http://dspace.ewubd.edu:8080/handle/123456789/2479 Sat, 04 Apr 2026 15:12:38 GMT 2026-04-04T15:12:38Z http://dspace.ewubd.edu:8080/handle/123456789/2557 De-noising of Biomedical Signals (ECG and EEG) Chowdhury, Nowshin; Islam, Fariha Adaptive digital filter is actually an FIR or IIR filter where the coefficients of the filter are adjusted with the variation of input signal so that the difference between the noisy signal and the noise becomes minimum. In this project work we consider two biomedical signals ECG (electrocardiogram) and EEG (electroencephalogram) as the input signal of the adaptive filter provided they are contaminated by random noise. LMS (least mean square) algorithm is used to adjust the filter coefficients to de-noise both types of signal. The original signal, noisy signal, de-noised signal and error are shown graphically. This thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electronics and Telecommunication Engineering of East West University, Dhaka, Bangladesh Sun, 01 Jan 0008 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/123456789/2557 0008-01-01T00:00:00Z http://dspace.ewubd.edu:8080/handle/123456789/2556 Study on Routing Protocols in Wireless Ad-HOC Networks Mim, Nawshin Rahman; Mostafa, Monira In computer communications Ad-hoc network is a great concept. A mobile ad-hoc network (MANET) is an autonomous system of mobile nodes connected by wireless links. Mobile ad hoc networks are networks without fixed infrastructure. The mobile nodes perform both as a host and a router forwarding packets to other nodes. Ad-hoc networks has several characteristics which imposes new demands on routing protocols. The most important character is dynamic topology, which is a consequence of node mobility. Nodes can change position quite frequently which means that we need a routing protocol which adapts topology changes quickly. The nodes in adhoc networks can consists of laptops and personal digital assistance and other often very limited in resources such as CPU capacity, storage capacity ,battery power and bandwidth. This means that routing protocol should try to minimize control traffic, such as periodic updates messages. Instead the routing protocol should be reactive, thus only calculate routes upon a receiving update requests. Because of the nature of ad hoc networks, there are special demands for ad hoc routing protocols. The performance of MANET is related to the efficiency of the routing protocols in adapting to frequently changing network topology and link status. This thesis paper provides the different categories of routing protocols: Destination-sequenced Distance Vector (DSDV), Ad-hoc Ondemand Distance Vector (AODV) and Optimized Link State Routing (OLSR) and the causes of packet losses and their solutions. This thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electronics and Telecommunication Engineering of East West University, Dhaka, Bangladesh Sat, 01 Jan 0007 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/123456789/2556 0007-01-01T00:00:00Z http://dspace.ewubd.edu:8080/handle/123456789/2555 Name based Networking Architecture for IoT Devices Mahmud, Rifat Unlike the interaction methods between human and electronic devices, the devices will be the main users in the Internet of Things (IoT) ecosystem. Therefore, device-to-device (D2D) communication is expected to be an intrinsic part of the IoT arena. As expected, Device-to-Device (D2D) communication can enhance the network capacity and spectrum efficiency while sharing different genres of resources. The ability to gather relevant information in real time is the only key to leveraging the value of the IoT as such information will be transformed into intelligence, which will facilitate the creation of an intelligent environment. To make this environment more user-friendly and sustainable, the naming based scheme is proposed and probable outcomes are discussed. Ultimately, the quality of IoT promotes sharing of the infinite power with the users to communicate in-between and lead to a sustainable solution of D2D infrastructures. Considering the importance of the unique hierarchy of name based solution for D2D communication, we propose a study for standardization of work in the field of name based networking architecture for IoT devices. This thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electronics and communication Engineering of East West University, Dhaka, Bangladesh Sun, 01 Jan 0008 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/123456789/2555 0008-01-01T00:00:00Z http://dspace.ewubd.edu:8080/handle/123456789/2554 Developing a GUI using MATLAB in Detecting Brain Stroke from Ultrasonic Data. Ashrafullah, MD.; Sultana, Nasrin Brain is the main part of our body and brain stroke is severe in this day. In this research, we have implemented a method and design a graphical user interface (GUI) using MATLAB in detecting brain stroke from ultrasonic data. The ultrasonic data is chosen as it is not harmful as Magnetic Resonance Imaging (MRI). As it is known to us that carotid artery is the main path to flow the blood from heart to brain in our body. So the shrink of the wall of carotid artery through fat, cholesterol etc. is cause to change the normal level of ultrasonic velocity. In determining brain stroke through ultrasound knowledge, it is compulsory to acquire Doppler ultrasonic data from carotid artery. First, the ultrasonic displacement data obtained from the carotid artery is converted to velocity, and then the velocity data of several patients is loaded in the GUI which is developed through MATLAB. The loaded data will be accumulated in a folder. The standard velocity for the normal, abnormal and serious patients is then compared with the obtained patient ultrasonic velocity data through the GUI designed for this research. From the comparison it is possible to determine the patient’s condition whether he/she has the probability of brain stroke or not. The results show better than other methods and it is less harmful for the body. This thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electronics and communication Engineering of East West University, Dhaka, Bangladesh Sat, 01 Jan 0007 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/123456789/2554 0007-01-01T00:00:00Z