Ren, Hong, Pan, Cunhua, Wang, Kezhi, Xu, Wei, Elkashlan, Maged and Nallanathan, Arumugam (2020) Joint Transmit Power and Placement Optimization for URLLC-enabled UAV Relay Systems. IEEE Transactions on Vehicular Technology, 69 (7). pp. 8003-8007. ISSN 0018-9545
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Joint Transmit Power and Placement Optimization for URLLC-enabled UAV Relay Systems.pdf - Accepted Version Download (480kB) | Preview |
Abstract
This letter considers an unmanned aerial vehicle (UAV)-enabled relay communication system for delivering latency-critical messages with ultra-high reliability, where the relay is operating under amplifier-and-forward (AF) mode. We aim to jointly optimize the UAV location and power to minimize decoding error probability while guaranteeing the latency constraints. Both the free-space channel model and three-dimensional (3-D) channel model are considered. For the first model, we propose a low-complexity iterative algorithm to solve the problem, while globally optimal solution is derived for the case when the signal-to-noise ratio (SNR) is extremely high. For the second model, we also propose a low-complexity iterative algorithm to solve the problem. Simulation results confirm the performance advantages of our proposed algorithms.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | UAV, URLLC, short-packet transmission, relay |
| Subjects: | F300 Physics G400 Computer Science G600 Software Engineering |
| Department: | Faculties > Engineering and Environment > Computer and Information Sciences |
| Depositing User: | John Coen |
| Date Deposited: | 19 May 2020 07:41 |
| Last Modified: | 31 Jul 2021 13:30 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/43178 |
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