This paper addresses the problem of adaptive power control based on outage probability minimization in Vehicular Ad Hoc\nNetworks (VANETs), called a Power Control Algorithm Based on Outage Probability Awareness (PC-OPA). Unlike most of the\nexisting works, our power control method aims at minimizing the outage probability and then is subject to the density of nodes\nin certain area. To fulfill power control, cumulative interference is assumed to be available at the transmitter of each terminal.\nThe transmitters sent data by maximum power and then get the cumulative interference-aware outage probability. Furthermore,\nwe build the interference model by stochastic geometric theory and then derive the expression between outage probability and\ncumulative interference. According to the expression, we adjust the transmitter power and optimize the outage probability.\nSimulation results are provided to demonstrate the effectiveness of the proposed power control strategies. It is shown that the PCOPA\ncan achieve a significant performance gain in terms of the outage probability and throughputs. ComparingMPC (Maximum\nPower Control algorithm) andWFPC (Water-Filled Power Control algorithm), the proposed PC-OPA decreased by 23% in terms\nof the outage probability and increased by 25% in terms of throughputs.
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