Spectrum Sharing for Vehicular Communications in A Multi-operator Scenario

At 5.9 GHz intelligent transportation system (ITS) band, there are two competing standards supporting vehicular networking, namely dedicated short-range communication (DSRC) and long-term evolution-vehicle (LTE-V). In this work, we study spectrum sharing for vehicular communications in a multi-operator scenario, in which the operators deploy vehicular networks based on DSRC and LTE-V Specially, we study how vehicular users choose network access in the aforementioned scenario. To estimate the load of LTE-V and that of DSRC which are time-varying, propose a quality-of-service (QoS) assessment mechanism the consideration of vehicular users' high mobility. We Vickrey-Clarke-Groves (VCG) reverse auction mechanism let vehicular users make appropriate access decisions. to achieve better spectrum efficiency and QoS provisioning vehicular users, we propose a spectrum transaction based on carrier sensing and adaptive transmission mechanism, with which LTE-V and DSRC can negotiate spectrum sharing. Simulation results verify the effectiveness the proposed vehicular user access scheme and show the impact the vehicle density and transmission rate on the QoS of users.