研究简单的两种场景下的802.11p协议的性能，分为简单直线对向行驶和简单直线同向行驶。其中使用了VanetMobiSim和NS2两个软件。-Study a simple two kinds of scenarios of the 802.11p protocol performance, divided into simple and straight right to the road and simply drive a straight line in the same directio