A method of data communication for a communication device in a wireless ad hoc network is disclosed. The method comprises receiving a service publish message and a service subscribe message from a first communication device of a first service cluster and a second communication device of a second service cluster respectively, wherein the second communication device subscribes a service from the first communication device, and establishing a third service cluster including the first communication device and the second communication device, wherein a schedule of the third service cluster for the communication device, the first and second communication devices of the third service cluster to wake up for data transmission and reception is determined by the communication device or coordinated by the communication device, the first and the second communication devices.