X Gong, SA Vorobyov… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
This paper studies optimal bandwidth and power allocation in a cognitive radio network where multiple secondary users (SUs) share the licensed spectrum of a primary user (PU) …
In this paper, we consider a cognitive radio (CR) network where a secondary (cognitive) user shares the spectrum for transmission with a primary (non-cognitive) user over block …
In this paper, a new spectrum-sharing model called sensing-based spectrum sharing is proposed for cognitive radio networks. This model consists of two phases: In the first phase …
R Zhang - IEEE Transactions on Wireless Communications, 2009 - ieeexplore.ieee.org
This paper considers spectrum sharing for wireless communication between a cognitive radio (CR) link and a primary radio (PR) link. It is assumed that the CR protects the PR …
L Musavian, S Aïssa - IEEE Transactions on Communications, 2009 - ieeexplore.ieee.org
In this paper, we analyze the capacity gains of opportunistic spectrum-sharing channels in fading environments with imperfect channel information. In particular, we consider that a …
R Zhang - IEEE GLOBECOM 2008-2008 IEEE Global …, 2008 - ieeexplore.ieee.org
This paper is concerned with spectrum sharing for wireless communication, where a secondary or cognitive radio (CR) link communicates over the same bandwidth that has …
R Zhang, YC Liang - IEEE Journal of selected topics in signal …, 2008 - ieeexplore.ieee.org
In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority) users intend to communicate with each other by opportunistically utilizing the transmit …
CX Wang, X Hong, HH Chen… - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
Cognitive radio (CR) has been considered as a promising technology to improve the spectrum utilization. In this paper we analyze the capacity of a CR network with average …
R Zhang, S Cui, YC Liang - IEEE Transactions on Information …, 2009 - ieeexplore.ieee.org
This paper studies the information-theoretic limits of a secondary or cognitive radio (CR) network under spectrum sharing with an existing primary radio network. In particular, the …