Achievable Data Rate for URLLC-Enabled UAV Systems With 3-D Channel Model

• Published in: IEEE wireless communications letters Vol. 8; no. 6; pp. 1587 - 1590
• Main Authors: Ren, Hong, Pan, Cunhua, Wang, Kezhi, Deng, Yansha, Elkashlan, Maged, Nallanathan, Arumugam
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.12.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: 3-D Channel; Channel models; Chebyshev approximation; Collision avoidance; Convex functions; Decoding; Error probability; Ground stations; ISDN; Lower bounds; Quadratures; Reliability; short packet; Signal to noise ratio; Three dimensional models; Tightness; UAV; Unmanned aerial vehicles; URLLC
• ISSN: 2162-2337; 2162-2345
• DOI: 10.1109/LWC.2019.2929391

In this letter, we investigate the average achievable data rate (AADR) of the control information delivery from the ground control station (GCS) to unmanned-aerial-vehicle (UAV) under a 3-D channel, which requires ultra-reliable and low-latency communications (URLLC) to avoid collision. The value of AADR can give insights on the packet size design. Achievable data rate under short channel blocklength is adopted to characterize the system performance. The UAV is assumed to be uniformly distributed within a restricted space. We first adopt the Gaussian-Chebyshev quadrature (GCQ) to approximate the exact AADR. The tight lower bound of AADR is derived in a closed form. Numerical results verify the correctness and tightness of our derived results.