Analysis of the impact of detection threshold adjustments and noise uncertainty on energy detection performance in MIMO-OFDM cognitive radio systems

J Lorincz, I Ramljak, D Begušić - Sensors, 2022 - mdpi.com
Due to the capability of the effective usage of the radio frequency spectrum, a concept
known as cognitive radio has undergone a broad exploitation in real implementations …

Index modulation recognition based on projection residual analysis

Z Zhang, F Liu, J Sheng, C Huang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Index modulation recognition (IMR) at secondary user (SU) receiver is a challenging topic
for MIMO-OFDM cognitive radio network (MIMO-OFDM-CRN) with index modulation …

Efficient power allocation algorithm in downlink cognitive radio networks

O Abdulghafoor, M Shaat, I Shayea… - ETRI …, 2022 - Wiley Online Library
In cognitive radio networks (CRNs), the computational complexity of resource allocation
algorithms is a significant problem that must be addressed. However, the high computational …

PAPR reduction and spectrum sensing in MIMO systems with optimized model

KU Chowdary, B Prabhakara Rao - Evolutionary Intelligence, 2022 - Springer
Cognitive radio is trending domain, which provides strong solution for addressing spectrum
scarcity issues. Many cognitive radios standards suffer from high peak to average power …

Second-Order Statistical Techniques for Enhancing Spectrum Sensing in Cognitive Radio

HM Rostum, OM Salih… - 2023 24th International …, 2023 - ieeexplore.ieee.org
This study explores the use of cognitive radio as a solution to the problem of radio spectrum
scarcity and ineffectiveness. The focus is on spectrum sensing, a critical aspect of cognitive …

Optical wireless multiple-input multiple-output system based on avalanche photodiode receiver

H Du, G Xu - Annals of Telecommunications, 2020 - Springer
With the rising demand for high data-transmission rates, optical wireless communication
(OWC) is considered one of the particularly appropriate solutions. In this paper, an …