S. Khavari, S. Farahmand, S. M. Razavizadeh and I. Lee, “Optimum Solutions for Weighted Sum-Rate of NOMA and TDMA in Wireless Powered IoT Networks” , in IEEE Internet of Things Journal, 2023.
A. H. Jazi, S. M. Razavizadeh and T. Svensson, “Integrated Access and Backhaul (IAB) in Cell-Free Massive MIMO Systems” , in IEEE Access, 2023.
A. Rafieifar, H. Ahmadinejad, S. M. Razavizadeh and J. He, “Secure Beamforming in Multi-User Multi-IRS Millimeter Wave Systems” , in IEEE Transactions on Wireless Communications, 2023.
S. Fatemeh. Zamanian and S. M. Razavizadeh, “3D beamforming in Intelligent Reflecting Surface (IRS)-assisted multi-user cognitive radio networks” , in Physical Communication, 2022.
M. Parhizgar and S. M. Razavizadeh, “AN-aided beamforming for IRS-assisted SWIPT systems” , in Physical Communication, 2022.
A. Mahmoudi, B. Abolhassani, S. M. Razavizadeh, and H. H. Nguyen, “User Clustering and Resource Allocation in Hybrid NOMA-OMA Systems Under Nakagami-m Fading” , in IEEE Access, 2022.
N. Ghiasi, S. Mashhadi, S. Farahmand, S. M. Razavizadeh, and I. Lee, “Energy Efficient AP Selection for Cell-Free Massive MIMO Systems: Deep Reinforcement Learning Approach” , in IEEE Transactions on Green Communications and Networking, 2022.
S. Fatemeh Zamanian, M. H. Kahaei S. M. Razavizadeh, T. Svensson “Attacking Massive MIMO Cognitive Radio Networks by Optimized Jamming” , IEEE Open Journal of the Communications Society, 2021.
A. Rafieifar, S. M. Razavizadeh, “Secrecy Rate Maximization in Multi-IRS Millimeter Wave Networks” , Elsevier Physical Communication, 2021.
S.F. Zamanian, S. M. Razavizadeh, Q. Wu “Vertical Beamforming in Intelligent Reflecting Surface-Aided Cognitive Radio Networks” , IEEE Wireless Communications Letters, 2021.
H. Soltanizadeh, S. Farahmand S. M. Razavizadeh, “Coordinated versus uncoordinated channel tracking for high-rate internet of things in multiuser massive MIMO: Algorithms and performance” , Elsevier Signal Processing, 2021.
S. Mashhadi, N. Ghiasi, S. Farahmand, S. M. Razavizadeh, “Deep Reinforcement Learning Based Adaptive Modulation With Outdated CSI” , IEEE Communications Letters, 2021.
A. Mahmoudi, B Abolhassani, S. M. Razavizadeh, H. H. Nguyen “Outage Balancing in Downlink NOMA over Nakagami-m Fading Channels” , IEEE Transactions on Vehicular Technology, 2021.
S. Bagherinejad and S. M. Razavizadeh, “Direction-Based Jamming Detection and Suppression in mmWave Massive MIMO Networks” , IET Communications, 2021.
F. S. Mirhosseini, A. Tadaion, S. M. Razavizadeh, “Spectral Efficiency of Dense Multicell Massive MIMO Networks in Spatially Correlated Channels” , IEEE Transactions on Vehicular Technology, 2020.
Z. Goli, S. M. Razavizadeh, H Farhadi, T. Svensson “Secure Simultaneous Information and Power Transfer for Downlink Multi-user Massive MIMO” , IEEE Access, 2020.
A. Sheikhi, S. M. Razavizadeh, I. Lee “A Comparison of TDD and FDD Massive MIMO Systems Against Smart Jamming” , IEEE Access, 2020.
H. Akhlaghpasand, Emil Björnson, and S. M. Razavizadeh, “Jamming-Robust Uplink Transmission for Spatially Correlated Massive MIMO Systems” , IEEE Transactions on Communications, 2020.
M. Ahmadabadian, S. Khavari, and S. M. Razavizadeh, “Energy Efficiency Maximization in FDD Massive MIMO Systems with Channel Aging” , Wireless Networks, 2020.
M. Baianifar, S. M. Razavizadeh, S. Khavari, and T. Svensson, “Effect of Users Height Distribution on the Coverage of mmWave Cellular Networks with 3D Beamforming” , IEEE Access, 2019.
H. Akhlaghpasand, Emil Björnson, and S. M. Razavizadeh, “Jamming Suppression in Massive MIMO Systems” , IEEE Transactions on Circuits and Systems II: Express Briefs, 2019.
M. Baianifar, S. M. Razavizadeh, H. Akhlaghpasand, and I. Lee, “Energy efficiency maximization in mmWave wireless networks with 3D beamforming,” in Journal of Communications and Networks" , in Journal of Communications and Networks, vol. 21, no. 2, pp. 125-135, April 2019.
Hadis Abarghouyi, S. M. Razavizadeh, and Emil Björnson, “QoE-Aware Beamforming Design for Massive MIMO Heterogeneous Networks” , IEEE Transactions on Vehicular Technology, vol. 67, no. 9, pp. 8315-8323, Sep. 2018.
Tan Tai Do, Emil Björnson, Erik G. Larsson, S. M. Razavizadeh, “Jamming Resistant Receivers for the Massive MIMO Uplink” , IEEE Transactions on Information Forensics and Security, vol. 13, no. 1, pp. 210-223, Jan. 2018.
H. Akhlaghpasand, S. M. Razavizadeh, Emil Björnson, Tan Tai Do, “Jamming Detection in Massive MIMO Systems” , IEEE Wireless Communications Letters, vol. 7, no. 2, pp. 242-245, April 2017.
J. Rostampoor, S. M. Razavizadeh , and Inkyu Lee, “Energy Efficient Precoding Design for SWIPT in MIMO Two-Way Relay Networks” , IEEE Transactions on Vehicular Technology, vol. 66, no. 9, pp. 7888-7896, Sep. 2017.
H. Pirzadeh, S. M. Razavizadeh , and Emil Bjornson, “Subverting Massive MIMO by Smart Jamming” , IEEE Wireless Communications Letters, Vol. 5 , no. 1 , pp. 20-23 , Feb. 2016 .
S. M. Razavizadeh , Minki Ahn, and Inkyu Lee, “ Three Dimensional Beamforming: New Enabling Technology for Fifth Generation Wireless Networks ” , IEEE Signal Processing Magazine, Vol.31, No.6, pp.94-101, Nov. 2014.
J. Banar and S. M. Razavizadeh, “Resource Allocation and Relay Selection In Full-Duplex Cooperative Orthogonal Frequency Division Multiple Access Networks” , Elsevier's Computers and Electrical Engineering journal, vol. 61, pp. 223-234, July 2017.
S. Khavari and S. M. Razavizadeh, “Joint Tilt Angle Adaptation and Beamforming in Multicell Multiuser Cellular Networks” , Elsevier's Computers and Electrical Engineering journal, vol. 61, pp. 195-207, July 2017.
A. Rahmanpour, Vahid T. Vakili and S. M. Razavizadeh, “Enhancement of Physical Layer Security Using Destination Artificial Noise Based on Outage Probability” , Springer’s Wireless Personal Communications, Vol. 95 , no. 2 , pp. 1553-1565 , July 2017.
H. Akhlaghpasand and S. M. Razavizadeh, “Adaptive Pilot Decontamination in Multicell Very Large Multiuser MIMO Systems” , Springer's Telecommunication Systems, 2017.
A. Habibzadeh, S. Shirvani Moghaddam, S. M. Razavizadeh, M. Shirvanimoghaddam, “Modeling and Analysis of Traffic-Aware Spectrum Handover Schemes in Cognitive HetNets” , Transactions on Emerging Telecommunications Technologies (Wiley), May 2017.
A. Habibzadeh, S. Shirvani Moghaddam, S. M. Razavizadeh, M. Shirvanimoghaddam, “Analysis and Performance Evaluation of an Efficient Handover Algorithm for Cognitive HetNets” , International Journal of Communication Systems (Wiley), March 2017.
M. Baianifar, S. M. Razavizadeh, “Power Efficiency of Massive MIMO Relay Interference Channel” , Journal of Iranian Association of Electrical and Electronics Engineers, Feb. 2017.
F. Askariyan, S. M. Razavizadeh and F. Haddadi, “ On the Achievable Rate-Regions for the Gaussian Two-way Diamond Channels” , , accepted for publication in Iranian Journal of Electrical and Electronic Engineering (IJEEE), 2015.
S. Mohammadkhani, M. H. Kahaei and S. M. Razavizadeh , “ Robust Beamforming and Power Allocation in Cognitive Radio Relay Networks with Imperfect Channel State Information ” , IET communications, Vol. 8, no.9, June 2014.
M. Khaleghi, M. Khaleghi and S. M. Razavizadeh , “Tilted-THP over Correlated Time Varying MIMO Channels” ;, Mobile Computing, vol. 3, iss. 1, Feb. 2014.
P. Drakhshan, GR. Dadashzadeh, F. Razzazi and S. M. Razavizadeh , “Power and Time Slot Allocation in Cognitive Relay Networks Using Particle Swarm Optimization” , The Scientific World Journal (Hindawi), Aug. 2013.
M. Khaleghi, H. Khaleghi and S. M. Razavizadeh , “Power Optimization of Tilted Tomlinson-Harashima Precoder in MIMO Channels with Imperfect Channel State Information” , Journal of Optimization (Hindawi), 2013.
S. Mohammadkhani, H. Kahaei and S. M. Razavizadeh , “ Cooperative Filter-and-Forward Beamforming in Cognitive Radio Relay Networks ” , International Journal of Information and Communication Technology (IJICT), Vol.5, No.2, pp.11-17, Spring 2013.
M. Dashti, P. Azmi, K. Navaie and S. M. Razavizadeh , “Ergodic Sum Rate Maximization for Underlay Spectrum Sharing with Heterogeneous Traffic” , Wireless Personal Communications (Springer), Sep. 2012.
Z. Mohades, V. Tabataba-Vakili and S. M. Razavizadeh and D. A. Moghadam, “Dynamic Fractional Frequency Reuse (DFFR) with AMC and Random Access in WiMAX System” , Wireless Personal Communications (Springer), March 2012.
P. Drakhshan, GR. Dadashzadeh, F. Razzazi and S. M. Razavizadeh , “Bio-Inspired Distributed Beamforming for Cognitive Radio Networks in Non-Stationary Environment” , IEICE Electronics Express, Vol. 8, No. 6. 2011.
Z. Mohades, V. T.Vakili and S. M. Razavizadeh , “Enhanced Dynamic Fractional Frequency Reuse in WiMAX Systems Using AMC and Power Control” , International Journal on Communications Antenna and Propagation (IRECAP ), Vol. 1. n. 4, Aug. 2011.
P. Drakhshan, GR. Dadashzadeh, F. Razzazi and S. M. Razavizadeh , “Minimum Power Transmission Design for Cognitive Radio Networks in Non-Stationary Environment” , IEICE Electronics Express, Vol. 8, No. 3. Feb. 2011.
M. Farmahini-Farahani, A. Ghasemi and S. M. Razavizadeh , “Sequential Interference-Aware Admission Control in Underlay Cognitive Radio Networks” , International Journal of Information and Communication Technology (IJICT), Sep. 2011.
N. Noori, S. M. Razavizadeh and A. Attar, “Joint beamforming and power control in MIMO cognitive radio networks,” IEICE Electronics Express, Vol. 7, No.3,pp. 203-208, Feb. 2010.
A. Ghasemi and S. M. Razavizadeh , “A Simple MAC Protocol for Cognitive Wireless Networks” , IEICE Transactions on Communications, Vol.E92-B,No.12, Dec. 2009.
S. M. Razavizadeh , Amir K. Khandani, V. Tabataba-Vakili and W. Tong, “Space-Time Precoding for Downlink Transmission in Multiple Antenna CDMA Systems" , IEEE Transactions on Vehicular Technology, vol. 56, issue 5, pp. 2590 - 2602, Sept. 2007.
S. M. Razavizadeh , V. Tabataba-Vakili and P. Azmi, “A New Modified Viterbo-Boutros Sphere Decoding Algorithm,” Iranian Journal of Science and Technology (IJST), vol. 30, no. B2, pp.285-290, April 2006.
V. T. Vakili, S. M. Razavizadeh , and P. Azmi, “Performance and Complexity Comparison of some Multiuser Detectors in Multi-antenna CDMA Systems over Flat Fading Channels” , International Journal of Engineering , IUST ,vol. 3, issue 18, pp. 11-22, Oct.