Outage Analysis and Beamwidth Optimization for Positioning-Assisted Beamforming
Bingcheng Zhu, Zaichen Zhang, Julian Cheng
Abstract
Beamforming based on channel estimation can be computationally intensive and inaccurate when the antenna array is large, while positioning information can reduce the complexity. In this work, we study the outage probability of positioning-assisted beamforming systems. Closed-form outage probability bounds are derived by considering positioning error, link distance and beamwidth. Based on the analytical result, we show that the beamwidth should be optimized with respect to the link distance and the transmit power, and such optimization significantly suppresses the outage probability.
Topics & Concepts
BeamwidthBeamformingComputer scienceAntenna arrayAntenna (radio)Power (physics)Transmitter power outputChannel (broadcasting)AlgorithmMathematical optimizationTelecommunicationsMathematicsTransmitterPhysicsQuantum mechanicsAdvanced MIMO Systems OptimizationMillimeter-Wave Propagation and ModelingAntenna Design and Analysis