机载网络是一种节点快速移动、拓扑频繁变化的新型Ad Hoc网络。本文提出了一种机载网络动态TDMA的接入协议，能够同时支持单播和广播方式，并通过RTS/CTS控制报文解决隐藏终端问题。协议将每帧分为前面的控制时隙和后面的数据时隙两部分，每个节点通过微控制时隙来竞争对应的数据时隙进行发送。同时，还可申请使用先前的空闲时隙或竞争失败时隙，采用消除报文来解决网络中可能存在的死锁情况，从而实现带宽的有效利用。最后，使用QualNet软件进行了仿真，结果显示新协议具有较好的性能。

Airborne network is a new sort of Ad hoc network, in which the nodes move fleetly and the topology changes rapidly. We describe a dynamic TDMA protocol for airborne networks. It can support unicast and broadcast synchronously, and use the RTS/CTS control packet to solve the hidden terminal problem. The new protocol divides  the frame into two parts: the contention slots in the front and the data slots in the back. Every node uses the control minislots to contend the corresponding data slot to send a packet. At the same time it can apply for the idle or failing slots, and use the eliminate packet to solve the potential deadlock. Consequently, it will realize efficient bandwidth utilization. Finally, we used QualNet to simulate the new dynamic TDMA protocol and testify the superior performance of the new protocol.