Ground-to-Air Communications Beyond 5G: A Coordinated Multipoint Transmission Based on Poisson-Delaunay Triangulation

Abstract

This paper designs a novel ground-to-air communication scheme to serve unmanned aerial vehicles (UAVs) through legacy terrestrial base stations (BSs). In particular, a tractable coordinated multi-point (CoMP) transmission based on the geometry of Poisson-Delaunay triangulation is developed, which provides reliable and seamless connectivity for UAVs. An effective dynamic frequency allocation scheme is designed to eliminate inter-cell interference by using the theory of circle packing. For exact performance evaluation, the handoff probability of a typical UAV is characterized, and then the coverage probability with handoffs is attained. Simulation and numerical results corroborate that the proposed scheme outperforms the conventional CoMP scheme with three nearest cooperating BSs in terms of handoff and coverage probabilities. Moreover, as each UAV has a fixed and unique CoMP BS set, it avoids the realtime dynamic BS searching process, thus reducing the feedback overhead.

Performance Analysis of Joint Transmission CoMP Schemes for ABS Assisted Cellular Networks

“…[11] presents an analytical framework based on Poisson-Delaunay triangulation for the coverage probability of a cell edge user in a single tier network with JT and DCS CoMP schemes. In [12] the coverage and handoff probabilities for aerial users served by three cooperating terrestrial BSs are derived using the Poisson-Delaunay triangulation. In this paper we analyse the downlink performance of JT CoMP schemes in an ABS assisted cellular network.…”