• Image recovery of inaccessible rough surfaces profiles having impedance boundary condition 

  Sefer, Ahmet; Yapar, Ali (IEEE, 2022)

  This letter addresses a reconstruction algorithm of locally rough inaccessible surface profiles via the knowledge of the scattered field data under the consideration of the impedance boundary condition (IBC). To this aim, ...

• Reconstruction algorithm for impenetrable rough surface profile under Neumann boundary condition 

  Sefer, Ahmet; Yapar, Ali (Taylor and Francis Ltd., 2021-11)

  In this paper, an algorithm to reconstruct one-dimensional impenetrable rough surface from the knowledge of scattering field is presented. The rough surface is considered as locally perturbed and the scattering field data ...

• Channel modeling and characterization for VLC-based medical body sensor networks: trends and challenges 

  Dönmez, Barış; Mitra, Rangeet; Miramirkhani, Farshad (IEEE, 2021-11-15)

  Optical Wireless Communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers, i.e., visible, Infrared (IR), and Ultraviolet (UV) bands. In this paper, we focus on indoor ...

• A novel biometric identification system based on fingertip electrocardiogram and speech signals 

  Güven, Gökhan; Güz, Ümit; Gürkan, Hakan (Elsevier Inc., 2022-03)

  In this research work, we propose a one-dimensional Convolutional Neural Network (CNN) based biometric identification system that combines speech and ECG modalities. The aim is to find an effective identification strategy ...

• When to pull data for minimum age penalty 

  Yavaşcan, Orhan Tahir; Ceran, Elif Tuğçe; Cakir, Zeynep; Uysal, Elif; Kaya, Onur (IEEE, 2021-10-18)

  A communication receiver that wants to pull data from a remote sensor by exploiting wireless energy transfer is considered. The receiver has a long-term average energy budget for this operation, and its goal is to keep the ...

• Comparative performance evaluation of VLC, LTE and WLAN technologies in indoor environments 

  Zeshan, Arooba; Karbalayghareh, Mehdi; Miramirkhani, Farshad; Uysal, Murat; Baykaş, Tunçer (IEEE, 2021-05-24)

  Recent years have seen an exponential rise in the demand for indoor wireless connections that have driven future generation networks to aim for higher data rates with extended coverage and affordable rates. The two most ...

• Effect of scattering phase function on underwater visible light communication channel models 

  Miramirkhani, Farshad; Karbalayghareh, Mehdi; Uysal, Murat (Elsevier Ltd, 2021-10)

  Non-sequential ray tracing simulations are commonly employed to model underwater visible light communication (VLC) channels. The accuracy of such simulations highly depends on how well the optical properties of water (i.e., ...

• A Fractional-Order Transitional Butterworth-Butterworth Filter and its experimental validation 

  Mahata, Shibendu; Herencsar, Norbert; Kubanek, David; Kar, Rajib; Mandal, Durbadal; Göknar, İzzet Cem (IEEE, 2021)

  This paper introduces the generalization of the classical Transitional Butterworth-Butterworth Filter (TBBF) to the Fractional-Order (FO) domain. Stable rational approximants of the FO-TBBF are optimally realized. Several ...

• Circuits and Systems in Turkey [CAS in the World] 

  Yarman, Bekir Sıddık Binboğa; Göknar, İzzet Cem (IEEE, 2021)

  Reports on the activities of CASS chapters.

• IEEE CAS Activities In Central America And Mexico 

  Yarman, Bekir Sıddık Binboğa; Göknar, İzzet Cem (IEEE, 2021)

  Reports on CASS chapter activities in Central America and Mexico.

• A path loss model for link budget analysis of indoor visible light communications 

  Miramirkhani, Farshad (Istanbul Univ-Cerrahpasa, 2021-05)

  In the context of beyond 5G indoor communication systems, visible light communications (VLC) has emerged as a viable supplement for existing radio frequency based systems and as an enabler for high data rate communications. ...

• Co-array optimization of CMUT arrays for forward-looking IVUS 

  Tekeş, Coşkun; Karaman, Mustafa; Değertekin, Fahrettin Levent (IEEE, 2009-09)

  The ring annular array structure is a preferred configuration for implementing Forward-Looking IVUS (FLIVUS) catheters as it allows for volumetric imaging as well as use of a guidewire at the center. CMUT technology is ...

• Power control in the cognitive cooperative multiple access channel 

  Kaya, Onur; İşleyen, Murat (IEEE, 2012)

  We extend several encoding and decoding techniques from cooperative communications framework, to a cognitive radio system consisting of a primary user (PU) and a secondary user (SU), sending their messages to a common ...

• An endoscopie imaging system based on a two-dimensional CMUT array: real-time imaging results 

  Wygant, Ira O.; Zhuang, Xuefeng; Yeh, David T.; Vaithilingam, Srikant; Nikoozadeh, Amin; Oralkan, Ömer; Ergün, Arif Sanlı; Karaman, Mustafa; Khuri-Yakub, Butrus Thomas (IEEE, 2005)

  Real-time catheter-based ultrasound imaging tools are needed for diagnosis and image-guided procedures. The continued development of these tools is partially limited by the difficulty of fabricating two-dimensional array ...

• A study on RF/microwave tunable inductor topologies 

  Turgul, Volkan; Nesimoğlu, Tayfun; Yarman, Bekir Sıddık Binboğa (IEEE, 2013)

  Recently, tunable structures gained importance due to frequency agile microwave circuits such as tunable filters, matching networks, amplifiers, etc. that are needed to realize reconfigurable radios. Deploying tunable ...

• Sperm morphology analysis with CNN based algorithms 

  Şavkay, Osman Levent; Cesur, Evren; Yalçın, Müştak Erhan; Tavşanoğlu, Ahmet Vedat (IEEE Computer Society, 2014-08-29)

  In this paper Morphological Analysis part of our proposed computer-aided sperm analysis system (CASA) is simulated and the results beside the algorithm steps are presented. The morphology analysis is simply dealing with ...

• Least minimum symbol error rate based post-distortion for adaptive mobile VLC transmission with receiver selection 

  Miramirkhani, Farshad; Karbalayghareh, Mehdi; Mitra, Rangeet (Elsevier B.V., 2021-08)

  In the context of beyond-5G indoor communication systems, visible light communication (VLC) has emerged as a viable supplement for existing RF-based systems and as an enabler for high datarate communications. However, the ...

• Generic BER analysis of VLC channels impaired by 3D user-mobility and imperfect CSI 

  Reddy Sekhar, K.; Miramirkhani, Farshad; Mitra, Rangeet; Turlapaty, Anish Chand (Institute of Electrical and Electronics Engineers Inc., 2021-07)

  Visible light communications (VLC) has emerged as a high-speed, low-cost, and green supplement for the existing radio frequency (RF) based infrastructures. However, the performance of VLC based systems is found to degrade ...

• Low pass filter design with improved stop-band suppression and synthesis with transformer-free ladders 

  Yıldız, Serkan; Aksen, Ahmet; Kılınç, Sedat; Yarman, Bekir Sıddık Binboğa (John Wiley and Sons Inc, 2021-09)

  A new method to design transformer-free low pass (LP) ladder network with improved stop-band suppression performance is introduced. The parametric representation of back-end impedance of LP filter network is established ...

• FSRFT Based broadband double matching via passband extremums determination 

  Köprü, Ramazan (2018-07-23)

  Fast simplified real frequency technique (FSRFT) is a numerical solver used to solve microwave broadband doublematching (DM) circuit design problems in a much faster and effective manner. Recently, it has been reported ...

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