Cross‐layer perspective for channel assignment in cognitive radio networks: A survey

N Gupta, SK Dhurandher - International Journal of …, 2020 - Wiley Online Library
With the advent of various emerging wireless products, the usage of limited spectrum has
grown exponentially in the recent years. In the next few years, that mobile data traffic …

Performance Analysis and Power Allocation for Uplink Cell-Free Massive MIMO System with Nonlinear Power Amplifier

MM Jadidi, AM Khoueini, A Mohammadi… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Cell-free Massive multiple-input multiple-output (CF-mMIMO) is one of the most promising
technologies. It is crucial to examine the performance of CF-mMIMO systems in real-world …

Characterization and performance improvement of cooperative wireless networks with nonlinear power amplifier at relay

M Majidi, A Mohammadi, A Abdipour… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this paper, the performance of the cooperative cognitive radio network with the amplify-
and-forward protocol is studied when the relay uses a nonlinear power amplifier (NLPA) …

Downlink resource allocation in OFDMA wireless networks under power amplifier non‐linearity

M Baghani, A Mohammadi, M Majidi - IET Communications, 2017 - Wiley Online Library
In this study, the physical layer resource allocation in orthogonal frequency‐division multiple
access (OFDMA) systems is studied by considering the non‐linear effects of power amplifier …

Subcarriers assignment scheme for multiple secondary users in OFDMA‐based IEEE 802.22 WRAN: A game theoretic approach

N Gupta, SK Dhurandher… - Transactions on …, 2018 - Wiley Online Library
In this work, cognitive radio and orthogonal frequency division multiple access–based IEEE
802.22 wireless regional area networks is considered. Generally, subchannel is assigned to …

Characterization of GFDM signal with timing offset, CFO, non-linearity, and PN

F Yazdani, A Mohammadi, A Abdipour, M Kazemi - 2021 - researchsquare.com
In this paper, we study the joint effects of timing offset (TO), carrier frequency offset (CFO),
nonlinear power amplifier distortion, and phase noise (PN) on generalized frequency …

Fair sub-carrier allocation in OFDMA and cognitive radio based IEEE 802.22 WRAN

J Agarwal, R Jain, SK Dhurandher… - … -IEEE Conference on …, 2018 - ieeexplore.ieee.org
In both orthogonal frequency division multiple access (OFDMA) and cognitive radio based
IEEE 802.22 Wireless Regional Area Networks (WRAN), the problem of assigning the …

An accurate analysis of the nonlinear power amplifier effects on SC-FDMA signals

M Baghani, A Mohammadi, M Majidi - Wireless Networks, 2019 - Springer
Single carrier-frequency division multiple access (SC-FDMA) is a multiple access technique
in broadband wireless networks which has been adapted by 3GPP for uplink transmission in …

Resource Allocation in Orthogonal Frequency Division Multiple Access-Long Term Evaluation: Neural Network

K Narender, C Puttamadappa - Journal of Computational and …, 2019 - ingentaconnect.com
Symmetrical Frequency Division Multiple Access (OFDMA) is utilized in the higher rate
Wireless Communication Systems (WCSs). In the correspondence framework, a fem to cell …