237 citations
- Brookhaven National LaboratoryUS92 papers
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Showing 2014Show all
3 papers · 1 filter
math.NT2014
Periodic continued fractions and elliptic curves over quadratic fields
Mohammad Sadek
Let be a square free quartic polynomial defined over a quadratic field such that its leading coefficient is a square. If the continued fraction expansion of $\displaysty…
cs.NI2014★ 12 cited
On the Stable Throughput of Cooperative Cognitive Radio Networks with Finite Relaying Buffer
Adel M. Elmahdy, Amr El-Keyi, Tamer ElBatt +1
In this paper, we study the problem of cooperative communications in cognitive radio systems where the secondary user has limited relaying room for the overheard primary packets. M…
cs.NI2014★ 5 cited
A Probabilistic MAC for Cognitive Radio Systems with Energy Harvesting Nodes
Ramy E. Ali, Fadel F. Digham, Karim G. Seddik +3
In this paper, we consider a cognitive radio (CR) system where the secondary user (SU) harvests energy from both the nature resources and the primary user (PU) radio frequency(RF)…