Pub Date : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253157
M. Purnomo, A. Kitagawa
The development of radar technology, Synthetic Aperture Radar (SAR) and Unmanned Aerial Vehicle (UAV) requires the communication facilities and infrastructures that have variety of platforms and high quality of image. In this paper, we obtain the basic configuration of triangle array antenna using corporate feeding-line for Circularly Polarized- Synthetic Aperture Radar (CP-SAR) sensor embedded on small UAV or drone airspace with compact, small, and simple configuration. The Method of Moments (MoM) is chosen in the numerical analysis for fast calculation of the unknown current on the patch antenna. The developing of triangle array antenna is consist of four patches of simple equilateral triangle patch with adding truncated corner of each patch and resonant frequency at f = 1.25 GHz. Proximity couple, perturbation segment, single feeding method are applied to generate the circular polarization wave from radiating patch. The corporate feeding-line design is implemented by combining some T-junctions to distribute the current from input port to radiating patch and to reach 2×2 patches. The performance results of this antenna, especially for gain and axial ratio (Ar) at the resonant frequency are 11.02 dBic and 2.47 dB, respectively. Furthermore, the two-beams appeared at boresight in elevation plane have similar values each other i.e. for average beamwidth of 10 dBic-gain and the 3 dB-Ar are about 20° and 70°, respectively.
{"title":"Developing basic configuration of triangle array antenna for circularly polarized-Synthetic Aperture Radar sensor application","authors":"M. Purnomo, A. Kitagawa","doi":"10.1109/ICRAMET.2017.8253157","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253157","url":null,"abstract":"The development of radar technology, Synthetic Aperture Radar (SAR) and Unmanned Aerial Vehicle (UAV) requires the communication facilities and infrastructures that have variety of platforms and high quality of image. In this paper, we obtain the basic configuration of triangle array antenna using corporate feeding-line for Circularly Polarized- Synthetic Aperture Radar (CP-SAR) sensor embedded on small UAV or drone airspace with compact, small, and simple configuration. The Method of Moments (MoM) is chosen in the numerical analysis for fast calculation of the unknown current on the patch antenna. The developing of triangle array antenna is consist of four patches of simple equilateral triangle patch with adding truncated corner of each patch and resonant frequency at f = 1.25 GHz. Proximity couple, perturbation segment, single feeding method are applied to generate the circular polarization wave from radiating patch. The corporate feeding-line design is implemented by combining some T-junctions to distribute the current from input port to radiating patch and to reach 2×2 patches. The performance results of this antenna, especially for gain and axial ratio (Ar) at the resonant frequency are 11.02 dBic and 2.47 dB, respectively. Furthermore, the two-beams appeared at boresight in elevation plane have similar values each other i.e. for average beamwidth of 10 dBic-gain and the 3 dB-Ar are about 20° and 70°, respectively.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116140118","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253146
Omar A. Hammood, M. N. M. Kahar, Muamer N. Mohammed
In Vehicular Ad-hoc Networks (VANETs), data routing is a major problem because of its quick change in topology and vehicular high mobility. VANETs are ad hoc wireless mobile networks which play important role in commercial applications and safety of public vehicular communications. The routing protocols that base on vehicular position are attracting much interest because of the availability and advancement of devices equipped with GPS. A major problem with VANETs is the frequent disruptions in the path of vehicles due to the high mobility of the participating vehicles. This can lead to the breaking of established links and result in low throughput, delay in service delivery, less overhead as well as low rate of delivery. In this paper, Using Receiver-Based Approach (URBA) is proposed. The proposed approach (URBA) compared to VANET, incorporates a potential receiver-based strategy which is traditionally better in performance and might achieve less delay in service delivery with a higher rate of delivery.
{"title":"Enhancement the video quality forwarding Using Receiver-Based Approach(URBA) in Vehicular Ad-Hoc Network","authors":"Omar A. Hammood, M. N. M. Kahar, Muamer N. Mohammed","doi":"10.1109/ICRAMET.2017.8253146","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253146","url":null,"abstract":"In Vehicular Ad-hoc Networks (VANETs), data routing is a major problem because of its quick change in topology and vehicular high mobility. VANETs are ad hoc wireless mobile networks which play important role in commercial applications and safety of public vehicular communications. The routing protocols that base on vehicular position are attracting much interest because of the availability and advancement of devices equipped with GPS. A major problem with VANETs is the frequent disruptions in the path of vehicles due to the high mobility of the participating vehicles. This can lead to the breaking of established links and result in low throughput, delay in service delivery, less overhead as well as low rate of delivery. In this paper, Using Receiver-Based Approach (URBA) is proposed. The proposed approach (URBA) compared to VANET, incorporates a potential receiver-based strategy which is traditionally better in performance and might achieve less delay in service delivery with a higher rate of delivery.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130213440","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253142
O. D. Winarko, R. Hidayat, H. A. Nugroho, R. Anggara, A. Lestari
LFM sawtooth modulation technique on FMCW radar is used in a relatively large radar range and with a negligible influence of Doppler frequency. Despite its advantages, inaccurate timing of transmitted signals and beat signal acquisition process on FMCW radar by using sawtooth modulations give effect on reducing SNR and capability of target detection. In this study, we developed methods to synchronize beat signal using overshoot detection and data shifting to reduce the effect of inaccurate hardware timing in the LFM sawtooth. The overshoot is mainly caused by abrupt changes at the end of the sawtooth, commonly called No-Dwell. This developed method has been tested on INDERA MX-4 coastal radar. The method demonstrated improved radar dynamic range of 20 dB and a reduced noise floor from −18 dBm to −45 dBm.
{"title":"Mitigation methods of sawtooth modulations effect on FMCW radar INDERA MX-4","authors":"O. D. Winarko, R. Hidayat, H. A. Nugroho, R. Anggara, A. Lestari","doi":"10.1109/ICRAMET.2017.8253142","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253142","url":null,"abstract":"LFM sawtooth modulation technique on FMCW radar is used in a relatively large radar range and with a negligible influence of Doppler frequency. Despite its advantages, inaccurate timing of transmitted signals and beat signal acquisition process on FMCW radar by using sawtooth modulations give effect on reducing SNR and capability of target detection. In this study, we developed methods to synchronize beat signal using overshoot detection and data shifting to reduce the effect of inaccurate hardware timing in the LFM sawtooth. The overshoot is mainly caused by abrupt changes at the end of the sawtooth, commonly called No-Dwell. This developed method has been tested on INDERA MX-4 coastal radar. The method demonstrated improved radar dynamic range of 20 dB and a reduced noise floor from −18 dBm to −45 dBm.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129360159","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253152
N. Armi, W. Gharibi, W. Khan, H. Zangoti, S. Rizvi, C. Wael
Malicious user is internal attacker that disturb communication. In case of cognitive radio, malicious user attacks primary signal detection and influences the fidelity of sensing outcome. This paper studies malicious user attack and its impacts to sensing outcome in cognitive radio network (CRN). We consider a number of malicious user that emulate primary user (PU) signal. Malicious users are randomly deployed around secondary user (SU) at a certain distance. The distance between PU transmitter and SU is 100 km. We define different number of malicious user and observe the impact to detection error rate. The change of transmission power of malicious user is also studied. These two cases is investigated under two hypothesis of Neyman Pearson criterion. The derived results show that increasing number of malicious user can increase probability of error rate. Furthermore, increasing power transmission of malicious user can increase probability of error rate as well.
{"title":"Error detection of malicious user attack in cognitive radio networks","authors":"N. Armi, W. Gharibi, W. Khan, H. Zangoti, S. Rizvi, C. Wael","doi":"10.1109/ICRAMET.2017.8253152","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253152","url":null,"abstract":"Malicious user is internal attacker that disturb communication. In case of cognitive radio, malicious user attacks primary signal detection and influences the fidelity of sensing outcome. This paper studies malicious user attack and its impacts to sensing outcome in cognitive radio network (CRN). We consider a number of malicious user that emulate primary user (PU) signal. Malicious users are randomly deployed around secondary user (SU) at a certain distance. The distance between PU transmitter and SU is 100 km. We define different number of malicious user and observe the impact to detection error rate. The change of transmission power of malicious user is also studied. These two cases is investigated under two hypothesis of Neyman Pearson criterion. The derived results show that increasing number of malicious user can increase probability of error rate. Furthermore, increasing power transmission of malicious user can increase probability of error rate as well.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134252560","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253151
I Gede Puja Astawa, Yonis Kurniawan, Aries Pratiarso, M. Yoedy, B. Hendy, Z. Ahmad
In this paper, the performance of single-radio frequency (RF) technique in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) receiver using Turbo Code was evaluated. Data were encoded using Turbo encoder then modulated by 64-QAM and further transmitted using spatial multiplexing and modulated by OFDM. The simulation showed that the channel estimation technique worked well. It had shown by the curve between theory and estimated channel were coincided, which the block type of pilot structure was employed. While, the performance of Vertical-Bell Laboratories Layered Space-Time (V-BLAST) zero-forcing (ZF) detector was more reliable in Additive white Gaussian noise (AWGN) and multipath rayleigh fading channel. And the coding channel, Turbo Code with code rate 1/3, was more reliable and optimum if compared with code rate 1/2. So, it was capable to provide 0.24 dB coding gain (estimated channel) and 0.3 dB coding gain (perfect channel) in MIMO-OFDM system based on single-RF. As the comparison of antenna configuration, the number of transmitters on the MIMO-OFDM system used as much as 2 transmitters. For 2 receiver antennas based on single- RF worked better than 2 conventional receiver antennas in theory and estimation. However, it still has less performance of the system than 4 conventional receiver antennas. At BER of 10-3 and from the comparison of Turbo coding rate which used in system, the code rate 1/3 had provided 0.24 dB coding gain from the code rate 1/2 in estimation of single-RF system. Then, for 2 and 4 conventional receiver antennas configuration, the code rate 1/3 had provided 2.8 dB and 2.1 dB coding gain from the code rate 1/2 in estimation channel respectively.
{"title":"Performance of single-RF based MIMO-OFDM 2×2 using Turbo Code","authors":"I Gede Puja Astawa, Yonis Kurniawan, Aries Pratiarso, M. Yoedy, B. Hendy, Z. Ahmad","doi":"10.1109/ICRAMET.2017.8253151","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253151","url":null,"abstract":"In this paper, the performance of single-radio frequency (RF) technique in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) receiver using Turbo Code was evaluated. Data were encoded using Turbo encoder then modulated by 64-QAM and further transmitted using spatial multiplexing and modulated by OFDM. The simulation showed that the channel estimation technique worked well. It had shown by the curve between theory and estimated channel were coincided, which the block type of pilot structure was employed. While, the performance of Vertical-Bell Laboratories Layered Space-Time (V-BLAST) zero-forcing (ZF) detector was more reliable in Additive white Gaussian noise (AWGN) and multipath rayleigh fading channel. And the coding channel, Turbo Code with code rate 1/3, was more reliable and optimum if compared with code rate 1/2. So, it was capable to provide 0.24 dB coding gain (estimated channel) and 0.3 dB coding gain (perfect channel) in MIMO-OFDM system based on single-RF. As the comparison of antenna configuration, the number of transmitters on the MIMO-OFDM system used as much as 2 transmitters. For 2 receiver antennas based on single- RF worked better than 2 conventional receiver antennas in theory and estimation. However, it still has less performance of the system than 4 conventional receiver antennas. At BER of 10-3 and from the comparison of Turbo coding rate which used in system, the code rate 1/3 had provided 0.24 dB coding gain from the code rate 1/2 in estimation of single-RF system. Then, for 2 and 4 conventional receiver antennas configuration, the code rate 1/3 had provided 2.8 dB and 2.1 dB coding gain from the code rate 1/2 in estimation channel respectively.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131968761","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253144
K. Sugiyanto
Microwave technology has been evaluated for improving wood permeability prior to timber processing. However, microwave application for other lignocellulosic materials from forest (i.e. bamboo and rattan) has not been studied intensively. This paper examines the possible use of microwave heating for bamboo and rattan. Bamboo modification was carried out in 60 kW microwave devices, while rattan modification was conducted in modified domestic microwave. Result shows microwave technology reduces bamboo's moisture content and enhances bamboo permeability using specifically design applicator for surface treatment. Temperatures were recorded on the bamboo surfaces followed by gradual temperature dissipation with increasing depth along the culm wall. Similarly, modified domestic microwave (1 kW) reduces rattan's moisture content significantly and improves rattan bending ability. Rapid and clean rattan drying potentially substitutes conventional rattan drying pretreatment. Bending ability improvement is useful for rattan furniture industries. In conclusion, microwave technology could be applied for bamboo and rattan processing with various powers and heating time to enhance processing ability.
{"title":"Microwave heating for lignocellulosic material","authors":"K. Sugiyanto","doi":"10.1109/ICRAMET.2017.8253144","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253144","url":null,"abstract":"Microwave technology has been evaluated for improving wood permeability prior to timber processing. However, microwave application for other lignocellulosic materials from forest (i.e. bamboo and rattan) has not been studied intensively. This paper examines the possible use of microwave heating for bamboo and rattan. Bamboo modification was carried out in 60 kW microwave devices, while rattan modification was conducted in modified domestic microwave. Result shows microwave technology reduces bamboo's moisture content and enhances bamboo permeability using specifically design applicator for surface treatment. Temperatures were recorded on the bamboo surfaces followed by gradual temperature dissipation with increasing depth along the culm wall. Similarly, modified domestic microwave (1 kW) reduces rattan's moisture content significantly and improves rattan bending ability. Rapid and clean rattan drying potentially substitutes conventional rattan drying pretreatment. Bending ability improvement is useful for rattan furniture industries. In conclusion, microwave technology could be applied for bamboo and rattan processing with various powers and heating time to enhance processing ability.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132950326","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253141
Javad Mahmoodi
This paper presents license plate (LP) detection and recognition of Iranian LP digits. The proposed method can be divided into four major steps which are preprocessing, digit segmentation, feature extraction and finally classification using naive Bayesian (NB) classifier. In the preprocessing step, the obtained vehicle images are converted to the binary format based on a proposed threshold value. In the digit segmentation step, the LP digits are extracted from the image based on connected component labeling and some extracted characteristics of LP digits. In the feature extraction step, the self-organizing feature maps (SOFM) is used. In the classification step, the digits are recognized by a NB classifier which its performance is compared with a K-NN classifier. Various images in different conditions were used to test the proposed algorithm and experimental results demonstrated its robustness.
{"title":"Digit recognition of Iranian license plate based on SOFM and naive Bayesian classifier","authors":"Javad Mahmoodi","doi":"10.1109/ICRAMET.2017.8253141","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253141","url":null,"abstract":"This paper presents license plate (LP) detection and recognition of Iranian LP digits. The proposed method can be divided into four major steps which are preprocessing, digit segmentation, feature extraction and finally classification using naive Bayesian (NB) classifier. In the preprocessing step, the obtained vehicle images are converted to the binary format based on a proposed threshold value. In the digit segmentation step, the LP digits are extracted from the image based on connected component labeling and some extracted characteristics of LP digits. In the feature extraction step, the self-organizing feature maps (SOFM) is used. In the classification step, the digits are recognized by a NB classifier which its performance is compared with a K-NN classifier. Various images in different conditions were used to test the proposed algorithm and experimental results demonstrated its robustness.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126163947","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253154
C. Chairunissa, T. Arslan
In this research project, a novel concept of integration of microwave gas sensing into industrial wireless sensor network is introduced. It is proposed that the antenna of the wireless sensor node can be made dual-function, where the antenna does not utilize the microwave signal only to transmit and receive data, but also to detect the presence of gas. Therefore, the primary objective of the research project is to design a dual-function antenna that meets both the relevant requirements of an industrial sensor network and a gas sensor. Relevant industrial specifications have been studied and additional specifications to yield feasible implementation has been deduced. A novel design of the antenna, a stacked disk hybrid monopole-dielectric resonator antenna, is proposed to meet the specifications.
{"title":"Design of a dual-function antenna for microwave gas detection and communication in industrial wireless sensor network applications","authors":"C. Chairunissa, T. Arslan","doi":"10.1109/ICRAMET.2017.8253154","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253154","url":null,"abstract":"In this research project, a novel concept of integration of microwave gas sensing into industrial wireless sensor network is introduced. It is proposed that the antenna of the wireless sensor node can be made dual-function, where the antenna does not utilize the microwave signal only to transmit and receive data, but also to detect the presence of gas. Therefore, the primary objective of the research project is to design a dual-function antenna that meets both the relevant requirements of an industrial sensor network and a gas sensor. Relevant industrial specifications have been studied and additional specifications to yield feasible implementation has been deduced. A novel design of the antenna, a stacked disk hybrid monopole-dielectric resonator antenna, is proposed to meet the specifications.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120944682","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253173
W. Gharibi, M. Aalsalem, W. Z. Khan, N. Armi, Wade Ghribi
Wireless sensor networks (WSNs) and Internet of things (IoT) are playing an increasingly important role in our daily lives. In particular, WSNs and IoT are crucial for observing and monitoring physical phenomena that are critical in environmental, industrial, and scientific applications. Nowadays, a huge number of oil infrastructure including pipelines and refineries need to be continuously monitored by using several parameters such as temperature, pressure, and vibration to prevent accidents and other malfunctioning and to keep track of the overall production system. In this paper, we study WSNs in depth and propose a reliable, secure, and scalable sensing system that focuses on monitoring oil and gas infrastructures.
{"title":"Monitoring gas and oil fields with reliable wireless sensing and Internet of Things","authors":"W. Gharibi, M. Aalsalem, W. Z. Khan, N. Armi, Wade Ghribi","doi":"10.1109/ICRAMET.2017.8253173","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253173","url":null,"abstract":"Wireless sensor networks (WSNs) and Internet of things (IoT) are playing an increasingly important role in our daily lives. In particular, WSNs and IoT are crucial for observing and monitoring physical phenomena that are critical in environmental, industrial, and scientific applications. Nowadays, a huge number of oil infrastructure including pipelines and refineries need to be continuously monitored by using several parameters such as temperature, pressure, and vibration to prevent accidents and other malfunctioning and to keep track of the overall production system. In this paper, we study WSNs in depth and propose a reliable, secure, and scalable sensing system that focuses on monitoring oil and gas infrastructures.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117128252","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 : 2017-10-01DOI: 10.1109/ICRAMET.2017.8253168
N. Nursam, P. N. Anggraini, Shobih, J. Hidayat
Monolithic dye-sensitized solar cells (DSSC) based on mesoporous titanium dioxide deposited on single conductive fluorine-doped tin oxide substrates have been developed. A titania photoactive layer, zirconia spacer, and porous carbon composite containing graphite as counter-electrode and catalytic layer were deposited through layer by layer process using industrially-adaptable method, i.e. screen printing technique. Our results demonstrated that the thickness of zirconia played an important role in determining the photoconversion efficiency of the constructed solar cells. Current-voltage measurements under simulated solar irradiation with an intensity of 0.5 sun showed that the optimized cell could achieve an open circuit voltage and short circuit current of 0.53 V and 45.64 mA, respectively, with an overall efficiency of 0.04 %. Although these figures are still lower compared to our previous cells that were fabricated using conventional sandwich structure, the monolithic DSSC fabricated in this work demonstrates great potential for further commercialization due to the significant reduction in the cost of conductive substrate.
{"title":"Low-cost monolithic dye-sensitized solar cells fabricated on single conductive substrate","authors":"N. Nursam, P. N. Anggraini, Shobih, J. Hidayat","doi":"10.1109/ICRAMET.2017.8253168","DOIUrl":"https://doi.org/10.1109/ICRAMET.2017.8253168","url":null,"abstract":"Monolithic dye-sensitized solar cells (DSSC) based on mesoporous titanium dioxide deposited on single conductive fluorine-doped tin oxide substrates have been developed. A titania photoactive layer, zirconia spacer, and porous carbon composite containing graphite as counter-electrode and catalytic layer were deposited through layer by layer process using industrially-adaptable method, i.e. screen printing technique. Our results demonstrated that the thickness of zirconia played an important role in determining the photoconversion efficiency of the constructed solar cells. Current-voltage measurements under simulated solar irradiation with an intensity of 0.5 sun showed that the optimized cell could achieve an open circuit voltage and short circuit current of 0.53 V and 45.64 mA, respectively, with an overall efficiency of 0.04 %. Although these figures are still lower compared to our previous cells that were fabricated using conventional sandwich structure, the monolithic DSSC fabricated in this work demonstrates great potential for further commercialization due to the significant reduction in the cost of conductive substrate.","PeriodicalId":257673,"journal":{"name":"2017 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126888337","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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