3 papers
eess.SP2018
A Novel Algorithm for Joint Bit and Power Loading for OFDM Systems with Unknown Interference
Ebrahim Bedeer, Mohamed F. Marey, Octavia A. Dobre +2
In this paper, a novel low complexity bit and power loading algorithm is formulated for orthogonal frequency division multiplexing (OFDM) systems operating in fading environments a…
eess.SP2018
On Partially Overlapping Coexistence for Dynamic Spectrum Access in Cognitive Radio
Ebrahim Bedeer, Mohamed Marey, Octavia Dobre +1
In this paper, we study partially overlapping co-existence scenarios in cognitive radio environment. We consider an Orthogonal Frequency Division Multiplexing (OFDM) cognitive syst…
cs.IT2018
Adaptive Bit Allocation for OFDM Cognitive Radio Systems with Imperfect Channel Estimation
Ebrahim Bedeer, Mohamed Marey, Octavia Dobre +1
Cognitive radios hold tremendous promise for increasing the spectral efficiency of wireless communication systems. In this paper, an adaptive bit allocation algorithm is presented…