Indonesian Journal of Electrical Engineering and Computer Science
A wireless gigabit alliance (WiGig) is widely known for higher bandwidth which operates at 60GHz ... more A wireless gigabit alliance (WiGig) is widely known for higher bandwidth which operates at 60GHz unlicensed spectrum for super-fast data speed over short distances for millimeter-wave band application. This study offers an efficient, compact microstrip patch antenna for WiGig with a lesser return loss -50.45 dB (60 GHz). The gain and directivity of the proposed antenna are 13.01 dB and 13.42 dBi. It provides higher efficiency of around 91%. The proposed antenna also covers another mm-wave band that is at 95 GHz. The U.S. military uses electromagnetic radiation of 95 GHz as a non-lethal weapon. So, the anticipated antenna can be used for a miniaturized active denial system. The proposed antenna has a good gain, directivity, and efficiency for the multigigabits/s data rate. The aforesaid properties imply that it can be used for wireless personal area networks (WPAN) and wireless local area network (WLAN) and fifth-generation (5G) applications too.
International Journal of Electrical and Computer Engineering (IJECE), 2021
The use of unmanned aerial vehicle (UAV) has been increasing rapidly in the civilian and military... more The use of unmanned aerial vehicle (UAV) has been increasing rapidly in the civilian and military applications, because of UAV's high-performance communication with ground clients, especially for its intrinsic properties such as adaptive altitude, mobility, and flexibility. UAV deployment can be monitored and controlled through 5G wireless network as user equipment (UE) along with other devices. A highly directive microstrip patch antenna (MPA) could establish long-distance communication by overcoming air attenuation and reduce co-channel interference in the limited region if UAV uses a specifically dedicated band, which might enhance spatially reuse of the spectrum. Also, MPA is highly recommended for UAV because of its low weight, low cost, compact size, and flat shape. In this paper, we have designed a highly directive single-band 2×2 and 4×4 antenna array for 5.8 GHz and 28 GHz frequency respectively for UAV application in a focus to deploy UAV through 5G wireless network. H...
Most of the IoT applications require real time and secure exchange of information among connected... more Most of the IoT applications require real time and secure exchange of information among connected devices and hence, currently, security of communication protocols is becoming key topic of research. MQTT, a lightweight communication protocol, is used for real time communication between networks. Authors have reviewed numerous published researches on secure MQTT protocol for IoT networks and have discovered security loop holes of MQTT communication protocol that are needed to be addressed. This article proposes a secure and real time MQTT protocol by incorporating SSL certificate to MQTT broker for IoT applications without data loss. The research has been implemented in Raspberry Pi 3B system using Python 3.4.10 development platform along with Numpy 1.11.1 and scipy 0.18.0 (for mathematical analysis), paho-mqtt 1.5.0 (for MQTT publication/subscription), and Chromium (for displaying research outcome). The outcome of this research shows that the proposed MQTT protocol has tighten secur...
European Journal of Engineering Research and Science, 2020
In traditional farming, farmer has to visit the farming land regularly to measure the various env... more In traditional farming, farmer has to visit the farming land regularly to measure the various environmental parameters such as temperature, humidity, light intensity and soil moisture to cultivate the right crops at right time in right soil. Even though this traditional farming system have been used for years, the system is hectic and fail to prove high productivity rate as farmer usually unable to measure all the parameter accurately [1]. In contrast, greenhouse farming is a system where farmer cultivate crops in ecosystem environments where all environmental parameters are adjusted based on crops types. Automation in greenhouse is a method where farmer is able to monitor and control the greenhouse environment automatically from anywhere in the world any time [3]. In this paper, authors proposed an automated greenhouse monitoring and controlling system that incorporate various sensors such as temperature sensor, humidity sensor, light sensor and soil moisture sensor to collect poss...
2017 20th International Conference of Computer and Information Technology (ICCIT), 2017
Microwave communications enhance the scope of large bandwidth. On the other hand, cloud, rain and... more Microwave communications enhance the scope of large bandwidth. On the other hand, cloud, rain and some other environmental issues greatly introduce attenuation in microwave link. As Bangladesh is located in a subtropical region, Cloud causes rampant attenuation in microwave communication. For designing a microwave or satellite link, it is important to consider the effect of cloud attenuation. The dominance of cloud at Ku (12 and 14GHz), Ka (20 and 30GHz) and V (40 and 50GHz) bands are investigated in this paper. The investigation is also based on ITU cloud attenuation model. This paper considers 14 geographical stations to collect raw data of weather for a specific time period (1994–2013). Collected data are used to determine the cloud attenuation for different frequencies of Ku, Ka and V bands. The contour map is also designed for different bands of inaccessibility. The results show that the dominance of cloud attenuation is significantly occurred in the northern part of Bangladesh.
2018 International Conference on Innovations in Science, Engineering and Technology (ICISET), 2018
Real-time applications such as Voice, Video Conferencing, VOIP, HTTP etc. need to fulfill some cr... more Real-time applications such as Voice, Video Conferencing, VOIP, HTTP etc. need to fulfill some criteria of standards for the computer network. In order to fulfill those criteria, over the years, different single dynamic routing protocols, such as RIP, EIGRP, OSPF have been used. Every routing protocol has their advantages and disadvantages. In this paper, different routing protocols, such as RIP, EIGRP, and OSPF have been combined to utilize their advantages. OPNET modeler has been used as the simulation software. Different parameters, such as Convergence, Throughput, Jitter, Packet Delay Variation, End-to-End Delay, Traffic Dropped, Bandwidth Utilization etc. are selected as a simulation scenario. The experimental results demonstrate that integrating various routing protocol is showing the better performance than single routing protocol. Among all integrating routing protocols, the combination of EIGRP and OSPF, that is EIGRP/OSPF outperforms the most satisfactory performance for t...
Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signa... more Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signal processing and measurements. However, the problem is usual window based FIR filter design lies in its side lobes amplitudes that are higher than the requirement of application. We propose a modified Lanczos window function by heuristic by examining the Lanczos window, which has better performance like equiripple, minimum side lobe compared to the several commonly used windows. The proposed window has slightly larger main lobe width of the commonly used Hamming window, while featuring 5.1~18.5 dB smaller side lobe peak. The proposed modified Lanczos window maintains its maximum side lobe peak about -55.2~-51.9 dB compared to -39~-36.7 dB of Hamming window for M=10~14, while offering roughly equal main lobe width. Our simulated results also show significant performance upgrading of the proposed modified Lanczos window compared to the Kaiser, Gaussian, and Lanczos windows. The proposed modified Lanczos window also shows better performance than Dolph-Chebyshev window. Finally, the example of designed low pass FIR filter confirms the efficiency of the proposed modified Lanczos window.
Most of the IoT applications require real time and secure exchange of information among connected... more Most of the IoT applications require real time and secure exchange of information among connected devices and hence, currently, security of communication protocols is becoming key topic of research. MQTT, a lightweight communication protocol, is used for real time communication between networks. Authors have reviewed numerous published researches on secure MQTT protocol for IoT networks and have discovered security loop holes of MQTT communication protocol that are needed to be addressed. This article proposes a secure and real time MQTT protocol by incorporating SSL certificate to MQTT broker for IoT applications without data loss. The research has been implemented in Raspberry Pi 3B system using Python 3.4.10 development platform along with Numpy 1.11.1 and scipy 0.18.0 (for mathematical analysis), paho-mqtt 1.5.0 (for MQTT publication/subscription), and Chromium (for displaying research outcome). The outcome of this research shows that the proposed MQTT protocol has tighten secur...
European Journal of Engineering Research and Science
These instructions give you guidelines for preparing papers for An existence without electricity ... more These instructions give you guidelines for preparing papers for An existence without electricity can't be thought of since it turns into an integral part of human life. In a developing country, people use postpaid electricity for their own purposes. Be that as it may, they don't know the amount of electricity they have consumed and how much cost they have done likewise till they receive the consumption bill at the end of the month. Also, in prepaid meters, to see consumption details, people have to go in front of the meter. In this research, a system has been designed based on GSM technology to solve this problem. The prepaid meter has to be recharged; as a result, clients can use the electricity. The system alerts the client for any kind of emergency. Besides, when the client is away from the house, he can easily switch off the supply of electricity by sending an SMS. This project will support both society and country because it helps to reduce the wastage of electricity an...
European Journal of Engineering Research and Science
Smart home is a prime research interest among researchers around the globe due to the fact that i... more Smart home is a prime research interest among researchers around the globe due to the fact that it offers ample features to make people’s life effortless and efficient. People can lead their life smartly through the use of smart home technology [17]. There are numerous communication systems in both wired and wireless media exist that are used in smart home technology. However, not a single communication system itself can satisfy all the demands of secure, comfort and intelligent smart home system. Wireless communication is flexible, requires negligible number of instruments, cheap and easy to install but the key concerning issue for wireless communication system in smart home technology is the slow data rate. In contrast, wired communication provides better performance through the provision of higher data rate and uninterrupted connectivity; however, consumers have to pay substantial amount of payment for smart home services [3]. Therefore, it is essential for researchers to analyze...
An anti-collision algorithm provides a method for an RFID reader to identify multiple tags at the... more An anti-collision algorithm provides a method for an RFID reader to identify multiple tags at the same time. The query tree (QT) anti-collision algorithm based on the ISO 15693 standard is considered in this paper. This algorithm requires the reader to repeatedly send a request command containing a mask. Only tags whose unique identification numbers (UIDs) match this mask respond
2008 11th International Conference on Computer and Information Technology, 2008
Abstract In this paper, we study the effect of various concatenated forward error correction (FEC... more Abstract In this paper, we study the effect of various concatenated forward error correction (FEC) codes on the performance of a wireless orthogonal frequency division multiplexing (OFDM) system. In FEC concatenated channel code, the OFDM system incorporates Reed ...
Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signa... more Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signal processing and measurements. However, the problem is usual window based FIR filter design lies in its side lobes amplitudes that are higher than the requirement of application. We propose a modified Lanczos window function by heuristic by examining the Lanczos window, which has better performance like equiripple, minimum side lobe compared to the several commonly used windows. The proposed window has slightly larger main lobe width of the commonly used Hamming window, while featuring 5.1~18.5 dB smaller side lobe peak. The proposed modified Lanczos window maintains its maximum side lobe peak about -55.2~-51.9 dB compared to -39~-36.7 dB of Hamming window for M=10~14, while offering roughly equal main lobe width. Our simulated results also show significant performance upgrading of the proposed modified Lanczos window compared to the Kaiser, Gaussian, and Lanczos windows. The proposed mo...
The salient concern of this paper is to predict time-series data in a nonlinear fashion. By adopt... more The salient concern of this paper is to predict time-series data in a nonlinear fashion. By adopting Neuro-Fuzzy a model is proposed here with subtractive clustering algorithm to enhance the performance of Neuro-Fuzzy model. The results are thus compared with traditional Neuro-Fuzzy model which shows the proposed model assumes the system in a more simplified way.
In education, whilst e-learning has been playing a significant role over the last few years due t... more In education, whilst e-learning has been playing a significant role over the last few years due to its flexibility and remote-based education system, majority of courses are still relying upon traditional approaches of learning due to the lack of integrity and security of online based examinations and assessments in e-learning. As such, traditional approach of examination system is considered superior method than e-examination but it has few limitations in its tag such as excessive number of physical resources (invigilators) is required and high occurrences of malpractices by the students during exam. The objective of this paper is to develop a framework for traditional pen and paper based examination system where number of invigilators will substantially be reduced and malpractices by the students during exam will be abolished. In order to implement the proposed examination system, educational institutions are required to preserve a database using Parallax Data Acquisition tool (PL...
Indonesian Journal of Electrical Engineering and Computer Science
A wireless gigabit alliance (WiGig) is widely known for higher bandwidth which operates at 60GHz ... more A wireless gigabit alliance (WiGig) is widely known for higher bandwidth which operates at 60GHz unlicensed spectrum for super-fast data speed over short distances for millimeter-wave band application. This study offers an efficient, compact microstrip patch antenna for WiGig with a lesser return loss -50.45 dB (60 GHz). The gain and directivity of the proposed antenna are 13.01 dB and 13.42 dBi. It provides higher efficiency of around 91%. The proposed antenna also covers another mm-wave band that is at 95 GHz. The U.S. military uses electromagnetic radiation of 95 GHz as a non-lethal weapon. So, the anticipated antenna can be used for a miniaturized active denial system. The proposed antenna has a good gain, directivity, and efficiency for the multigigabits/s data rate. The aforesaid properties imply that it can be used for wireless personal area networks (WPAN) and wireless local area network (WLAN) and fifth-generation (5G) applications too.
International Journal of Electrical and Computer Engineering (IJECE), 2021
The use of unmanned aerial vehicle (UAV) has been increasing rapidly in the civilian and military... more The use of unmanned aerial vehicle (UAV) has been increasing rapidly in the civilian and military applications, because of UAV's high-performance communication with ground clients, especially for its intrinsic properties such as adaptive altitude, mobility, and flexibility. UAV deployment can be monitored and controlled through 5G wireless network as user equipment (UE) along with other devices. A highly directive microstrip patch antenna (MPA) could establish long-distance communication by overcoming air attenuation and reduce co-channel interference in the limited region if UAV uses a specifically dedicated band, which might enhance spatially reuse of the spectrum. Also, MPA is highly recommended for UAV because of its low weight, low cost, compact size, and flat shape. In this paper, we have designed a highly directive single-band 2×2 and 4×4 antenna array for 5.8 GHz and 28 GHz frequency respectively for UAV application in a focus to deploy UAV through 5G wireless network. H...
Most of the IoT applications require real time and secure exchange of information among connected... more Most of the IoT applications require real time and secure exchange of information among connected devices and hence, currently, security of communication protocols is becoming key topic of research. MQTT, a lightweight communication protocol, is used for real time communication between networks. Authors have reviewed numerous published researches on secure MQTT protocol for IoT networks and have discovered security loop holes of MQTT communication protocol that are needed to be addressed. This article proposes a secure and real time MQTT protocol by incorporating SSL certificate to MQTT broker for IoT applications without data loss. The research has been implemented in Raspberry Pi 3B system using Python 3.4.10 development platform along with Numpy 1.11.1 and scipy 0.18.0 (for mathematical analysis), paho-mqtt 1.5.0 (for MQTT publication/subscription), and Chromium (for displaying research outcome). The outcome of this research shows that the proposed MQTT protocol has tighten secur...
European Journal of Engineering Research and Science, 2020
In traditional farming, farmer has to visit the farming land regularly to measure the various env... more In traditional farming, farmer has to visit the farming land regularly to measure the various environmental parameters such as temperature, humidity, light intensity and soil moisture to cultivate the right crops at right time in right soil. Even though this traditional farming system have been used for years, the system is hectic and fail to prove high productivity rate as farmer usually unable to measure all the parameter accurately [1]. In contrast, greenhouse farming is a system where farmer cultivate crops in ecosystem environments where all environmental parameters are adjusted based on crops types. Automation in greenhouse is a method where farmer is able to monitor and control the greenhouse environment automatically from anywhere in the world any time [3]. In this paper, authors proposed an automated greenhouse monitoring and controlling system that incorporate various sensors such as temperature sensor, humidity sensor, light sensor and soil moisture sensor to collect poss...
2017 20th International Conference of Computer and Information Technology (ICCIT), 2017
Microwave communications enhance the scope of large bandwidth. On the other hand, cloud, rain and... more Microwave communications enhance the scope of large bandwidth. On the other hand, cloud, rain and some other environmental issues greatly introduce attenuation in microwave link. As Bangladesh is located in a subtropical region, Cloud causes rampant attenuation in microwave communication. For designing a microwave or satellite link, it is important to consider the effect of cloud attenuation. The dominance of cloud at Ku (12 and 14GHz), Ka (20 and 30GHz) and V (40 and 50GHz) bands are investigated in this paper. The investigation is also based on ITU cloud attenuation model. This paper considers 14 geographical stations to collect raw data of weather for a specific time period (1994–2013). Collected data are used to determine the cloud attenuation for different frequencies of Ku, Ka and V bands. The contour map is also designed for different bands of inaccessibility. The results show that the dominance of cloud attenuation is significantly occurred in the northern part of Bangladesh.
2018 International Conference on Innovations in Science, Engineering and Technology (ICISET), 2018
Real-time applications such as Voice, Video Conferencing, VOIP, HTTP etc. need to fulfill some cr... more Real-time applications such as Voice, Video Conferencing, VOIP, HTTP etc. need to fulfill some criteria of standards for the computer network. In order to fulfill those criteria, over the years, different single dynamic routing protocols, such as RIP, EIGRP, OSPF have been used. Every routing protocol has their advantages and disadvantages. In this paper, different routing protocols, such as RIP, EIGRP, and OSPF have been combined to utilize their advantages. OPNET modeler has been used as the simulation software. Different parameters, such as Convergence, Throughput, Jitter, Packet Delay Variation, End-to-End Delay, Traffic Dropped, Bandwidth Utilization etc. are selected as a simulation scenario. The experimental results demonstrate that integrating various routing protocol is showing the better performance than single routing protocol. Among all integrating routing protocols, the combination of EIGRP and OSPF, that is EIGRP/OSPF outperforms the most satisfactory performance for t...
Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signa... more Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signal processing and measurements. However, the problem is usual window based FIR filter design lies in its side lobes amplitudes that are higher than the requirement of application. We propose a modified Lanczos window function by heuristic by examining the Lanczos window, which has better performance like equiripple, minimum side lobe compared to the several commonly used windows. The proposed window has slightly larger main lobe width of the commonly used Hamming window, while featuring 5.1~18.5 dB smaller side lobe peak. The proposed modified Lanczos window maintains its maximum side lobe peak about -55.2~-51.9 dB compared to -39~-36.7 dB of Hamming window for M=10~14, while offering roughly equal main lobe width. Our simulated results also show significant performance upgrading of the proposed modified Lanczos window compared to the Kaiser, Gaussian, and Lanczos windows. The proposed modified Lanczos window also shows better performance than Dolph-Chebyshev window. Finally, the example of designed low pass FIR filter confirms the efficiency of the proposed modified Lanczos window.
Most of the IoT applications require real time and secure exchange of information among connected... more Most of the IoT applications require real time and secure exchange of information among connected devices and hence, currently, security of communication protocols is becoming key topic of research. MQTT, a lightweight communication protocol, is used for real time communication between networks. Authors have reviewed numerous published researches on secure MQTT protocol for IoT networks and have discovered security loop holes of MQTT communication protocol that are needed to be addressed. This article proposes a secure and real time MQTT protocol by incorporating SSL certificate to MQTT broker for IoT applications without data loss. The research has been implemented in Raspberry Pi 3B system using Python 3.4.10 development platform along with Numpy 1.11.1 and scipy 0.18.0 (for mathematical analysis), paho-mqtt 1.5.0 (for MQTT publication/subscription), and Chromium (for displaying research outcome). The outcome of this research shows that the proposed MQTT protocol has tighten secur...
European Journal of Engineering Research and Science
These instructions give you guidelines for preparing papers for An existence without electricity ... more These instructions give you guidelines for preparing papers for An existence without electricity can't be thought of since it turns into an integral part of human life. In a developing country, people use postpaid electricity for their own purposes. Be that as it may, they don't know the amount of electricity they have consumed and how much cost they have done likewise till they receive the consumption bill at the end of the month. Also, in prepaid meters, to see consumption details, people have to go in front of the meter. In this research, a system has been designed based on GSM technology to solve this problem. The prepaid meter has to be recharged; as a result, clients can use the electricity. The system alerts the client for any kind of emergency. Besides, when the client is away from the house, he can easily switch off the supply of electricity by sending an SMS. This project will support both society and country because it helps to reduce the wastage of electricity an...
European Journal of Engineering Research and Science
Smart home is a prime research interest among researchers around the globe due to the fact that i... more Smart home is a prime research interest among researchers around the globe due to the fact that it offers ample features to make people’s life effortless and efficient. People can lead their life smartly through the use of smart home technology [17]. There are numerous communication systems in both wired and wireless media exist that are used in smart home technology. However, not a single communication system itself can satisfy all the demands of secure, comfort and intelligent smart home system. Wireless communication is flexible, requires negligible number of instruments, cheap and easy to install but the key concerning issue for wireless communication system in smart home technology is the slow data rate. In contrast, wired communication provides better performance through the provision of higher data rate and uninterrupted connectivity; however, consumers have to pay substantial amount of payment for smart home services [3]. Therefore, it is essential for researchers to analyze...
An anti-collision algorithm provides a method for an RFID reader to identify multiple tags at the... more An anti-collision algorithm provides a method for an RFID reader to identify multiple tags at the same time. The query tree (QT) anti-collision algorithm based on the ISO 15693 standard is considered in this paper. This algorithm requires the reader to repeatedly send a request command containing a mask. Only tags whose unique identification numbers (UIDs) match this mask respond
2008 11th International Conference on Computer and Information Technology, 2008
Abstract In this paper, we study the effect of various concatenated forward error correction (FEC... more Abstract In this paper, we study the effect of various concatenated forward error correction (FEC) codes on the performance of a wireless orthogonal frequency division multiplexing (OFDM) system. In FEC concatenated channel code, the OFDM system incorporates Reed ...
Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signa... more Attenuated side lobe peak in the range of around ~-45dB is required in many applications of signal processing and measurements. However, the problem is usual window based FIR filter design lies in its side lobes amplitudes that are higher than the requirement of application. We propose a modified Lanczos window function by heuristic by examining the Lanczos window, which has better performance like equiripple, minimum side lobe compared to the several commonly used windows. The proposed window has slightly larger main lobe width of the commonly used Hamming window, while featuring 5.1~18.5 dB smaller side lobe peak. The proposed modified Lanczos window maintains its maximum side lobe peak about -55.2~-51.9 dB compared to -39~-36.7 dB of Hamming window for M=10~14, while offering roughly equal main lobe width. Our simulated results also show significant performance upgrading of the proposed modified Lanczos window compared to the Kaiser, Gaussian, and Lanczos windows. The proposed mo...
The salient concern of this paper is to predict time-series data in a nonlinear fashion. By adopt... more The salient concern of this paper is to predict time-series data in a nonlinear fashion. By adopting Neuro-Fuzzy a model is proposed here with subtractive clustering algorithm to enhance the performance of Neuro-Fuzzy model. The results are thus compared with traditional Neuro-Fuzzy model which shows the proposed model assumes the system in a more simplified way.
In education, whilst e-learning has been playing a significant role over the last few years due t... more In education, whilst e-learning has been playing a significant role over the last few years due to its flexibility and remote-based education system, majority of courses are still relying upon traditional approaches of learning due to the lack of integrity and security of online based examinations and assessments in e-learning. As such, traditional approach of examination system is considered superior method than e-examination but it has few limitations in its tag such as excessive number of physical resources (invigilators) is required and high occurrences of malpractices by the students during exam. The objective of this paper is to develop a framework for traditional pen and paper based examination system where number of invigilators will substantially be reduced and malpractices by the students during exam will be abolished. In order to implement the proposed examination system, educational institutions are required to preserve a database using Parallax Data Acquisition tool (PL...
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