Back to Search
Start Over
UAV-Enabled NOMA Networks Analysis With Selective Incremental Relaying and Imperfect CSI
- Source :
- IEEE Transactions on Vehicular Technology. 69:16276-16281
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- This paper studies the performance of unmanned aerial vehicle (UAV)-enabled NOMA networks with selective incremental relaying and imperfect channel state information (CSI). In particular, an access point transmits a superposed signal based on NOMA principle to an UAV terminal (UT) which can act as a relay to assist the information transmission for a ground terminal (GT). Different from the conventional relaying protocol requiring UT to relay the message all the time no matter how the received signal quality of two terminals are, we propose a novel NOMA-based selective incremental relaying protocol that allows relay to forward messages on the condition of the received signal with satisfied quality at UT and the unsatisfied quality signal at GT. The closed-form solutions of outage probabilities for the two terminals are characterized with the elevation angle-based path loss exponent and small-scale fading. Moreover, the benchmark schemes are provided to exhibit the superiority of the proposed protocol. Finally, simulation and theoretical results validate the correctness of the outage analysis, demonstrate the advantage of the proposed relaying protocol over its counterparts, and show that the stronger impact of channel estimation error on GT than UT in terms of outage probability.
- Subjects :
- Computer Networks and Communications
Computer science
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Real-time computing
Aerospace Engineering
020302 automobile design & engineering
Data_CODINGANDINFORMATIONTHEORY
02 engineering and technology
medicine.disease
Signal
law.invention
Noma
0203 mechanical engineering
Terminal (electronics)
Relay
law
Automotive Engineering
medicine
Benchmark (computing)
Fading
Electrical and Electronic Engineering
Communication channel
Subjects
Details
- ISSN :
- 19399359 and 00189545
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Vehicular Technology
- Accession number :
- edsair.doi...........1a55ff2fc325ab760b18b151de125b68