High transmission reliability is one of the most important service requirements in Vehicle-to-Everything (V2X) communication for driving control and information exchange between V2X vehicles. In a V2X service environment where direct communication is performed between V2X terminals, the terminal density of the communication coverage is a very important factor that determines the quality of service. Higher terminal density increases the possibility of communication conflicts and degrades connection reliability. To address this problem, research on distributed congestion control (DCC) is being conducted. DCC can be classified into transmission rate control and transmission power control. In this paper, a novel transmission power control method is proposed for efficient congestion control. Simulation results are also provided to evaluate the performance of the proposed method. The results show that the proposed method can be adaptively used in various V2X environments to improve service reliability and efficiency.
KSP Keywords
Congestion control, Direct Communication, Driving control, High Transmission, Information exchange, Performance analysis, Power control(PC), Power control method, Service Reliability, Service environment, Service requirements
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