20 research outputs found
Dual-hop transmissions with fixed-gain relays over Generalized-Gamma fading channels
In this paper, a study on the end-to-end performance of dual-hop wireless communication systems equipped with fixed-gain relays and operating over Generalized-Gamma (GG) fading channels is presented. A novel closed form expression for the moments of the end-to-end signal-to-noise ratio (SNR) is derived. The average bit error probability for coherent and non-coherent modulation schemes as well as the end-to-end outage probability of the considered system are also studied. Extensive numerically evaluated and computer simulations results are presented that verify the accuracy of the proposed mathematical analysis.\u
Outdoor and indoor path loss modeling at the sub-THz band
In this letter, we present new measurement results to model large-scale path
loss at the sub-THz (141-145 GHz) band, for both indoor and outdoor scenarios.
Extensive measurement campaigns have been carried out, taking into account both
line-of-sight (LoS) and non line-of-sight (NLoS) propagation. For all
considered propagation scenarios, existing omni-directional and directional
path loss model have been developed, based on the so-called close-in (CI)
free-space reference distance model. Moreover, path loss modeling is applied
for the 2nd and 3rd strongest multipath components (MPCs). Thus, path loss
exponent and large-scale shadow fading estimates are provided. Moreover, power
angular spread analysis is depicted, using power angular information up to the
3rd strongest MP