A cognitive radio network (CRN) is formed by either allowing the secondary users (SUs) in a secondary communication network (SCN) to opportunistically operate in the frequency …
AT Hoang, YC Liang - … on Personal, Indoor and Mobile Radio …, 2006 - ieeexplore.ieee.org
We consider a cognitive radio network in which a set of base stations make opportunistic unlicensed spectrum access to transmit data to their subscribers. As the spectrum of interest …
R Xie, H Ji, P Si, Y Li - 2010 IEEE Global Telecommunications …, 2010 - ieeexplore.ieee.org
Resource allocation problem in cognitive radio networks (CRN) is one of the key issues to improve the efficiency of spectrum utilization. Most of previous work on resource allocation …
In this paper, we study the optimal power control policies for fading channels in cognitive radio networks considering both the transmit and the interference power constraints. For …
In this paper, we study the optimal power allocation strategies to achieve the delay-limited capacity and outage capacity for fading channels in cognitive radio networks considering …
This paper derives tight ergodic sum-rate capacity scaling limits for cognitive radio secondary networks under five different communication environments (CoE) for two different …
Spectrum sharing has attracted a lot of attention in cognitive radio recently, as an effective method of alleviating the spectrum scarcity problem, by allowing unlicensed (secondary) …
B Zayen, M Haddad, A Hayar, GE Øien - Physical Communication, 2008 - Elsevier
Motivated by the desire for efficient spectral utilization, we present a novel algorithm based on binary power allocation for sum rate maximization in Cognitive Radio Networks (CRN). At …
X Kang, YC Liang, HK Garg - IEEE Transactions on Wireless …, 2010 - ieeexplore.ieee.org
This paper considers a spectrum sharing based cognitive radio network where a M-user fading multiple access network shares the same spectrum with an existing primary network …