Bachelor of Electronic and Telecommunication Engineering (ETE)
Permanent URI for this collectionhttp://dspace.iiuc.ac.bd/handle/88203/296
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Item Design and Evaluation of 20Gbps Inter Satellite Optical Wireless Communication System for improved distance and performance(Department of Electronic and Telecommunication Engineering, 2019-09) Faisal, Mohammad; Noman, Kazi Ishtiak HasanIn this present day world, satellite innovation plays a significant role. It is necessary to be sent data which obtained from the different orbits of satellites. So, it is required to have a link between the satellites to send these data. Hence, Inter satellite Optical Wireless Communication (Is-OWC) approach arises. Is-OWC system is high, small size, bandwidth, and light weight, low power and low cost and is therefore chosen over existing microwave satellite systems for reaching in space in the future. However the system has various limitations such as attenuations due to climate conditions, glimmers which limit its performance and diminishes its accessibility.The system also has trade-offs in the efficient design for higher distance coverage with better performance. In this paper, a 20 Gbs Is-OWC system with improved performance and longer distance is introduced. The proposed system is designed and evaluated using Optisystem Software 16 version. The proposed system provides better performance of Q factor and BER for the distance of 20,000 km. The distance is improved by using optical amplifier in the transmitter.Item Investigation on Wind Power Generation for Dhaka Chittagong Highway Based on Vertical Turbine(Department of Electronic and Telecommunication Engineering, 2019-10) Billa, Md.Bakey; Shawon, Md. Omar FarukWind power or wind energy is the use of air flow through wind turbines to provide the mechanical power to turn electrical generators and traditionally do other work. Wind power is a sustainable and renewable alternative for burning fossil fuels, and has much less effect on the environment. Electrical energy demand has been continuously increasing. Power generation using wind turbines is becoming viable solution as there is a demand for cleaner energy sources. Vertical axis wind turbines (VAWTs) are more efficient than the horizontal axis wind turbines (HAWTs) for low wind speed applications because of their ability to capture wind flowing from any direction. Therefore, VAWT systems are more suitable for residential and urban applications as they are universally adaptable. Major limitation observed in VAWT is high drag and turbulent force produced by the blade. In this thesis we are utilizing the air force that is generated due to vehicle velocity in Dhaka-Chittagong highway. We are using NACA-2424 as airfoil. NACA 2424 airfoil is selected and analyzed within the required range of Reynolds numbers and wind speeds in Q-Blade software. It is found that the power output is 100W at wind speed of 6 m/s. The estimated price per turbine is approximately 30500 takas only.Item An Ultra-compact Multiband Antenna for 5G massive MIMO Applications Below 6 GHz(Department of Electronic and Telecommunication Engineering, 2010) Razin, Kazi Fatin IntesarIn this paper, we have designed a compact antenna for massive MIMO applications. The design has been carried out using various parameters such as left-hand tweak and right-hand tweak. The simulations were carried out with different hands simultaneously. The design and simulation of the proposed MIMO antenna are performed in the CST Studio Suite. The antenna is designed at an operational frequency of 2.6 GHz with a dielectric substrate and a conducting ground plane (W×L=19×38.2 mm2). The material of the substrate is FR-4 (lossy), with a relative permittivity of 4.3, a height of 1.6 mm, and a loss tangent of 0.025. The material of the ground plane is copper (annealed) with a thickness (t) of 0.035 mm, and the ground plane is cut into a smaller one to achieve a broader bandwidth. The optimized dimensions of the antenna are Wp=17.17 mm and Lp=22.13 mm. The width of the feedline (Flow) connected to the patch is 2.42 mm, and the length (Fl) is 14.93 mm.Item Design and Implementation of a Home Automation System Using IoT(Department of Electronic and Telecommunication Engineering, 2019-10) Ziaul Abedin Tanvir, T153026; Anwarul Ashadozzaman Nur Sohag, T153040Design and Implementation of a Home Automation System Using IoT Home Automation System gains popularity due to communication technology advancement. Smart home is one of the Internet of Things applications that facilitates the control of home appliances over the Internet using automation system. This paper proposes a low-cost Wi-Fi based automation system for Smart Home in order to monitor and control home appliances remotely using IoT based application. An Arduino Mega microcontroller provided with Wi-Fi module is utilized to build the automation system. In addition, several sensors are used to monitor the temperature, humidity and motion in home. A relay board is exploited to connect the home automation system with home under controlled appliances. The proposed automation system can easily and efficiently control the electrical appliances via Wi-Fi. This project proposes a low cost, secure, universally accessible, auto-configurable, remotely controlled solution. The approach discussed in the paper is original and Home Automation System achieved the mark to control home appliances remotely using the Wi-Fi technology to connect system parts, satisfying user needs and requirements. Wi Fi technology capable solution Home Automation System proved to be controlled remotely, provide home security and it is low cost as compared to the previous systems. The system design and architecture were discussed, and prototype presents the basic level of home appliance control and remote monitoring Home Automation System been implemented. Finally, the proposed system is better from the scalability and flexibility point of view than the commercially available home automation systems. Home Automation System gains popularity due to communication technology advancement.Item Design and Evaluation of 20Gbps Inter Satellite Optical Wireless Communication System for improved distance and performance(Department of Electronic and Telecommunication Engineering, 2019-09) Mohammad Faisal, T151022; Kazi Ishtiak Hasan Noman, T151009In this present day world, satellite innovation plays a significant role. It is necessary to be sent data which obtained from the different orbits of satellites. So, it is required to have a link between the satellites to send these data. Hence, Inter satellite Optical Wireless Communication (Is-OWC) approach arises. Is-OWC system is high, small size, bandwidth, and light weight, low power and low cost and is therefore chosen over existing microwave satellite systems for reaching in space in the future. However the system has various limitations such as attenuations due to climate conditions, glimmers which limit its performance and diminishes its accessibility.The system also has trade-offs in the efficient design for higher distance coverage with better performance. In this paper, a 20 Gbs Is-OWC system with improved performance and longer distance is introduced. The proposed system is designed and evaluated using Optisystem Software 16 version. The proposed system provides better performance of Q factor and BER for the distance of 20,000 km. The distance is improved by using optical amplifier in the transmitterItem Investigation on Wind Power Generation for Dhaka Chittagong Highway Based on Ve(Department of Electronic and Telecommunication Engineering, 2019-10) Bakey Billa, T-151010; Omar Faruk Shawon, T151039Investigation on Wind Power Generation for Dhaka Chittagong Highway Based on Ve Wind power or wind energy is the use of air flow through wind turbines to provide the mechanical power to turn electrical generators and traditionally do other work. Wind power is a sustainable and renewable alternative for burning fossil fuels, and has much less effect on the environment. Electrical energy demand has been continuously increasing. Power generation using wind turbines is becoming viable solution as there is a demand for cleaner energy sources. Vertical axis wind turbines (VAWTs) are more efficient than the horizontal axis wind turbines (HAWTs) for low wind speed applications because of their ability to capture wind flowing from any direction. Therefore, VAWT systems are more suitable for residential and urban applications as they are universally adaptable. Major limitation observed in VAWT is high drag and turbulent force produced by the blade. In this thesis we are utilizing the air force that is generated due to vehicle velocity in Dhaka-Chittagong highway. We are using NACA-2424 as airfoil. NACA 2424 airfoil is selected and analyzed within the required range of Reynolds numbers and wind speeds in Q-Blade software. It is found that the power output is 100W at wind speed of 6 m/s. The estimated price per turbine is approximately 30500 takas onlyItem Design and Simulation of a Wearable Micro strip Patch Antenna for Healthcare Monitoring Applications(Department of Electronic and Telecommunication Engineering, IIUC, 19-10) Mamun, Sultan Shah; Majumder, Md.Qudrat-E-AlahiItem DESIGN AND SIMULATION OF MICRO STRIP PATCH ANTENNAS FOR 5G WIRELESS COMMUNICATION(Department of Electronic and Telecommunication Engineering, IIUC, 19-10) Soliman, Md Mohiuddin; Hakim, Mohammad LutfulItem Study and Analysis of the Radiation Effects of the Cellphone, BTS Tower and Local Wi-Fi Router on Human Body(Department of Electronic and Telecommunication Engineering, IIUC, 19-10) Islam, Syed Mainul; Bhattacharjee, Shashwata; Azim, Md. AnwarulWe are regularly in contact with electromagnetic radiation in our daily life. From the radiation produced by mobile phone to that derived from X-ray check-ups, electromagnetic waves appear to be present in current standard of living. In the electromagnetic spectrum, higher frequency has taken great attention for wireless communication with better efficiency. But as much as we like the availability of higher data rate, it comes at a price of increased vulnerability of health hazards. A summary of all non-ionizing health effects has been compiled and an analytical discussion on it due to long term exposure to radiofrequency radiation. In this work an analysis of less hazardous manipulative safe distance between individuals and wireless devices such as- BTS antennas and WIFI routers based on calculating Specific Absorption Rate (SAR) on human body at different distances from BTS and WIFI routers is proposed. Finally, different safety distance for individuals for different WIFI router and different BTS antenna types are proposed in this research.Item A Network infrastructure for Smart Home(Department of Electronic and Telecommunication Engineering, IIUC, 19-09) Mohiuddin, Talha Misbah; Riyad, Md. Kamrul HassanAbstract There are uncertainties with regard to which network technologies will remain current and adaptable to emerging changes in Smart Home requirements. This research is based on using the existing and available network technologies for Smart Homes. In particular, it used CSMA network and Wifi Network based on IEEE 802.11ac standard. It is expected that a usual home has to upgrade the infrastructural network to fully upgrade into Smart home. So, the focus is to make a building design, based on Bangladesh’s prospective and use CSMA and WiFi network individually in simulation.