Daniel Benevides da Costa

TL;DR: The outage probability of dual-hop cognitive amplify-and-forward relay networks subject to independent non-identically distributed Nakagami-m fading is examined and it is revealed that the diversity order is strictly defined by the minimum fading severity between the two hops of the secondary network.

TL;DR: This paper investigates the end-to-end performance of dual-hop relaying systems with beamforming over Nakagami-m fading channels with semi-blind (fixed-gain) relays with single antennas, and source and destination nodes equipped with multiple antennas.

TL;DR: This letter investigates the outage performance of cooperative relaying transmissions in two-user non-orthogonal multiple access systems, wherein simultaneous wireless information and power transfer is employed at the near users to power their relaying operations.

TL;DR: Three low-complexity relay-selection strategies, namely, selective amplify and forward, selective decode and forward (S-DF), and amplified and forward with partial relay selection (PRS-AF) in a spectrum-sharing scenario are studied and the diversity and coding gains are derived and compared.

TL;DR: This paper investigates several important performance metrics of cognitive amplify-and-forward (AF) relay networks with a best relay selection strategy and subject to non-identical Rayleigh fading with the result that the diversity gain is defined by the number of relays pertaining to the SU network, being therefore not affected by the interference power constraint of the PU network.