Distributed power control based on linear quadratic optimal controller for cognitive radio network

S Zhang, X Zhao - China Communications, 2018 - ieeexplore.ieee.org
We propose a distributed closed-loop power control scheme for a cognitive radio network
(CRN) based on our developed state space model of the CRN. The whole power control …

Distributed Power Allocation for Cognitive Radio Networks With Time Varying Channel and Delay: State Feedback Control Approach

S Zhang, X Zhao - IEEE Access, 2018 - ieeexplore.ieee.org
On the basis of control approach instead of using the conventional optimization method, we
present a distributed power allocation algorithm for a cognitive radio network (CRN), where …

A Robust Energy Aware Power Control Algorithm with SINR-Flexible Requirement in Cognitive Radio Networks

M Zhou, X Zhao - Wireless Personal Communications, 2017 - Springer
Energy efficiency power control for dynamical cognitive radio networks is a challenging
problem. In this paper, our objective is to minimize total transmit power of multiuser cognitive …

Distributed power allocation based on LQG regulator with adaptive weight and switching scheme for cognitive radio networks

S Zhang, X Zhao - IEEE Access, 2018 - ieeexplore.ieee.org
We present a distributed power allocation algorithm for a cognitive radio network (CRN),
where the underlying secondary users (SUs) share the same licensed spectrum with the …

Robust power control for cognitive radio in spectrum underlay networks

N Zhao, H Sun - KSII Transactions on Internet and Information …, 2011 - koreascience.kr
Power control is a key technique in spectrum underlay cognitive network to guarantee the
interference temperature limit of the primary users (PUs) and the quality of service of the …

Optimal power control of cognitive radio under sinr constraint with primary user's cooperation

D Xu, Z Feng, Y Li, P Zhang - IEICE transactions on …, 2011 - search.ieice.org
In this letter, we study the power control of a cognitive radio (CR) network, where the
secondary user (SU) is allowed to share the spectrum with the primary user (PU) only if the …

Autonomous distributed power control for cognitive radio networks

S Im, H Jeon, H Lee - 2008 IEEE 68th Vehicular Technology …, 2008 - ieeexplore.ieee.org
In recent years, cognitive radio (CR) has received a great attention due to the ability to
improve the spectrum utilization. It allows the secondary user (SU) in the CR network to …

A novel power control based on a relaxed constraint in cognitive system

M Ridouani, A Hayar, A Haqiq - Transactions on Emerging …, 2016 - Wiley Online Library
The next‐generation 5G networks will integrate two technologies, cognitive radio and
cooperative communication, which use radio spectrum opportunistically and efficiently. In …

Optimal power allocation for multiuser underlay cognitive radio networks under QoS and interference temperature constraints

X Yongjun, Z Xiaohui - China Communications, 2013 - ieeexplore.ieee.org
Power allocation is an important issue for Cognitive Radio Networks (CRNs), since it needs
to consider the Quality of Service (QoS) for Secondary Users (SUs) while maintaining the …

Traditional distributed power control algorithms for Cognitive Radio Network

M Elalem, L Zhao - 2011 6th International ICST Conference on …, 2011 - ieeexplore.ieee.org
In order to utilize the spectrum efficiently, the FCC announced Cognitive Radio (CR)
technology as a candidate to implement negotiated or opportunistic spectrum sharing. It has …