ECTI TRANSACTIONS ON COMPUTER INFORMATION TECHNOLOGYVolume 16, No. 01, Month MARCH, Year 2022, Pages 48 - 55
Exploiting impact of imperfect csi on performance of backscatter-aided noma system
Minh-Sang Van Nguyen, Dinh-Thuan Do
Abstract Download PDFIn this paper, we consider the impact of imperfect channel state information
(CSI) on outage probability of users in an ambient backscatter
(AB) enabled nonorthogonal multiple access (NOMA) network. In our
proposed scheme, a source node communicates with two destinations via
a radio frequency-powered device. Such device is assume with ability of
backscattering the signals from the base station. We derive expressions
to show outage probability of main nodes in such system. The analytical
expressions for the outage probability are checked with Monte-Carlo simulations.
It has been shown that the analytical results match the simulation
results. In particular, the user with higher allocated power exhibits its performance
better than another 10%-15% when signal to noise ratio (SNR)
at the source node is 30 dB.
Non-orthogonal Multiple Access (NOMA), Backscatter, Outage Probabil- ity