1. A mobile terminal configured to constitute an ad hoc network together with a plurality of other terminals, comprising: a packet relay unit configured to execute a relay operation of relaying a packet transferred between the other terminals; a packet transmitter configured to execute a transmission operation of transmitting a packet generated in the mobile terminal to any one of the other terminals; a power supply manager configured to execute a power supply control operation; and a coordination controller configured to cause the relay operation and the power supply control operation to be coordinated with each other, wherein the coordination controller selectively controls whether each of the relay operation, the transmission operation and the power supply control operation is executed.