2019 IEEE AFRICON | 2019
Power Allocation for D2D-Enabled Vehicular Communications to Support Driver Assistance Systems
Abstract
The task of a driver assistance system is to monitor the surrounding environment of a vehicle and to provide an appropriate response in the case of detecting any hazardous condition. Such operation requires real-time processing of a large amount of information, which is gathered by a variety of sensors. Vehicular communication in the future vehicles can pave the way for designing highly efficient and cost-effective driver assistance systems based on collaborative and remote processing solutions. The main transmission links of vehicular communication systems are vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I), which can respectively be implemented by Device-to-device (D2D) and Device-to-eNodeB links in a cellular network. In this paper, the concepts of massive multiple-input multiple-output and underlay D2D communication sharing the uplink spectrum of a cellular system is used to envisage a vehicular communication network. Furthermore, statistical methods are employed to find boundaries on the allocated transmission powers for achieving sufficient spectral efficiencies in V2I and V2V links without considering any prior knowledge on the vehicles locations or the channel state information.