Steven Freear

Publication Activity (10 Years)

Years Active: 2009-2022
Publications (10 Years): 9

Top Topics

Ultrasound Imaging

Spectrum Sensing

Fading Channels

Top Venues

IEEE Trans. Biomed. Circuits Syst.

IEEE Trans. Veh. Technol.

J. Commun. Networks

Publications

Ahmad Rezvanitabar, Gwangrok Jung, Coskun Tekes, Thomas M. Carpenter, David M. J. Cowell, Steven Freear, F. Levent Degertekin
Integrated Hybrid Sub-Aperture Beamforming and Time-Division Multiplexing for Massive Readout in Ultrasound Imaging. IEEE Trans. Biomed. Circuits Syst. 16 (5) (2022)
Asraf Mohamed Moubark, Zainab Alomari, Mohd Hairi Mohd Zaman, Mohd Asyraf Zulkifley, Sawal Hamid Md. Ali, Luzhen Nie, Steven Freear
Optimizing the lateral beamforming step for filtered-delay multiply and sum beamforming to improve active contour segmentation using ultrafast ultrasound imaging. Biomed. Signal Process. Control. 71 (Part) (2022)
Thomas M. Carpenter, David M. J. Cowell, Harry R. Clegg, James R. McLaughlan, Steven Freear
High-Power Gallium Nitride HIFU Transmitter With Integrated Real-Time Current and Voltage Measurement. IEEE Trans. Biomed. Circuits Syst. 15 (2) (2021)
Gwangrok Jung, Coskun Tekes, M. Wasequr Rashid, Thomas M. Carpenter, David M. J. Cowell, Steven Freear, F. Levent Degertekin, Maysam Ghovanloo
A Reduced-Wire ICE Catheter ASIC With Tx Beamforming and Rx Time-Division Multiplexing. IEEE Trans. Biomed. Circuits Syst. 12 (6) (2018)
Gwangrok Jung, M. Wasequr Rashid, Thomas M. Carpenter, Coskun Tekes, David M. J. Cowell, Steven Freear, F. Levent Degertekin, Maysam Ghovanloo
Single-chip reduced-wire active catheter system with programmable transmit beamforming and receive time-division multiplexing for intracardiac echocardiography. ISSCC (2018)
Paschalis C. Sofotasios, Alireza Bagheri, Theodoros A. Tsiftsis, Steven Freear, Ali Shahzadi, Mikko Valkama
A Comprehensive Framework for Spectrum Sensing in Non-Linear and Generalized Fading Conditions. IEEE Trans. Veh. Technol. 66 (10) (2017)
Paschalis C. Sofotasios, Mulugeta K. Fikadu, Sami Muhaidat, Steven Freear, George K. Karagiannidis, Mikko Valkama
Relay Selection Based Full-Duplex Cooperative Systems Under Adaptive Transmission. IEEE Wirel. Commun. Lett. 6 (5) (2017)
Seong Ki Yoo, Simon L. Cotton, Paschalis C. Sofotasios, Steven Freear
Shadowed Fading in Indoor Off-Body Communication Channels: A Statistical Characterization Using the κ - μ /Gamma Composite Fading Model. IEEE Trans. Wirel. Commun. 15 (8) (2016)
Alireza Bagheri, Paschalis C. Sofotasios, Theodoros A. Tsiftsis, Khuong Ho-Van, Michael I. Loupis, Steven Freear, Mikko Valkama
Energy detection based spectrum sensing over enriched multipath fading channels. WCNC (2016)
Paschalis C. Sofotasios, Steven Freear
A Generalized Non-Linear Composite Fading Model. CoRR (2015)
Paschalis C. Sofotasios, Mikko Valkama, Theodoros A. Tsiftsis, Yury A. Brychkov, Steven Freear, George K. Karagiannidis
Analytic Solutions to a Useful Marcum $Q{-}$Function Based Integral. CoRR (2015)
Khuong Ho-Van, Paschalis C. Sofotasios, George C. Alexandropoulos, Steven Freear
Bit error rate of underlay decode-and-forward cognitive networks with best relay selection. J. Commun. Networks 17 (2) (2015)
Thomas M. Carpenter, M. Wasequr Rashid, Maysam Ghovanloo, David M. J. Cowell, Steven Freear, F. Levent Degertekin
Time-division multiplexing for cable reduction in ultrasound imaging catheters. BioCAS (2015)
Paschalis C. Sofotasios, Steven Freear
Closed-Form Bounds for the Rice $Ie$-Function. CoRR (2015)
Paschalis C. Sofotasios, Steven Freear
Novel Expressions for the Rice $Ie{-}$Function and the Incomplete Lipschitz-Hankel Integrals. CoRR (2015)
Alireza Bagheri, Paschalis C. Sofotasios, Theodoros A. Tsiftsis, Ali Shahzadi, Steven Freear, Mikko Valkama
Area under ROC curve of energy detection over generalized fading channels. PIMRC (2015)
Paschalis C. Sofotasios, Steven Freear
On the $η-μ$/gamma and the $λ-μ$/gamma Composite Distributions. CoRR (2015)
Paschalis C. Sofotasios, Steven Freear
Tight Approximations for the Two Dimensional Gaussian $Q-$function. CoRR (2015)
Paschalis C. Sofotasios, Steven Freear
On the $κ$-$μ$/Gamma Generalized Multipath/ Shadowing Fading Distribution. CoRR (2015)
Paschalis C. Sofotasios, Steven Freear
Solutions to the Incomplete Toronto Function and Incomplete Lipschitz-Hankel Integrals. CoRR (2015)
Paschalis C. Sofotasios, Mikko Valkama, Theodoros A. Tsiftsis, Yury A. Brychkov, Steven Freear, George K. Karagiannidis
Analytic solutions to a Marcum Q-function-based integral and application in energy detection of unknown signals over multipath fading channels. CrownCom (2014)
Paschalis C. Sofotasios, Theodoros A. Tsiftsis, Yury A. Brychkov, Steven Freear, Mikko Valkama, George K. Karagiannidis
Analytic Expressions and Bounds for Special Functions and Applications in Communication Theory. IEEE Trans. Inf. Theory 60 (12) (2014)
Khuong Ho-Van, Paschalis C. Sofotasios, Steven Freear
Underlay cooperative cognitive networks with imperfect Nakagami-m fading channel information and strict transmit power constraint: Interference statistics and outage probability analysis. J. Commun. Networks 16 (1) (2014)
Paschalis C. Sofotasios, Theodoros A. Tsiftsis, Yury A. Brychkov, Steven Freear, Mikko Valkama, George K. Karagiannidis
Analytic Expressions and Bounds for Special Functions and Applications in Communication Theory. CoRR (2014)
Paschalis C. Sofotasios, Eric Rebeiz, Li Zhang, Theodoros A. Tsiftsis, Danijela Cabric, Steven Freear
Energy Detection Based Spectrum Sensing Over $\kappa{-}\mu$ and $\kappa{-}\mu$ Extreme Fading Channels. IEEE Trans. Veh. Technol. 62 (3) (2013)
Paschalis C. Sofotasios, Theodoros A. Tsiftsis, Khuong Ho-Van, Steven Freear, Leif R. Wilhelmsson, Mikko Valkama
The kappa-#181;/Ig Composite Statistical Distribution in RF and FSO Wireless Channels. VTC Fall (2013)
Alessandro Perelli, Sevan Harput, Luca De Marchi, Steven Freear
Frequency warping compressive sensing for structural monitoring of aircraft wing. DSP (2013)
Spyros Konstantinidis, Steven Freear
Performance Analysis of Tikhonov Regularized LS Channel Estimation for MIMO OFDM Systems with Virtual Carriers. Wirel. Pers. Commun. 64 (4) (2012)
Georgios Passas, Steven Freear
VLSI Architectures for Sliding-Window-Based Space-Time Turbo Trellis Code Decoders. J. Electr. Comput. Eng. 2012 (2012)
Paschalis C. Sofotasios, Steven Freear
Simple and Accurate Approximations for the Two Dimensional Gaussian Q-Function. VTC Spring (2011)
Paschalis C. Sofotasios, Steven Freear
On the η-µ/gamma and the λ-µ/gamma multipath/shadowing distributions. ATNAC (2011)
Paschalis C. Sofotasios, Steven Freear
Upper and lower bounds for the Rice Ie-function. ATNAC (2011)
Paschalis C. Sofotasios, Steven Freear
Closed-Form Bounds to the Rice and Incomplete Toronto Functions and Incomplete Lipschitz-Hankel Integrals CoRR (2011)
Paschalis C. Sofotasios, Steven Freear
The α-κ-µ Extreme distribution: Characterizing non-linear severe fading conditions. ATNAC (2011)
Paschalis C. Sofotasios, Steven Freear
The κ-μ Extreme/Gamma Distribution: A Physical Composite Fading Model. WCNC (2011)
Yongji Zhou, T. X. Mei, Steven Freear
Real-Time Modeling of Wheel-Rail Contact Laws with System-On-Chip. IEEE Trans. Parallel Distributed Syst. 21 (5) (2010)
Paschalis C. Sofotasios, Steven Freear
Novel expressions for the Marcum and one dimensional Q-functions. ISWCS (2010)
Qinfei Huang, Mounir Ghogho, Steven Freear
Pilot design for MIMO OFDM systems with virtual carriers. IEEE Trans. Signal Process. 57 (5) (2009)