Performance Analysis of RSMA-aided UAV-to-Ground Communications
Citation:
Thai-Hoc Vu, Benevides da Costa, Quoc-Viet Pham, Sunghwan Kim, Performance Analysis of RSMA-aided UAV-to-Ground Communications, IEEE Global Communications Conference, Kuala Lumpur, Malaysia, 4-8 Dec. 2023, 2023Abstract:
This paper investigates the performance of downlink
rate-splitting multiple access (RSMA)-aided unmanned aerial
vehicle (UAV) communication systems, wherein a multi-antenna
UAV exploits RSMA to serve multiple ground users. Considering non-line-of-sight environments, double-shadowed scattering
channel modeling is adopted to generically characterize the
impacts of mobility and shadowing on UAV-to-ground communications, assuming imperfect successive interference cancellation
(SIC). Besides, a unified precoder design is proposed to fully
capture the benefits of multi-antenna paradigms. Closed-form
expressions for the users’ outage probability (OP) and ergodic
capacity are derived. In addition, asymptotic analysis is carried
out to get further insights into the system design, such as the
diversity gain and ergodic slope. Numerical results are presented,
and it is shown that: 1) the effects of double-shadowed scattering
on the system outage performance can be significantly reduced
by increasing the number of antennas installed at the UAV; 2) the
imperfect SIC error can be minimized by properly optimizing the
power allocation of the common stream; and 3) RSMA provides
superior users’ ergodic capacity compared to its orthogonal and
non-orthogonal multiple access counterparts.
Author's Homepage:
http://people.tcd.ie/phamqDescription:
PUBLISHEDKuala Lumpur, Malaysia
Author: Pham, Viet
Other Titles:
IEEE Global Communications ConferenceType of material:
Conference PaperCollections
Series/Report no:
IEEE Sensors JournalAvailability:
Full text availableKeywords:
Unmanned aerial vehicle (UAV), Imperfect successive interference cancellation (SIC), Multiple-input single-output (MISO), Rate-splitting multiple access (RSMA)Subject (TCD):
TelecommunicationsISSN:
1530-437XMetadata
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