Md Sayzar Rahman Akash

@aiub.edu

Research Assistant at Center for Biomedical Research (CBR), D2A2I, AIUB
American International University-Bangladesh

Md Sayzar Rahman Akash


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https://researchid.co/sayzarrahman
Md Sayzar Rahman Akash received his M.Sc. and B.Sc. degrees in Electrical and Electronic Engineering from American International University-Bangladesh (AIUB), Dhaka, Bangladesh. He joined the Center for Biomedical Research (CBR), D2A2I, AIUB, as a Research Assistant. His research interests include Biomedical Signal Processing and analysis, Healthcare Systems, RF Signal and antenna Design, Nanotechnology, Robotics, Automation and IoT, and UAV Applications.

EDUCATION

M.Sc. & B.Sc. in EEE from American International University-Bangladesh (AIUB)

RESEARCH, TEACHING, or OTHER INTERESTS

Biomedical Engineering, Electrical and Electronic Engineering
8

Scopus Publications

26

Scholar Citations

3

Scholar h-index

1

Scholar i10-index

Scopus Publications

  • Design and Performance Analysis of mmWave FMCW MIMO Radar Antenna
    Md. Sayzar Rahman Akash, Rinku Basak, Mohammad Hasan Imam
    2025 2nd International Conference on Next Generation Computing Iot and Machine Learning Ncim 2025, 2025
  • IoT Based Low-Cost Azimuth-Elevation Dependent Dual Axis Solar Tracking & Monitoring System
    Md. Sayzar Rahman Akash, Tanver Shiddique, Md. Rifat Hazari, Mohammad Hasan Imam
    2025 International Conference on Electrical Computer and Communication Engineering Ecce 2025, 2025
    This research focuses on creating a highly accurate dual-axis solar tracker based on the azimuth-elevation angle and sharing data via the Internet of Things (IoT). The sun is the most powerful natural energy source, along with wind and water. Solar energy can be used by converting the solar energy of the sun into electrical energy via PV (photovoltaic) panels. The conversion efficiency of a fixed PV panel is low because the PV panel output is dependent on the amount of sunlight that strikes it directly. Fixed panels suffer from constant changes in sun position throughout the day and season. The solar panel should be perpendicular to the sun's rays to maximize efficiency. This can be accomplished by rotating the solar tracker with the sun throughout the day. The azimuth and elevation angles of the Sun determine its position. The world is currently entering a new era known as the Internet of Things, in which everything is available on the internet. Compared with static and single-axis trackers, the prototype demonstrates significant efficiency improvements while maintaining affordability, with a prototype cost of 3,500 BDT (30 USD). For larger systems (100 W–200 W), the cost ranges from 350 to 560 USD, providing a scalable solution for individual and community applications. This study highlights the potential of combining the IoT and renewable energy technologies to increase energy efficiency and sustainability, making this solar tracker precise, affordable, and accurate for tracking.
  • Automatic Oxygen Flow Regulated Non- Invasive Ventilator with Vital Sign Monitoring System
    Md. Sayzar Rahman Akash, Rethwan Faiz, Nuzat Nuary Alam, Mohammad Hasan Imam
    Proceedings 11th International Conference on Information Technology Computer and Electrical Engineering Icitacee 2024, 2024
    Mechanical ventilators emerged throughout the 19th century as the key tool to assist physicians & medical personnel to give effective life-saving treatment. Rapidly evolving situations like the COVID-19 pandemic led to a shortage of ventilators and oxygen supplies. On top of that, conventional ventilators don't come cheap, and ever since, the demand for medical oxygen supplies has skyrocketed; especially in least developed & developing countries. This paper proposes a non-invasive electromechanical ventilator design and hardware prototype that can save oxygen by controlling the inspiratory to expiratory time (I:E ratio) using an on-off or proportional solenoid valve. The proposed ventilator prototype utilizes the patient's oxygen saturation level (SpO2) and respiratory rate (RR) to determine the suitable I:e ratio. The SpO2 level is measured from a photoplethysmography (PPG) signal using a pulse oximeter sensor. The respiratory rate is obtained from the impedance pneumography technique using single channel two-terminal measurement. ECG data is also acquired from the same arrangement, which can record heart rate alongside a pulse oximeter. Besides these, the temperature sensor acquires body temperature information to monitor the patient's health status. The prototype is intended to be used as an in-house non-invasive ventilator which has an oxygen-saving capability with a vital sign monitoring system.
  • Design of a Low-Cost Portable Device for Respiratory Rate and Vital Sign Monitoring
    Md. Sayzar Rahman Akash, Md. Nahidul Haque Bhuiyan, Md. Rakib Hasan, Md. Risalat Bhuiyan, Md. Rakibul Hasan, et al.
    2024 IEEE International Conference on Biomedical Engineering Computer and Information Technology for Health Becithcon 2024, 2024
    This paper introduces a portable low-cost respiratory rate and vital sign monitoring device aimed at early symptom detection for respiratory diseases, including COPD, ARDS, asthma, COVID-19, lung inflammation, and infections. While access to effective and affordable healthcare is a global right, infrastructure limitations result in many untreated cases each year, a gap further highlighted during crises like the COVID-19 pandemic. The proposed device tackles these healthcare barriers with a technology-driven solution, combining multiple sensors to independently monitor vital signs and support informed decision-making for individuals considering medical attention. The primary objective of this paper is to foster proactive healthcare management, with applications extending beyond the pandemic to various health concerns. Monitoring key indicators—respiratory rate, heart rate, SpO2 levels, and body temperature, the device empowers at-risk individuals to maintain awareness of their health. In a test conducted with 13 volunteers aged 22 to 41, the device demonstrated an accuracy rate of 92.3%. At an estimated cost of ${\\$}$50, this portable monitoring tool offers a cost-effective, essential resource for early symptom detection, promoting a proactive approach to healthcare at home.
  • Design and Performance Evaluation of a Low-Cost Non-Invasive Electromechanical Ventilator with Feedback Mechanism
    Nuzat Nuary Alam, Rethwan Faiz, Md. Sayzar Rahman Akash, Tanver Shiddique, Fairuza Faiz, et al.
    IEEE Access, 2024
    Non-invasive ventilators (NIV) are widely utilized in managing both acute and chronic respiratory failure. Operating by delivering oxygenated air into the lungs through positive air pressure, they demand vigilant supervision and adjustment to prevent complications. Key challenges in NIV advancement include enhancing patient-device synchrony, monitoring capabilities, portability, affordability, and user-friendly operation with diverse modes to improve patient adherence. This study introduces an innovative non-invasive electromechanical ventilator that autonomously adjusts based on two types of real-time biofeedback data, providing respiratory support to individual patient needs. The system monitors two vital biofeedback signals—oxygen saturation (SpO2) and respiratory rate (RR)—to determine the optimal breathing mode and ceases operation once the patient’s vitals reach a safe range. To acquire biofeedback parameters, a MATLAB simulation model incorporating discrete wavelet transform was designed to extract RR from real-time photoplethysmography (PPG) signals. Comparing hardware-generated results with the simulation outputs yields a mean absolute percentage error (MAPE) of under 10%. Further analyses using Box-whisker and Bland-Altman methods demonstrate significant agreement between measured and simulated RR, particularly among younger demographics. This ventilator system achieves an average accuracy of more than 80% in delivering appropriate breathing patterns based on patient biofeedback. Designed for both home and clinic use, this portable ventilator provides relief from respiratory distress with an intuitive control interface that requires minimal medical expertise.
  • Contactless Human Vital Sign Monitoring System Using Millimeter Wave FMCW Radar for Healthcare Applications
    Md. Sayzar Rahman Akash, Simanta Saha, Md. Shakil Ahamed Sagor, Nazmus Sakib Nihal, Shilamoni Shaha Neir, et al.
    2024 IEEE International Conference on Biomedical Engineering Computer and Information Technology for Health Becithcon 2024, 2024
    During the COVID-19 pandemic, the need for contactless monitoring of people became very clear. To prevent the spread of the virus, physical interactions were minimized. As a result, many industries, including healthcare, are now focusing on touchless solutions. This research is driven by the need to tackle significant healthcare issues caused by contagious diseases, limited resources, and a shortage of healthcare workers. The paper discusses designing a contactless vital sign monitoring device that uses a 60 GHz FMCW radar and a thermal sensor to track respiratory rate, heart rate, and skin temperature. Heart sufferers and the elderly will benefit most from this device. It is appropriate for usage during sleep and in situations of viral illnesses due to its contactless nature. The device uses a thermal sensor to assess temperature and a 60 GHz radar to track the heart rate and the respiration rate. An Arduino 33 IoT processes data from the radar before sending it to display. For the age group 22 to 25, the device detected the heart rate accuracy of approximately 92.11% and a respiratory rate accuracy of about 89.88%. For the age group 45 to 79, the device shows a heart rate accuracy of around 96.05% and a respiratory rate accuracy of approximately 93.73%. These accuracy rates were determined from 90 data samples from 18 participants, with the accuracy derived from their Mean Absolute Percentage Error (MAPE%) values.
  • Elderly Patient Monitoring and Fall Detection Using mmWave FMCW Radar System
    Md. Sayzar Rahman Akash, Md. Nakib Shahria, Md. Abid Morshed, Shayeera Sharif Rodsee, Nasif Hannan, et al.
    2023 26th International Conference on Computer and Information Technology Iccit 2023, 2023
    Frequency Modulated Continuous Wave radar is nowadays considered as an important technology to monitor the health condition, fall condition and activities of elderly patients for their well-being and safety. Infrared Proximity (IP) and Passive Infrared (PIR) camera systems have traditionally been used for this purpose, but this system has crucial limitations, especially with regards to fast detection technique for such as preventing accident in the bathroom and indoor environment. The use of surveillance cameras not only struggles at nighttime detection but also can compromise patients' privacy, such as bathroom activities. FMCW radar technology can operate effectively in no-light conditions making them particularly suitable for nighttime monitoring by addressing privacy concerns. The principles of FMCW radar, signal processing algorithms and methods are discussed in this paper. Depending on the type of motion activity, a patient's returning radar signal will exhibit varying Doppler effect properties. This technology not only enhances patient care but also relieves healthcare providers and families from the need for constant in-room surveillance. FMCW radar technology bridges the gap between patient privacy concerns and the necessity for improving patient healthcare. This paper explores the utilization of FMCW radar for monitoring elderly patients and fall detection, with the goal of developing a privacy friendly app-based solution for real-time remote patient activity tracking.
  • Design of a Robotic Arm for Human Contactless Patient Monitoring Through Measuring Different Bio-signals
    Md. Sayzar Rahman Akash, Rafi Mushfic Fahim, Anika Islam, Abu Hasnat Real, Yeasir Arafat Anik, et al.
    2023 26th International Conference on Computer and Information Technology Iccit 2023, 2023
    The importance of human contactless monitoring was greatly felt during the COVID-19 pandemic. Physical interactions were reduced to maintain safety precautions against spreading the contagious diseases from person to person. Learning lessons from this, various industries, including the healthcare system, are now emphasizing human contactless or touchless alternative solutions. This research work is motivated by the need to address critical healthcare challenges posed by contagious diseases, limited resource availability, and an inadequate number of healthcare workers. The objective of this research work is to design and implement a 3D-printed robotic arm that is equipped with advanced sensors capable of measuring multiple non-invasive vital bio-signals. This robotic arm is equipped with multiple sensors, including a photoplethysmography (PPG) sensor, an electrocardiogram (ECG) sensor, an electrodermal activity (EDA) sensor, and a temperature sensor to measure various parameters such as cuffless blood pressure, heart rate, oxygen saturation (SpO2) from PPG and HRV analysis from ECG, sweat and stress detection, and skin temperature, while presenting the data on a display. One of the key aspects of this research work is its ability to obtain data from R-R intervals to analyze SDNN, SDANN, RMSSD, SDSD, pNN50, and pNN20, offering valuable insights into heart rate variability (HRV) for cardiovascular disease and mental health detection from the sensor implemented in the robotic arm. The hardware results are carefully compared with real-life data to validate the system's effectiveness. This research work is unique due to the implementation of a noble vital sign measurement technique, analysis, and decision-generating system that enhances its effectiveness in the healthcare system.

RECENT SCHOLAR PUBLICATIONS

  • Development of a PPG-based Low-cost Cuffless Continuous Blood Pressure Monitoring with Vital Sign Detection System
    MSR Akash, MRI Roman, I Alam, A Asif, M Farhad, MH Imam
    2025 IEEE International Conference on Biomedical Engineering, Computer and … , 2025
    2025
  • Design and Performance Analysis of mmWave FMCW MIMO Radar Antenna
    MSR Akash, R Basak, MH Imam
    2025 2nd International Conference on Next-Generation Computing, IoT and … , 2025
    2025
    Citations: 1
  • IoT Based Low-Cost Azimuth-Elevation Dependent Dual Axis Solar Tracking & Monitoring System
    MSR Akash, T Shiddique, MR Hazari, MH Imam
    2025 International Conference on Electrical, Computer and Communication … , 2025
    2025
    Citations: 2
  • Design of a Low-Cost Portable Device for Respiratory Rate and Vital Sign Monitoring
    MSR Akash, MNH Bhuiyan, MR Hasan, MR Bhuiyan, MR Hasan, ...
    2024 IEEE International Conference on Biomedical Engineering, Computer and … , 2024
    2024
    Citations: 1
  • Contactless Human Vital Sign Monitoring System Using Millimeter Wave FMCW Radar for Healthcare Applications
    MSR Akash, S Saha, MSA Sagor, NS Nihal, SS Neir, MH Imam
    2024 IEEE International Conference on Biomedical Engineering, Computer and … , 2024
    2024
    Citations: 5
  • Automatic Oxygen Flow Regulated Non-Invasive Ventilator with Vital Sign Monitoring System
    MSR Akash, R Faiz, NN Alam, MH Imam
    2024 11th International Conference on Information Technology, Computer, and … , 2024
    2024
    Citations: 2
  • Design and performance evaluation of a low-cost non-invasive electromechanical ventilator with feedback mechanism
    NN Alam, R Faiz, MSR Akash, T Shiddique, F Faiz, MH Imam
    IEEE Access, 1-12 , 2024
    2024
    Citations: 2
  • Elderly patient monitoring and fall detection using mmWave FMCW radar system
    MSR Akash, MN Shahria, MA Morshed, SS Rodsee, N Hannan, MH Imam
    2023 26th International Conference on Computer and Information Technology … , 2023
    2023
    Citations: 10
  • Design of a Robotic Arm for Human Contactless Patient Monitoring Through Measuring Different Bio-signals
    MSR Akash, RM Fahim, A Islam, AH Real, YA Anik, MH Imam
    2023 26th International Conference on Computer and Information Technology … , 2023
    2023
    Citations: 3

MOST CITED SCHOLAR PUBLICATIONS

  • Elderly patient monitoring and fall detection using mmWave FMCW radar system
    MSR Akash, MN Shahria, MA Morshed, SS Rodsee, N Hannan, MH Imam
    2023 26th International Conference on Computer and Information Technology … , 2023
    2023
    Citations: 10
  • Contactless Human Vital Sign Monitoring System Using Millimeter Wave FMCW Radar for Healthcare Applications
    MSR Akash, S Saha, MSA Sagor, NS Nihal, SS Neir, MH Imam
    2024 IEEE International Conference on Biomedical Engineering, Computer and … , 2024
    2024
    Citations: 5
  • Design of a Robotic Arm for Human Contactless Patient Monitoring Through Measuring Different Bio-signals
    MSR Akash, RM Fahim, A Islam, AH Real, YA Anik, MH Imam
    2023 26th International Conference on Computer and Information Technology … , 2023
    2023
    Citations: 3
  • IoT Based Low-Cost Azimuth-Elevation Dependent Dual Axis Solar Tracking & Monitoring System
    MSR Akash, T Shiddique, MR Hazari, MH Imam
    2025 International Conference on Electrical, Computer and Communication … , 2025
    2025
    Citations: 2
  • Automatic Oxygen Flow Regulated Non-Invasive Ventilator with Vital Sign Monitoring System
    MSR Akash, R Faiz, NN Alam, MH Imam
    2024 11th International Conference on Information Technology, Computer, and … , 2024
    2024
    Citations: 2
  • Design and performance evaluation of a low-cost non-invasive electromechanical ventilator with feedback mechanism
    NN Alam, R Faiz, MSR Akash, T Shiddique, F Faiz, MH Imam
    IEEE Access, 1-12 , 2024
    2024
    Citations: 2
  • Design and Performance Analysis of mmWave FMCW MIMO Radar Antenna
    MSR Akash, R Basak, MH Imam
    2025 2nd International Conference on Next-Generation Computing, IoT and … , 2025
    2025
    Citations: 1
  • Design of a Low-Cost Portable Device for Respiratory Rate and Vital Sign Monitoring
    MSR Akash, MNH Bhuiyan, MR Hasan, MR Bhuiyan, MR Hasan, ...
    2024 IEEE International Conference on Biomedical Engineering, Computer and … , 2024
    2024
    Citations: 1
  • Development of a PPG-based Low-cost Cuffless Continuous Blood Pressure Monitoring with Vital Sign Detection System
    MSR Akash, MRI Roman, I Alam, A Asif, M Farhad, MH Imam
    2025 IEEE International Conference on Biomedical Engineering, Computer and … , 2025
    2025