive utilization of the channel capacity of the optical fiber communication channel. In near future, the next generation optical links are going to carry 10 / 40 Gbps per wavelength. The two windows at 1310 & 1550 nm provide low attenuation with transmission bandwidth of approximately 50 Tbps. Optical fiber communication system are primarily operated at wavelength near 1550 nm in order to match with the minimum loss point of silica fiber and hence maximize transmission distance. Unluckily, at this wavelength dispersion restricts the achievable...
This paper proposes an optimization method for the design of M channel perfect reconstruction cosine modulated filter (CMFB) bank. The design problem is formulated as a combination of stopband energy, passband energy, coding gain and the... more
This paper proposes an optimization method for the design of M channel perfect reconstruction cosine modulated filter (CMFB) bank. The design problem is formulated as a combination of stopband energy, passband energy, coding gain and the least square error of the overall transfer function of the filter bank. The objective function is minimized with the dc leakage free condition, as the dc leakage free condition is essential in image coding application for smooth image. The proposed method is simple, and has high design efficiency in both time and memory requirement. The performance of this algorithm is evaluated in both subjective and objective quality terms. Two design examples are included to illustrate the proposed method.
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A new technique is proposed for the enhancement of security levels against the eavesdropper in Optical code division multiple access (OCDMA) Spectral amplitude coding (SAC) System. This technique is the combination of real and virtual... more
A new technique is proposed for the enhancement of security levels against the eavesdropper in Optical code division multiple access (OCDMA) Spectral amplitude coding (SAC) System. This technique is the combination of real and virtual user’s spectral chip, according to the newly developed Zero cross correlation code. The data bit sequence allocates to virtual user is kept in defined pattern and sequence, is complement to each other in a group of two users. Probability of code detection of individual user decreases due to virtual user and complement defined sequence of virtual user removes the occurrence probability of presence of single user’s code in the channel. The simulation and analytical result show that the proposed scheme has a better performance than existing methods.
Wireless sensor network (WSN) is susceptible tovarious kind of security attacks; one among them which is more prevalent isDoS(Denial of Service)attack. Spam message consumes most of the node energy and cause energy constraints node to... more
Wireless sensor network (WSN) is susceptible tovarious kind of security attacks; one among them which is more prevalent isDoS(Denial of Service)attack. Spam message consumes most of the node energy and cause energy constraints node to drain with energy. So the prevention of such kind of attack is required in WSN. To solve this issue we are using a systematic approach of identifying spam message which may leads to the DoS attack. We are using a set of mobile agents which perform specifically assigned task to control overflow of excess Spam messages so as to stop DoS attack. The proposed spam prevention model for the MA(Mobile Agent)[9]is experimented on WSN. The proposed model Restrict the unnecessary MAs roaming and cloning are minimized and thus the energy can be saved. To calculate the threshold value we have used two techniques; one is based on the number of itinerary the clone threshold is set and the other is based on the simple moving average method so as to calculate the thre...
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Research Interests: Materials Science, Optics, Finite Element Analysis, Fiber, Refractive Index, and 10 moreWave Equation, Optical physics, Optical fiber, Wavelength Division Multiplexing, Fiber Optic, Indexation, Polarization Mode Dispersion, Optimal Design, Single Mode Fiber, and Electrical And Electronic Engineering
It is seen that the blocking probability of traffic requests decreases as the wavelength conversion factor increases. In this paper investigation are carried out to manage the traffic load by reducing the blocking probability and we... more
It is seen that the blocking probability of traffic requests decreases as the wavelength conversion factor increases. In this paper investigation are carried out to manage the traffic load by reducing the blocking probability and we explore the possibility for network with different ...
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Next-generation, high-performance storage ring light sources based on multibend achromat optics will require on-axis injection because of the extremely small dynamic aperture. Injectors will need to supply full-current bunch replacement... more
Next-generation, high-performance storage ring light sources based on multibend achromat optics will require on-axis injection because of the extremely small dynamic aperture. Injectors will need to supply full-current bunch replacement in the ring with high single-bunch charge for swap-out. For upgrades of existing light sources, such as the Advanced Photon Source Upgrade (APS-U), it is economical to retain the existing injector infrastructure and make appropriate improvements. The challenges to these improvements include achieving high single-bunch charge in the presence of instabilities, beam loading, charge stability and reliability. In this paper, we discuss the rationale for the injector upgrades chosen for APS-U, as well as backup and potential alternate schemes. To date, we have achieved single-bunch charge from the injectors that doubles the original design value, and have a goal to achieve about three times the original design value.
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To enable humanoid robots to share common house space with humans in a social environment, we need to develop effective and robust human-robot communication technology. In the present paper, we have developed gesture and speech based real... more
To enable humanoid robots to share common house space with humans in a social environment, we need to develop effective and robust human-robot communication technology. In the present paper, we have developed gesture and speech based real time communication methodology with humanoid robot using deep learning based techniques. More specifically, for speech based communication, two architectures have been developed using Long Short Term Memory(LSTM) based Recurrent Neural Networks and Convolutional Neural Networks (CNN) for both Hindi and English speech. For gesture recognition and subsequent communication, a specially configured 3-D CNN architecture has also been developed. Further, a fusion framework has been used for comparing confidence scores of all the input modes so that the robot can take a decision for communication based on maximum confidence score. Rigorous experiments have been conducted with standard data sets as well as indigeneously created data sets. Performance results of different architectures have been presented and useful conclusions have been drawn about the effectiveness of using such multiple modes for the robot for decision reinforcement purposes. For conducting all the experiments the Humanoid Robot NAO has been used for evaluating the above methodology.
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Gliomas are one of the most dangerous brain tumours, which are life‐threatening in their highest grade. Manual diagnosis and detection of brain tumours are time‐consuming. Thus, early and accurate detection of such tumours becomes... more
Gliomas are one of the most dangerous brain tumours, which are life‐threatening in their highest grade. Manual diagnosis and detection of brain tumours are time‐consuming. Thus, early and accurate detection of such tumours becomes essential for its prognosis. In this work, we aim to develop a fully automated glioma grade classification framework. The proposed method aims to learn relevant and non‐redundant features from magnetic resonance brain tumour images. Gabor filter banks extract discriminant features from the brain images, and locality preserving projections are utilized for feature reduction to achieve non‐redundant features. We train Gaussian radial basis function–support vector machine classifiers using these features for classifying gliomas into low grade glioma (LGG) or high‐grade glioma. We apply Synthetic Minority Over‐Sampling Technique on the minority class (LGG) to mitigate the class imbalance problem. The performance of the proposed method is validated by conducting fivefold cross‐validation. We evaluate the performance of our proposed framework on different BRATS datasets: BRATS 2013, BRATS 2015, and BRATS 2017. We perform extensive experiments on each dataset separately, and experimental findings demonstrate that our proposed approach provides significantly superior performance compared to state‐of‐the‐art techniques.
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Optical Burst Switching (OBS) is a promising technology for the future generation Internet. Control architecture and Contention resolution are the main issues faced by the Optical Burst Switching networks. In this paper we are only taking... more
Optical Burst Switching (OBS) is a promising technology for the future generation Internet. Control architecture and Contention resolution are the main issues faced by the Optical Burst Switching networks. In this paper we are only taking care of the Contention problem and to overcome this issue we propose Pre-Deflection Routing with Control Packet Signal Scheme for Contention Resolution in Optical Burst Switch Networks. In this paper Pre-deflection routing approach has been proposed in which routing is carried out in two ways, Shortest Path First (SPF) and Least Hop First (LHF) Routing to forward the clusters and canoes respectively. Hereafter Burst Offset Time Control Algorithm has been proposed where a forward control packet (FCP) collects the congestion price and contention price along its paths. Thereafter a reverse-direction control packet (RCP) sent by destination node which delivers the information of FCP to the source node, and source node uses this information to revise it...
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Reconfiguration of a wavelength routed optical network with the use of priority scheduling algorithm to priotoriza lightpath request with the aim to utilizing or exhausting the resources. Preference has given to heavily loaded in... more
Reconfiguration of a wavelength routed optical network with the use of priority scheduling algorithm to priotoriza lightpath request with the aim to utilizing or exhausting the resources. Preference has given to heavily loaded in establishing lightpaths between node pairs having large traffic and low preference to lightly loaded lightpaths. Applications such as grid computing, e-science, three dimensional (3D) teleconferencing consume large bandwidth and require that the lightpaths are available for the entire session although there might be intermittent periods with less traffic between the nodes. Hence, the reconfiguration process must not tear down these lightpaths. We propose to use a priority scheduling algorithm in which lightpaths requests are prioritize according to the class of traffic, and the lightpaths of high priority applications are entertained first by the reconfiguration process. For low priority applications such as email, the lightpath requests will be processed l...
A new technique is proposed for the enhancement of security against the eavesdropper in Optical code division multiple access (OCDMA) Spectral amplitude coding (SAC) System. This technique is the combination of real and virtual user’s... more
A new technique is proposed for the enhancement of security against the eavesdropper in Optical code division multiple access (OCDMA) Spectral amplitude coding (SAC) System. This technique is the combination of real and virtual user’s spectral chip, according to the newly developed Zero cross correlation code. The define sequence assign to virtual users, is complement to each other in a group of two users. Probability of code detection of individual user decreases due to virtual user and complement of defined sequence of virtual user, removes the occurrence of single user’s code in the channel. The simulation and analytical results show that the proposed scheme has a better performance than existing methods.
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We have demonstrated the transmission performance through simulation for seamless integration of ROF and 10-Gbit/s wired signal WDM-PON system based on an integrated external modulator with source-free optical network unit. At the one of... more
We have demonstrated the transmission performance through simulation for seamless integration of ROF and 10-Gbit/s wired signal WDM-PON system based on an integrated external modulator with source-free optical network unit. At the one of the two arms of the integrated external modulator, the optical carrier suppression (OCS) was employed to generate 40-GHz optical millimeter wave (mm-wave) and up-converted the baseband signal as wireless signal. In another arm of the integrated external modulator, data of 10-Gbit/s are used for downstream transmission as wired signal based on double sideband modulation. By using one intensity modulator, the downstream wired signal is re-modulated for upstream on-off keying (OOK) data at 2.5-Gbit/s because of its downstream RZ shape waveform. The 10-Gbit/s wired signal, 2.5-Gbit/s intensity modulated radio signal, and 2.5- Gbit/s upstream signal have been transmitted over 20-Km single mode fiber (SMF) successfully. The simulated results demonstrate t...
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The demand of bandwidth in mobile communication is growing exponentially day-by-day, as the numbers of users have been increased drastically over the span of last five years. The next generation wireless communication systems therefore... more
The demand of bandwidth in mobile communication is growing exponentially day-by-day, as the numbers of users have been increased drastically over the span of last five years. The next generation wireless communication systems therefore need to be of higher standards, so as to support various Broadband wireless servicessuch as, Video conferencing, mobile videophones, high-speed Internet access etc. The existing wireless systems can hardly provide transmission capacity of the order of few Mbps. However, millimeter (mm) waves and optical fiber technology has the potential of providing data capacity of the order of Mbps and Tbps respectively. Therefore the requirements of broadband wireless system can be met through the integration of optical fiber and millimeter wave wireless systems. In this paper we suggest a modified millimeter wave wireless system using orthogonal frequency division multiplexing (OFDM) technique, integrated with optical fiber as a feeder network. Here we have inves...
A revolutionary and robust magnetic resonance (MR) brain tumor detection and segmentation approach has been presented in this work. We have put forward a robust technique to extract the tumor and classify the same as benign or malignant.... more
A revolutionary and robust magnetic resonance (MR) brain tumor detection and segmentation approach has been presented in this work. We have put forward a robust technique to extract the tumor and classify the same as benign or malignant. The extraction of features from detected lesions is achieved through usage of wavelet transform. There is an immediate need to eliminate the redundant features from extracted subset because they degrade the performance of classification. Now, these reduced features are fed to kernel-based SVM (K-SVM). The kernel that is being utilized in this framework is Gaussian radial basis as it is quite efficient. Once the MR images are classified as benign or malignant, the next obvious step is to segment out the infected portion. We have relied upon region growing technique for the segmentation of the infected area. K-fold cross-validation approach has been adopted to optimize the performance K-SVM. We have compared the outcomes of our approach to that of various in-class conventional approaches. Experimental outcomes clearly suggest that our approach has performed efficiently and robustly for almost entire set of data and has performed way better when compared to existing in-class methodologies both qualitatively as well as quantitatively.
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MR brain tumor classification is one of the extensively utilized approaches in medical prognosis. However, analyzing and processing MR brain images is still quite a task for radiologists. To encounter this problem, the evaluation of... more
MR brain tumor classification is one of the extensively utilized approaches in medical prognosis. However, analyzing and processing MR brain images is still quite a task for radiologists. To encounter this problem, the evaluation of existing canonical techniques has already been done. There are numeral MR brain tumor classification approaches that are being used for medical diagnosis. In this paper, we have developed an automated computer-aided network for diagnosis of MR brain tumor class, i.e., HGG and LGG. We have proffered a Gabor-modulated convolutional filter-based classifier for brain tumor classification. The inclusion of Gabor filter dynamics endows the competency to deal with spatial and orientational transformations. This mere modification (modulation) of conventional convolutional filters by Gabor filters empowers the proposed architecture to learn relatively smaller feature maps and thereby, decreasing network parameter requirement. We have introduced some skip connections to our modulated CNN architecture without introducing an extra network parameter. Pre-trained networks, i.e., Alex-Net, Google-Net (Inception V1), Res-Net and VGG 19 have been considered for performance evaluation of our proposed Gabor-modulated CNN. Additionally, some popular machine learning classification techniques have also been considered for comparative analysis. Experimental findings demonstrate that our proposed network has limited network parameters to learn; therefore, it is quite easy to train such networks.
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Abstract This paper proposes a new design of encoder and decoder with novel code design for one–dimensional (1D) (spectral domain) and two-dimensional (2D) (spectral and time domain) optical code divisions multiple access system. The... more
Abstract This paper proposes a new design of encoder and decoder with novel code design for one–dimensional (1D) (spectral domain) and two-dimensional (2D) (spectral and time domain) optical code divisions multiple access system. The suggested code has a zero cross-correlation property in 1D and 2D modes, so multiple-access interference (MAI) is totally eliminated. In proposed new encoder, code reconfiguration is achieved within two users in each group at the transmitter end with defined sequence. This approach degrades the code detection probability at the receiving end against the eavesdropper in the presence of single user in network. Another switching improves the code security against the on–off energy-level detection at the transmitter end. The mathematical and simulation analysis is performed for the proposed code. The probabilities of code estimation at the transmitter and receiver ends are analysed which shows a better confidentiality. The mathematical analysis shows that the proposed code has a better performance than the existing 1D random diagonal, 1D modified double-weight, 2D perfect difference, and 2D diluted perfect difference codes.
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Research Interests: Engineering, Electronic Engineering, Control Systems Engineering, Computer Science, Information Technology, and 15 moreEducation, Educational Technology, Biomedical Engineering, Computer Engineering, Science Education, Data Mining, Research Methodology, Educational Research, Computer Networks, Electronics, Industrial Engineering, Cloud Computing, Multiplexing, Electronics Engineering, and Engineering Technology
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Development effort is underway on a 352MHz, 200kW solid state rf system intended as the base design to replace the existing klystron-based rf systems presently in use at the Advanced Photon Source (APS). A sixteen-input, 200kW final... more
Development effort is underway on a 352MHz, 200kW solid state rf system intended as the base design to replace the existing klystron-based rf systems presently in use at the Advanced Photon Source (APS). A sixteen-input, 200kW final combining cavity was designed, built, and successfully tested to 29kW CW in combiner mode, and to 200kW CW in back-feed mode, where an external klystron was used to transmit power into the combining cavity. A four-port waveguide combiner was also tested in both backfeed and combiner mode to 193kW and 26kW respectively. Slow and fast interlock systems were designed and implemented to support the testing process. An EPICS and Programmable Logic Controller (PLC)-based system was developed to control, communicate with, and monitor the rf amplifiers used in the combiner-mode test, and to monitor and log system performance parameters relating to the combining cavity. Low-level rf control of the cavity in 29kW combiner-mode operation was achieved using the exis...
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The demand of bandwidth in mobile communication is growing exponentially day-by-day, as the numbers of users have been increased drastically over the span of last five years. The next generation wireless communication systems therefore... more
The demand of bandwidth in mobile communication is growing exponentially day-by-day, as the numbers of users have been increased drastically over the span of last five years. The next generation wireless communication systems therefore need to be of higher standards, so as to support various Broadband wireless servicessuch as, Video conferencing, mobile videophones, high-speed Internet access etc. The existing wireless systems can hardly provide transmission capacity of the order of few Mbps. However, millimeter (mm) waves and optical fiber technology has the potential of providing data capacity of the order of Mbps and Tbps respectively. Therefore the requirements of broadband wireless system can be met through the integration of optical fiber and millimeter wave wireless systems. In this paper we suggest a modified millimeter wave wireless system using orthogonal frequency division multiplexing (OFDM) technique, integrated with optical fiber as a feeder network. Here we have inves...
Research Interests: Wireless Systems, Mobile Communication, Millimeter Wave Antennas, Video Conferencing, Integrated Optics, and 10 moreWireless Network, Internet Access, High Speed, Optical fiber, Wireless communication systems, Next Generation Wireless Systems, Radio Networks, Additive White Gaussian Noise, Millimeter Wave, and FREQUENCY DIVISION MULTIPLEXING
Beginning in early 2020, coronavirus disease (COVID-19) has rapidly spread all over the world. As of now there have been over 102.52 million confirmed cases along with 2.21 million deaths worldwide. Our objective is to create an algorithm... more
Beginning in early 2020, coronavirus disease (COVID-19) has rapidly spread all over the world. As of now there have been over 102.52 million confirmed cases along with 2.21 million deaths worldwide. Our objective is to create an algorithm that will predict the severity of a COVID-19 case for an individual based on demographic data such as race, age, gender, and location. Using international, national and local datasets, we collected the demographic data and organized them into their respective categories, namely age, race, gender, and location of origin. We then inputted this data into an algorithm that works around the principle of probability. Our algorithm uses such trends to develop a risk assessment and create a model. While compiling that data we noted common trends within the three demographics. Specifically, around the age thirty, cases were higher compared to other age ranges. The data collected and trends noted can be used to prioritize and prepare for patients that may be...
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The enormous transmission capacity of the order of thousand of Gb/s offered by single mode fibers cannot be fully utilized with the conventional step index fiber. To increase the bit rate and the repeater spacing, some more advanced fiber... more
The enormous transmission capacity of the order of thousand of Gb/s offered by single mode fibers cannot be fully utilized with the conventional step index fiber. To increase the bit rate and the repeater spacing, some more advanced fiber designs have to be considered. ...