说明：  无线通信的各种运动模型。适用于移动通信、无线传感器网络等领域。 包括：Random walk、random waypoint、random direction、boundless simulation area、 gauss-markov等运动模型 - probabilistic random walk
(Wireless communication range of motion model. Applicable to mobile communication, wireless sensor networks and other fields. Including: Random walk, random waypoint, random direction, boundless simulation area, gauss-markov model, such as sports- probabilistic random walk)