10 citations · 10 across the 5 of their papers we have counts for
6 papers
Energy-efficient Traffic Bypassing in LTE HetNets with Mobile Relays
George T. Karetsos, Angelos Rouskas, Fotis Foukalas
One of the core technologies being standardized by 3GPP for LTE-A is the introduction of Relay Nodes (RNs). RNs are intended for ensuring coverage at cell edges as well as for the…
Collision Avoidance in TV White Spaces: A Cross-layer Design Approach for Cognitive Radio Networks
Fotis Foukalas, George Karetsos
One of the most promising applications of cognitive radio networks (CRNs)is the efficient exploitation of TV white spaces (TVWSs) for enhancing the performance of wireless networks…
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…
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…
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 (…
Adaptive Modulation in OSA-based Cognitive Radio Networks
F. Foukalas, G. T. Karetsos, G. K. Karagiannidis
Opportunistic spectrum access is based on channel state information and can lead to important performance improvements for the underlying communication systems. On the other hand a…