10 citations
3 papers
cs.NI2013
On the Performance of Adaptive Modulation in Cognitive Radio Networks
F. Foukalas, G. T. Karetsos
We study the performance of cognitive radio networks (CRNs) when incorporating adaptive modulation at the physical layer. Three types of CRNs are considered, namely opportunistic s…
cs.IT2013
Capacity Optimization through Sensing Threshold Adaptation for Cognitive Radio Networks
Fotis Foukalas, George T. Karetsos, Lazaros Merakos
In this paper we propose the capacity optimization over sensing threshold for sensing-based cognitive radio networks. The objective function of the proposed optimization is to maxi…
math.OC2012★ 10 cited
Joint optimal power allocation and sensing threshold selection for SUs capacity maximization in SS CRNs
F. Foukalas, P. T. Mathiopoulos, G. T. Karetsos
We propose a joint optimal power allocation and sensing threshold selection for capacity maximization at the secondary user (SU) in spectrum sharing (SS) cognitive radio networks (…