• Abnormal Colon Polyp Image Synthesis Using Conditional Adversarial Networks for Improved Detection Performance 

      Shin, Younghak; Qadir, Hemin Ali; Balasingham, Ilangko (Journal article; Peer reviewed, 2018)
      One of the major obstacles in automatic polyp detection during colonoscopy is the lack of labeled polyp training images. In this paper, we propose a framework of conditional adversarial networks to increase the number of ...
    • Automatic colon polyp detection using region based deep CNN and post learning approaches 

      Shin, Younghak; Qadir, Hemin Ali Qadir; Aabakken, Lars; Bergsland, Jacob; Balasingham, Ilangko (Journal article; Peer reviewed, 2018)
      Automatic image detection of colonic polyps is still an unsolved problem due to the large variation of polyps in terms of shape, texture, size, and color, and the existence of various polyp-like mimics during colonoscopy. ...
    • Blind Source Separation Using Temporal Correlation, Non-Gaussianity and Conditional Heteroscedasticity 

      Fouladi, Seyed Hamed; Balasingham, Ilangko; Kansanen, Kimmo; Ramstad, Tor Audun (Journal article; Peer reviewed, 2018)
      Independent component analysis separates latent sources from a linear mixture by assuming sources are statistically independent. In real world applications, hidden sources are usually non-Gaussian and have dependence among ...
    • Communication Aspects for a Measurement Based UWB in-Body to on-Body Channel 

      Floor, Pål Anders; Chavez-Santiago, Raul; Kim, Anna N.; Kansanen, Kimmo; Ramstad, Tor Audun; Balasingham, Ilangko (Journal article; Peer reviewed, 2019)
      A wireless capsule endoscopy (WCE) is a good option for the screening of the digestive system. To better facilitate detection of diseases at an early stage, gastroenterologists seek both higher frame rate and frame resolution ...
    • Enabling the Internet of Arctic Things with Freely-Drifting Small-Satellite Swarms 

      Palma, David; Birkeland, Roger (Journal article; Peer reviewed, 2018)
      The widespread deployment of Internet-capable devices, also known as the Internet of Things (IoT), reaches even the most remote areas of the planet, including the Arctic. However, and despite the vast scientific and economic ...
    • Evaluation of data telemetry for future leadless cardiac pacemaker 

      Bose, Pritam; Khaleghi, Ali; Mahmood, Salman; Albatat, Mohammad; Bergsland, Jacob; Balasingham, Ilangko (Journal article; Peer reviewed, 2019)
      Multi-node leadless pacemaker system overcomes the main limitations related to lead complications of the conventional cardiac pacemaker and will thus replace them in the near future. The multiple nodes of the technology ...
    • Galvanic Impulse Wireless Communication for Biomedical Implants 

      Noormohammadi, Reza; Khaleghi, Ali; Balasingham, Ilangko (Peer reviewed; Journal article, 2021)
      Wireless intra-body communication is a promising approach for providing efficient and secure connectivity for medical implants. The low power consumption of the electronics and the conductivity of the biological tissues ...
    • Molecular Communication Aspects of Potassium Intracellular Signaling in Cardiomyocytes 

      Lu, Pengfei; Veletic, Mladen; Bergsland, Jacob; Balasingham, Ilangko (Peer reviewed; Journal article, 2020)
      Cardiovascular diseases continue to be a leading cause of morbidity and mortality worldwide. Cardiomyocytes, as the elementary heart components, play a crucial role in maintaining a healthy heart by coordinating contractions ...
    • On Bit Error Probability and Power Optimization in Multihop Millimeter Wave Relay Systems 

      Chelli, Ali; Kansanen, Kimmo; Alouini, Mohamed-Slim; Balasingham, Ilangko (Journal article; Peer reviewed, 2018)
      5G networks are expected to provide gigabit data rate to users via the millimeter-wave (mmWave) communication technology. One of the major problems faced by mmWaves is that they cannot penetrate buildings. In this paper, ...
    • On Improving Recovery Performance in Multiple Measurement Vector Having Dependency 

      Fouladi, Seyyed Hamed; Balasingham, Ilangko (Journal article; Peer reviewed, 2019)
      The multiple measurement vector (MMV) problem is applicable in a wide range of applications such as photoplethysmography (PPG), remote PPG measurement, heart rate estimation, and directional arrival estimation of multiple ...
    • Patient specific strategies to enhance leadless pacemaker lifetime in synchronized dual chamber system 

      Palaksha, Deepak; Kansanen, Kimmo; Filippo, Ziglio; Bergsland, Jacob; Balasingham, Ilangko; Feuerstein, Delphine (Peer reviewed; Journal article, 2020)
      Dual chamber leadless pacemakers are multi-unit, battery-driven implants utilized for treating patients with bradyarrhythmias and sino-atrial dysfunctions. Establishing synchronization between the units provides coordination ...
    • Performance Assessment of Transient Signal Detection Methods and Superiority of Energy Criterion (EC) Method 

      Ismail S., Mohamed; Dalveren, Yaser; Kara, Ali (Peer reviewed; Journal article, 2020)
      Radio frequency fingerprinting (RFF) based on RF transients is one of the most effective techniques for improving wireless security. For an efficient RFF development, RF transients need to be accurately detected. However, ...
    • Plasmonic FET Terahertz Spectrometer 

      Liu, Xueqing; Ytterdal, Trond; Shur, Michael S. (Peer reviewed; Journal article, 2020)
      We show that Si MOSFETs, AlGaN/GaN HEMTs, AlGaAs/InGaAs HEMTs, and p-diamond FETs with feature sizes ranging from 20 nm to 130 nm could operate at room temperature as THz spectrometers in the frequency range from 110 GHz ...
    • Securing Next Generation Multinodal Leadless Cardiac Pacemaker System: A Proof of Concept in a Single Animal 

      Awan, Muhammad Faheem; Cordero, Rafael; Kansanen, Kimmo; Feuerstein, Delphine (Peer reviewed; Journal article, 2020)
      As the next generation of implanted medical devices for cardiac rhythm management moves towards multi-nodal leadless systems that do without the limitations of transvenous leads, new security threats arise from the wireless ...
    • Time Diversity Passive Time Reversal for Underwater Acoustic Communications 

      Siddiqui, Salman Ijaz; Dong, Hefeng (Journal article; Peer reviewed, 2019)
      Underwater acoustic signal propagation is greatly affected by source-receiver motion, surface variations, and water column variabilities, which make the underwater acoustic communications very challenging. A passive time ...
    • Use of the IQRF Technology in Internet-of-Things-Based Smart Cities 

      Bouzidi, Mohammed; Dalveren, Yaser; Alaya Cheikh, Faouzi; Derawi, Mohammad (Peer reviewed; Journal article, 2020)
      In recent years, there has been a growing interest in building smart cities based on the Internet of Things (IoT) technology. However, selecting a low-cost IoT wireless technology that enables low-power connectivity remains ...
    • Variational Mode Decomposition-Based Threat Classification for Fiber Optic Distributed Acoustic Sensing 

      Abufana, Saleh A.; Dalveren, Yaser; Aghnaiya, Alghannai; Kara, Ali (Peer reviewed; Journal article, 2020)
      In this study, a novel method is proposed to detect and classify the threats for fiber optic distributed acoustic sensing (DAS) systems. In the study, phase-sensitive optical time-domain reflectometry (phase-OTDR) is ...