中文说明：无线传感器网络需要在多个传感器网络之间共享一个无线信道
English Description：
wireless sensor networks are required to share one wireless channel among several sensor nodes. An efficient media access control (MAC) protocol must be developed and implemented on hardware. This MAC must be easily used by future users on the target hardware. The MAC should avoid data collision and posses strong speed of transmission. The host node will communicate directly with the slave nodes. Each communication will involve the transmitting node checking for activity on the channel, submit a request to send (RTS) transmission, wait for a clear to send (CTS) transmission, then sending its data. The RTS packet is a 4