A resource allocation scheme for multi-user MmWave vehicle-to-infrastructure communication

Abstract

Millimeter wave (mmWave) communications is increasingly seen as a means to meet the communication constraints demanded by the emerging Intelligent Transportation Systems (ITSs) applications. In this paper, a novel directional MAC protocol is designed that encompasses a resource allocation strategy unique to the mmWave Vehicle-to-Infrastructure (V2I) network in an urban setting. We specifically consider a network where each Base Station (BS), equipped with hybrid beamforming antenna arrays, concurrently serves multiple vehicles. Using models for the coherence bandwidth and coherence time specific to the mmWave vehicular channel, a robust resource allocation scheme is provided that the BS utilizes towards efficient multiuser scheduling. The novelty is in the multi-users scenario, time-frequency resource allocation designed specifically for the mmWave channel. To evaluate the network, a channel simulator is entirely built in MATLAB to carry out the link layer simulations.