Joint Spectrum Resource Allocation and Power Control for LTE- V2V Communication

LTE Vehicle-to-Vehicle (V2V) communication has emerged as a promising solution to meet the stringent requirements of automotive communication. In this paper, we propose a joint spectrum resource allocation and power control algorithm to maximize the system data rates of both Cellular User Equipment (CUE) and Vehicular User Equipment (VUE). Besides, the reliability requirements of CUEs and VUEs as well as the delay requirements of VUEs are guaranteed. Firstly, we propose a joint resource allocation optimal problem followed by transforming the optimal problem into two subproblems, i.e., the spectrum resource allocation subproblem and the power control subproblem. Secondly, we transform the spectrum resource allocation subproblem into a maximum weight matching problem for bipartite graphs. Then convex optimization and linear programming are applied to adjust the transmit power of users to further improve the system data rates. Finally, the effectiveness of the proposed algorithm is verified by the simulation results.