A Game Theoretic Approach to Power Control in Vehicula rCommunication Systems

Sammanfattning: Vehicular-to-network (V2N) communications are a key enabler in various intelligenttransportation system services currently investigated by global standards bodiesand European projects. In this master thesis, we study the impact of pilot and datapower setting on the uplink performance of V2N communications. Specifically, weconsider the “urban” and “rural” scenarios of the 5GCAR project, using the recommendedbase station and vehicular user equipment parameters in the 5.9 GHz band.We study a distributed non-cooperative game theoretic algorithm to determine thepilot-data power ratio for each vehicle. Numerical results indicate that the proposeddistributed algorithm converges to the Nash equilibrium, and that the mean squarederror (MSE) of the received data symbols decreases by 0.6 − 1.2 dB as comparedwith the MSE obtained by a centralized benchmark algorithm. The proposed algorithmachieves this improvement over a centralized benchmarking algorithm at theexpense of only a few iterations.