SNR Based Beam Switching in Millimeter Wave Vehicular Communications

Abstract

The demands of high data rate and mobility in millimeter wave (mmWave) vehicular systems require precise beam alignments. Having the best aligned beams between transmitters and receivers guarantees the best link quality to maximum system performance. The performance highly depends on the signal-to-noise ratio (SNR) with a proper beam selection. In this paper, we propose a scheme which uses the signal-to-interference-noise ratio (SINR) as an indicator to evaluate the beam switching threshold. This scheme is a practical and implementable in the current realistic mobile wireless networks, and the simulation results show that the various misalignment ranges have no obvious degradation on the overall performance.