A terminal comprises a plurality of hardware I/O units, including a wireless transceiver having a powered-up state in which at least one of a transmit path and a receive path is enabled at the expense of higher power consumption and a powered-down state in which the at least one path is disabled in favor of lower power consumption; a processing apparatus; and a storage medium coupled to the processing apparatus and storing at least a first and a second application, an operating system, a communication protocol layer and a driver layer arranged to be executed on the processing apparatus. The operating system is arranged to arbitrate access by the plurality of applications to the hardware I/O units via the driver layer, including access to the wireless transceiver via the communication protocol layer and driver layer. The second application comprises a wireless traffic scheduler configured to coordinate traffic associated with the second application to be communicated via the wireless transceiver during a same continuous phase of the powered-up state as traffic associated with the first application.