Pattern-MAC (PMAC) protocol, instead of having fixed sleepwakeups, the sleep-wakeup schedules of the sensor nodes are adaptively determined. The schedules are decided based on a node’s own traffic and that of its neighbors.

无线传感器网络MAC协议研究中，PMAC协议的简单代码。-MAC Protocol for Wireless Sensor Networks study, PMAC code simple protocol.

ns2 source code for dmac protocol