Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453378
R. Bala, A. Marwaha
The goal of this paper is to explore the effects of two dimensional photonic band gap (PBG) crystals substrate on the performance of a graphene based triangular nano patch antenna in terahertz region (1-3 THz). Graphene as patch conductor on photonic crystal has been used as substrate material for high bandwidth, radiation efficiency and highly directional resonant antenna. Good impedance matching is achieved at the resonating frequencies with 5.6% bandwidth. The radiation characteristics including radiation efficiency and absorption cross section show significant improve on account of using PBG crystals substrate for graphene based patch antenna. The simulation has been performed using High Frequency Simulator Software (HFSS), which is a commercially available electromagnetic simulator based on finite element method technique.
{"title":"Analysis of graphene based triangular nano patch antenna using photonic crystal as substrate for wireless applications","authors":"R. Bala, A. Marwaha","doi":"10.1109/RAECS.2015.7453378","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453378","url":null,"abstract":"The goal of this paper is to explore the effects of two dimensional photonic band gap (PBG) crystals substrate on the performance of a graphene based triangular nano patch antenna in terahertz region (1-3 THz). Graphene as patch conductor on photonic crystal has been used as substrate material for high bandwidth, radiation efficiency and highly directional resonant antenna. Good impedance matching is achieved at the resonating frequencies with 5.6% bandwidth. The radiation characteristics including radiation efficiency and absorption cross section show significant improve on account of using PBG crystals substrate for graphene based patch antenna. The simulation has been performed using High Frequency Simulator Software (HFSS), which is a commercially available electromagnetic simulator based on finite element method technique.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121500804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453278
R. Jangir
This paper deals with spectrum sharing scenario, wherein cognitive radio users (secondary) and primary users coexist in adjacent frequency bands. It is imperative that in such scenarios, the interference introduced by the cognitive radio users in primary user band must be below the prescribed limits. We have proposed sub-optimal schemes for power allocation to cognitive radio users that can achieve performance comparable to the optimal schemes but with lesser complexity. The optimal scheme is compared with three proposed sub-optimal power allocation schemes. Numerical results arrived at also prove that the proposed sub-optimal schemes can achieve performance equivalent to the optimal scheme and the interference introduced by the cognitive radio users is within valid threshold limits.
{"title":"Power allocation schemes for OFDM-based Cognitive Radio networks","authors":"R. Jangir","doi":"10.1109/RAECS.2015.7453278","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453278","url":null,"abstract":"This paper deals with spectrum sharing scenario, wherein cognitive radio users (secondary) and primary users coexist in adjacent frequency bands. It is imperative that in such scenarios, the interference introduced by the cognitive radio users in primary user band must be below the prescribed limits. We have proposed sub-optimal schemes for power allocation to cognitive radio users that can achieve performance comparable to the optimal schemes but with lesser complexity. The optimal scheme is compared with three proposed sub-optimal power allocation schemes. Numerical results arrived at also prove that the proposed sub-optimal schemes can achieve performance equivalent to the optimal scheme and the interference introduced by the cognitive radio users is within valid threshold limits.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124890040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453324
M. Kansal, V. Kanwar, S. Bhatia
In this paper, we present several new two-step derivative-free iterative methods with and without memory for solving nonlinear equations. The convergence order of the proposed class without memory is four requiring only three functional evaluations per step. We further increase the convergence order from four to six by suitable variation of a free parameter in each iterative step without any additional functional evaluation. This self-accelerating parameter is calculated using Newton's interpolation polynomial of third degree. Numerical experiments and the comparison with the existing robust methods are included to confirm the theoretical results and high computational efficiency.
{"title":"Efficient derivative-free with memory variants of King's family for solving nonlinear equations","authors":"M. Kansal, V. Kanwar, S. Bhatia","doi":"10.1109/RAECS.2015.7453324","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453324","url":null,"abstract":"In this paper, we present several new two-step derivative-free iterative methods with and without memory for solving nonlinear equations. The convergence order of the proposed class without memory is four requiring only three functional evaluations per step. We further increase the convergence order from four to six by suitable variation of a free parameter in each iterative step without any additional functional evaluation. This self-accelerating parameter is calculated using Newton's interpolation polynomial of third degree. Numerical experiments and the comparison with the existing robust methods are included to confirm the theoretical results and high computational efficiency.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128576678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453377
Vaibhav Arora, Pulkit Sood, Kumar Utkarsh Keshari
Hybrid Particle Swarm Optimization with Wavelet Mutation (HPSOWM), Krill Herd & Spider Monkey optimization algorithms are recent algorithms proposed for numerical optimization. In this paper their performance across various benchmark functions is evaluated. A t-test is used to compare the statistical significance of the results.
{"title":"A comparison of HPSOWM, krill herd and Spider Monkey optimization algorithms","authors":"Vaibhav Arora, Pulkit Sood, Kumar Utkarsh Keshari","doi":"10.1109/RAECS.2015.7453377","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453377","url":null,"abstract":"Hybrid Particle Swarm Optimization with Wavelet Mutation (HPSOWM), Krill Herd & Spider Monkey optimization algorithms are recent algorithms proposed for numerical optimization. In this paper their performance across various benchmark functions is evaluated. A t-test is used to compare the statistical significance of the results.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128783082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453365
A. Mehta, Ramandeep Kumar, S. Bansal, J. Singh, V. Bhatnagar
Charged particles are produced in huge amount in high energy and astro-particle physics experiments such as LHC experiments at CERN, Geneva and in proposed India Based Neutrino Observatory (INO). The identification and measurement of these charged particle set the physics achievable for these experiments. Resistive plate chambers (RPCs), the gaseous detectors which work on the principle of ionization produced in the gaseous medium by fast moving charged particles, are extensively used in detection of charged particles. A laboratory is set-up at Department of Physics, Panjab University for the fabrication and testing of RPC detectors. This paper present the assembly and characterization performance of the fabricated RPCs.
{"title":"Assembly and characterization of gaseous particle detector: Resistive plate chambers","authors":"A. Mehta, Ramandeep Kumar, S. Bansal, J. Singh, V. Bhatnagar","doi":"10.1109/RAECS.2015.7453365","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453365","url":null,"abstract":"Charged particles are produced in huge amount in high energy and astro-particle physics experiments such as LHC experiments at CERN, Geneva and in proposed India Based Neutrino Observatory (INO). The identification and measurement of these charged particle set the physics achievable for these experiments. Resistive plate chambers (RPCs), the gaseous detectors which work on the principle of ionization produced in the gaseous medium by fast moving charged particles, are extensively used in detection of charged particles. A laboratory is set-up at Department of Physics, Panjab University for the fabrication and testing of RPC detectors. This paper present the assembly and characterization performance of the fabricated RPCs.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125800035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453304
Kuldeep Singh, K. S. Dhillon, K. Singh
CDMA implementation is widely used in various communication systems because of its high spectral efficiency. But near- far interference proves to be a serious problem tending to reduce the performance of CDMA systems. This problem can be reduced by implementing adaptive power control techniques. In this research paper, fuzzy logic based closed loop adaptive power control has been proposed for minimization of near-far interference. A fuzzy inference system has been developed which gives power control information on the basis of Received Signal Strength Indicator (RSSI), Signal to Noise Ratio (SNR), distance between base station and mobile station and degree of obstacles occurred in communication path. The results reveal that Fuzzy logic based closed loop adaptive power control system minimizes the near-far interference and improves the performance of CDMA systems in terms of spectral efficiency and system capacity.
{"title":"Fuzzy logic based closed loop adaptive power control for minimization of near-far interference in CDMA systems","authors":"Kuldeep Singh, K. S. Dhillon, K. Singh","doi":"10.1109/RAECS.2015.7453304","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453304","url":null,"abstract":"CDMA implementation is widely used in various communication systems because of its high spectral efficiency. But near- far interference proves to be a serious problem tending to reduce the performance of CDMA systems. This problem can be reduced by implementing adaptive power control techniques. In this research paper, fuzzy logic based closed loop adaptive power control has been proposed for minimization of near-far interference. A fuzzy inference system has been developed which gives power control information on the basis of Received Signal Strength Indicator (RSSI), Signal to Noise Ratio (SNR), distance between base station and mobile station and degree of obstacles occurred in communication path. The results reveal that Fuzzy logic based closed loop adaptive power control system minimizes the near-far interference and improves the performance of CDMA systems in terms of spectral efficiency and system capacity.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126035692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453406
Shaina, Amit Gupta
Free Space Optics (FSO) has gained significant importance for high bandwidth transmission capabilities in recent years. However, various factors contribute to considerable link performance degradation. In this paper, the most crucial weather phenomenon, i.e., fog, is taken into account as it severely affects the performance of the link. One of the most promising methods to mitigate impairments of the performance of FSO systems in such weather conditions is to choose the most suitable amplifier along with the use of array of receivers. This paper analyses and compares the performance of the link for different amplifiers in order to achieve reliable performance of link in heavy fog conditions. The model is simulated and the important simulation parameters that are bit error rate (BER), height of eye diagram, received signal power and Quality factor are discussed using different number of photo detectors in FSO link.
{"title":"Performance analysis of FSO link under effect of fog with array of receivers and amplifiers","authors":"Shaina, Amit Gupta","doi":"10.1109/RAECS.2015.7453406","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453406","url":null,"abstract":"Free Space Optics (FSO) has gained significant importance for high bandwidth transmission capabilities in recent years. However, various factors contribute to considerable link performance degradation. In this paper, the most crucial weather phenomenon, i.e., fog, is taken into account as it severely affects the performance of the link. One of the most promising methods to mitigate impairments of the performance of FSO systems in such weather conditions is to choose the most suitable amplifier along with the use of array of receivers. This paper analyses and compares the performance of the link for different amplifiers in order to achieve reliable performance of link in heavy fog conditions. The model is simulated and the important simulation parameters that are bit error rate (BER), height of eye diagram, received signal power and Quality factor are discussed using different number of photo detectors in FSO link.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126103636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453398
J. Singh, Gurdeep Singh, Sandeep Kaur, B. S. Sohi
In this paper, a design and implementation of single-band E-shaped Microstrip patch antenna for IEEE 802.11b (2.38GHz ~ 2.455 GHz) frequency band represented. An E-shaped patch antenna with substrate thickness of h=2mm, relative permittivity of dielectric substrate is 2.55 and resonate at resonance frequency of fr = 2.4 GHz for Bluetooth applications is designed and simulated successfully [2-3]. The design and simulation of antenna is performed by IE3D (Method of Moment) based full wave electromagnetic simulator. After that, now the same antenna is modelled and analysed using different Artificial Neural Network (ANN) models for parameters estimation having `Translm' function based Multilayer Perceptron (MLP) and Radial Basis Function (RBF) model. An ANN used for analysis is firstly trained by using data set obtained from electromagnetic simulator of antenna using IE3D software. This model has two input parameters: x-coordinate and y- coordinate of probe feed point and has four output parameters: Resonant Frequency(fr) Return Loss (S11 parameter), VSWR (dB) and Input Impedance (Rin in ohm).
{"title":"Performance analysis of different neural network models for parameters estimation of coaxial fed 2.4 GHz E-shaped Microstrip patch antenna","authors":"J. Singh, Gurdeep Singh, Sandeep Kaur, B. S. Sohi","doi":"10.1109/RAECS.2015.7453398","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453398","url":null,"abstract":"In this paper, a design and implementation of single-band E-shaped Microstrip patch antenna for IEEE 802.11b (2.38GHz ~ 2.455 GHz) frequency band represented. An E-shaped patch antenna with substrate thickness of h=2mm, relative permittivity of dielectric substrate is 2.55 and resonate at resonance frequency of fr = 2.4 GHz for Bluetooth applications is designed and simulated successfully [2-3]. The design and simulation of antenna is performed by IE3D (Method of Moment) based full wave electromagnetic simulator. After that, now the same antenna is modelled and analysed using different Artificial Neural Network (ANN) models for parameters estimation having `Translm' function based Multilayer Perceptron (MLP) and Radial Basis Function (RBF) model. An ANN used for analysis is firstly trained by using data set obtained from electromagnetic simulator of antenna using IE3D software. This model has two input parameters: x-coordinate and y- coordinate of probe feed point and has four output parameters: Resonant Frequency(fr) Return Loss (S11 parameter), VSWR (dB) and Input Impedance (Rin in ohm).","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125885284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453361
Pretty Neelam Topno, S. Chanana
This paper investigates the application of tilt integral derivative (TID) control as a supplementary controller for two-area thermal-thermal systems. The purpose of using TID control in AGC systems is to propose an improved feedback loop compensator, which possesses the merits of conventional PID control and offers better and optimal response. The paper utilizes the integral square error (ISE) performance index to form an objective function and a constrained non-linear minimization (CNM) optimization technique for evaluating the objective function. Hence, optimal values of controller parameters are obtained which offers a favorable operating condition for the system. A comparison of dynamic response of AGC systems with proposed TID control and PID control approach reveals that proposed TID controller is capable of delivering better performance.
{"title":"Tilt Integral Derivative control for two-area load frequency control problem","authors":"Pretty Neelam Topno, S. Chanana","doi":"10.1109/RAECS.2015.7453361","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453361","url":null,"abstract":"This paper investigates the application of tilt integral derivative (TID) control as a supplementary controller for two-area thermal-thermal systems. The purpose of using TID control in AGC systems is to propose an improved feedback loop compensator, which possesses the merits of conventional PID control and offers better and optimal response. The paper utilizes the integral square error (ISE) performance index to form an objective function and a constrained non-linear minimization (CNM) optimization technique for evaluating the objective function. Hence, optimal values of controller parameters are obtained which offers a favorable operating condition for the system. A comparison of dynamic response of AGC systems with proposed TID control and PID control approach reveals that proposed TID controller is capable of delivering better performance.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116775434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-01DOI: 10.1109/RAECS.2015.7453399
I. Singh, Deep Kamal Kaur Randhawa
This paper demonstrates the excellent temperature sensing property of the Graphene Nano-ribbon (GNR). The GNR junction used is of zigzag- armchair-zigzag configuration. The zigzag portion used is metallic in nature and the central region (armchair type) is semiconducting in nature. It is observed that with the increase in temperature from -273°C to 227°C, the conductance of the used sample follows a pattern which is linear in nature. This linear range of the pattern is being used for making the temperature nano-sensor. The range of the temperature is such chosen that it could be utilized for the various medical and industrial based applications. The results show that the temperature nano-sensor has a high resolution of 11095 Ω/°C, large temperature coefficient of resistance (TCR) 6.01 × 10-3°C-1 and wide temperature range -273.15°C to 227 °C.
{"title":"Graphene Nano-ribbon based temperature nanosensor and it's characteristic","authors":"I. Singh, Deep Kamal Kaur Randhawa","doi":"10.1109/RAECS.2015.7453399","DOIUrl":"https://doi.org/10.1109/RAECS.2015.7453399","url":null,"abstract":"This paper demonstrates the excellent temperature sensing property of the Graphene Nano-ribbon (GNR). The GNR junction used is of zigzag- armchair-zigzag configuration. The zigzag portion used is metallic in nature and the central region (armchair type) is semiconducting in nature. It is observed that with the increase in temperature from -273°C to 227°C, the conductance of the used sample follows a pattern which is linear in nature. This linear range of the pattern is being used for making the temperature nano-sensor. The range of the temperature is such chosen that it could be utilized for the various medical and industrial based applications. The results show that the temperature nano-sensor has a high resolution of 11095 Ω/°C, large temperature coefficient of resistance (TCR) 6.01 × 10-3°C-1 and wide temperature range -273.15°C to 227 °C.","PeriodicalId":256314,"journal":{"name":"2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116801711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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