使用临域节点来充当虚拟的MIMO，构成多天线，从而实现空间分集，并且使用了跨层优化的设计理念，将网络层，MAC，和物理层进行了模拟-Use the Pro domain node to act as virtual MIMO, constitutes a multi-antenna in order to achieve spatial diversity, and the use of cross-layer optimization