A wireless communications device detects a change in its residual energy
status, and transmits the residual energy status across a wireless
communications network to a remote device that coordinates communications
in the wireless communications network. For example, the remote device
may be a piconet coordinator (PNC) in an IEEE 802.15.3 network, or a
master device in a Bluetooth network. A wireless communications device
that coordinates communications in a wireless communications network (the
coordinator) transmits one or more first handover commands to one or more
remote devices upon the occurrence of a triggering event. Based on
responses to these first commands, the coordinator selects a remote
device for coordinating future communications in the wireless
communications network.