Abstract:
In this paper, we propose Drone Assisted Network
Coded Co-operation (DA-NCC) for next generation wireless networks to achieve good quality of service, better spectral efficiency
and improved diversity. Unlike typical cooperative networks,
DA-NCC makes use of drone as a relay node which provides
additional degree of freedom in terms of movement. By adjusting
the vertical position of drone, probability of getting Line of Sight
component for Source (S)-Relay (R) and Relay (R)-Destination
(D) links may be improved. For accurate characterization of such
networks, Rayleigh faded channel for Source (S)-Destination (D)
pair and probability based mixture model of Rayleigh and Rician
faded channels for S-R and R-D pair are considered. Analytical
expressions for network coded noise, variance of network coded
noise, signal to overall noise ratio at destination node and rate
are derived and verified through monte carlo simulation.
Our investigation reveals that use of drone improves the network performance. However, drone height needs to be determined
scrupulously. Such drone assisted communication set-up may
play an important role in disaster management scenarios where
communication through infrastructured base station is disrupted
due to natural calamities.