Performance analysis of NOMA-based underlay cognitive radio networks with partial<? brk?> relay selection

V Aswathi, AV Babu - IEEE Transactions on Vehicular …, 2021 - ieeexplore.ieee.org
This paper investigates outage and throughput performance of non-orthogonal multiple
access (NOMA) based underlay cognitive radio (ie, CR-NOMA) network under partial relay …

Cooperative relay selection in cognitive radio networks

T Jing, S Zhu, H Li, X Xing, X Cheng… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
The benefits of cognitive radio networking (CRN) have been well recognized with the
emerging wireless applications in recent years. While many existing works assume that the …

Full-duplex spectrum sharing in cooperative single carrier systems

Y Deng, KJ Kim, TQ Duong, M Elkashlan… - IEEE Transactions …, 2016 - ieeexplore.ieee.org
We propose cyclic prefix single carrier full-duplex transmission in amplify-and-forward
cooperative spectrum sharing networks to achieve multipath diversity and full-duplex …

Partial relay selection with fixed-gain relays and outdated CSI in underlay cognitive networks

B Zhong, Z Zhang, X Zhang, J Wang… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
The impact of an imperfect channel estimation on the amplify-and-forward (AF) mode
cooperative communications systems is studied, with some important factors, including the …

Cognitive MIMO two-way relay network: Joint optimal relay selection and spectrum allocation

AH Bastami, S Habibi - IEEE Transactions on vehicular …, 2018 - ieeexplore.ieee.org
In this paper, for an overlay cognitive radio system in which the primary users' information
exchange is assisted by a secondary multiple-input multiple-output two-way relay network …

Rate-optimal relay selection for average interference-constrained underlay CR

P Das, NB Mehta - IEEE Transactions on Communications, 2017 - ieeexplore.ieee.org
Cooperative relaying combined with selection exploits spatial diversity to improve the
performance of interference-constrained secondary users in an underlay cognitive radio …

Impact of partial relay selection on the capacity of communications systems with outdated CSI and adaptive transmission techniques

B Zhong, Z Zhang, X Zhang, Y Li, K Long - EURASIP Journal on Wireless …, 2013 - Springer
The impact of outdated channel state information (CSI) on the capacity of amplify-and-
forward (AF) partial relay selection systems is studied in this article. The closed-form …

Interference-constrained optimal power-adaptive amplify-and-forward relaying and selection for underlay cognitive radios

B Sainath, NB Mehta - IEEE Transactions on Communications, 2014 - ieeexplore.ieee.org
In an underlay cognitive radio (CR) system, a secondary user can transmit when the primary
is transmitting but is subject to tight constraints on the interference it causes to the primary …

Performance comparison between adaptive and fixed transmit power in underlay cognitive radio networks

H Hakim, H Boujemaa, W Ajib - IEEE transactions on …, 2013 - ieeexplore.ieee.org
In this paper, we compare the performance in terms of symbol error probability, data rate and
power consumption of the use of fixed transmit power (FTP) and adaptive transmit power …

Outage capacity analysis of MC-CDMA based on cognitive radio network

MA Kabir, MS Kaiser - 2015 International Conference on …, 2015 - ieeexplore.ieee.org
Upcoming high data rate demand of wireless networks create radio frequency spectrum
scarcity. This paper presents performance evaluation of cooperative relaying cognitive …