Before revision:  We propose ECPR, an environment and context-aware DCC algorithm , which combines power and rate control  to improve cooperative awareness by adapting to both specific propagation environments ( such as urban intersections, open highways, suburban roads) as well as application requirements (e.g., different target cooperative awareness range).
After revision:  We propose ECPR, an environment and context-aware DCC algorithm combines power and rate control to improve cooperative awareness by adapting to both specific propagation environments ( such as urban intersections, open highways, suburban roads) as well as application requirements (e.g., different target cooperative awareness range).