A Study of Adaptive Algorithm for Dynamic Adjustment of Transmission Power and Contention Window

Vehicular Ad-Hoc Networks (VANETs) enable information sharing among vehicles, enhancing the safety of vehicle operations and holding significant practical value in preventing and managing events such as traffic congestion and accidents. However, effectively distributing beacon messages in complex and dynamic traffic environments presents a major challenge. Therefore, this paper introduces VANETs, where the strategy for communication link duration involves improving transmission range by increasing transmission power. However, under dense traffic conditions, boosting transmission power may lead to high interference levels and increased network overhead. Consequently, dynamic adjustment of power based on varying traffic density has become a common strategy.