Hybrid PSO-GSA for energy efficient spectrum sensing in cognitive radio network

G Eappen, T Shankar - Physical Communication, 2020 - Elsevier
Abstract The Cognitive Radio Network (CRN) in 5G heterogeneous network has trade-off
between energy efficiency and spectrum sensing efficiency. Energy Efficiency is important …

Joint cooperative spectrum sensing and channel selection optimization for satellite communication systems based on cognitive radio

M Jia, X Liu, X Gu, Q Guo - International Journal of Satellite …, 2017 - Wiley Online Library
Cognitive radio has attracted considerable attention because of its ability to make full use of
the available spectrum resources for wireless terrestrial communication networks. In …

Spectrum sensing optimization in an UAV-based cognitive radio

X Liu, M Guan, X Zhang, H Ding - IEEE Access, 2018 - ieeexplore.ieee.org
In cognitive radio (CR), the detection performance of traditional spectrum sensing may be
decreased due to the multipath fading and shadowing effect. However, unmanned aerial …

Joint spectrum resource allocation in NOMA-based cognitive radio network with SWIPT

Z Song, X Wang, Y Liu, Z Zhang - IEEE access, 2019 - ieeexplore.ieee.org
In a conventional cognitive radio (CR) network, only when the primary user's (PU) frequency
bands are sensed to be free, secondary users (SUs) can utilize these frequency band …

Spectrum resource optimization for NOMA-based cognitive radio in 5G communications

X Liu, Y Wang, S Liu, J Meng - IEEE Access, 2018 - ieeexplore.ieee.org
In traditional cognitive radio (CR), secondary user (SU) can only access the idle spectrum
when primary user (PU) is absent, which has to vacate the spectrum when detecting the …

Joint cooperative spectrum sensing and spectrum opportunity for satellite cluster communication networks

M Jia, X Liu, Z Yin, Q Guo, X Gu - Ad Hoc Networks, 2017 - Elsevier
Satellite communication networks composed of various satellites with different heights can
be regarded as cooperative primary users in the space segment. Cooperative spectrum …

A novel support vector machine-red deer optimization algorithm for enhancing energy efficiency of spectrum sensing in cognitive radio network

V Srivastava, I Bala - Mobile Radio Communications and 5G Networks …, 2022 - Springer
Abstract 5G Cognitive Radio Network (CRN) has a drawback in energy efficiency and
spectrum sensing trade-off. When it comes to building the cognitive radio, it is essential to …

Cache Aided Decode‐and‐Forward Relaying Networks: From the Spatial View

J Xia, F Zhou, X Lai, H Zhang, H Chen… - Wireless …, 2018 - Wiley Online Library
We investigate cache technique from the spatial view and study its impact on the relaying
networks. In particular, we consider a dual‐hop relaying network, where decode‐and …

Probabilistic caching placement in the presence of multiple eavesdroppers

F Shi, L Fan, X Liu, Z Na, Y Liu - Wireless Communications and …, 2018 - Wiley Online Library
The wireless caching has attracted a lot of attention in recent years, since it can reduce the
backhaul cost significantly and improve the user‐perceived experience. The existing works …

A novel method for spectrum sensing in cognitive radio networks using fractional GWOCS optimization

K Kannan, B Yamini, FMH Fernandez… - Ad Hoc Networks, 2023 - Elsevier
The co-channel interference and radio resources in a wireless communication system are
often systematically managed by employing Radio Resource Management (RRM) …