Age of Information Aware Resource Allocation and Packet Sampling Control in Vehicular Networks

In this letter, we analyze the age of information (AoI) outage probability for the D/Geo/1 queueing system. Then, we formulate a problem of resource allocation and packet sampling rate optimization to maximize the sum ergodic capacity of V2N links while guaranteeing the AoI outage probability of V2V links in vehicular communication networks. For each possible V2N-V2V spectrum reusing pair, the optimal power allocation and packet sampling rate are obtained by a low-complexity algorithm. Afterwards, spectrum allocation is optimized by bipartite matching. Simulation results validate our AoI analysis and show the effectiveness of the proposed algorithm.