Abstract: An apparatus for a communication device, the apparatus may include a processor configured to: obtain channel metrics for a plurality of radio communication channels, each obtained channel metric is associated with a respective radio communication channel of the plurality of radio communication channels, generate a plurality of channel hopping sequences, each channel hopping sequence is representative of an allocation of the plurality of radio communication channels for a plurality of time slots, wherein a number of time slots allocated for each radio communication channel within each channel hopping sequence is based on the respective obtained channel metric, and select one of the plurality of channel hopping sequences based on a predefined criterion to communicate with a further communication device.

Abstract: A solid fuel, portable stove reduces smoke emissions and provides for a high temperature of combustion in a compact and easily manufacturable design. A main housing (11) comprises a combustion chamber (12) for containing fuel for combustion and a fan (50) configured to force air into the combustion chamber. A rechargeable electrical power source (40) is used for driving the fan (50) and a thermoelectric element (31) provides power to the fan and to the rechargeable power source. In one embodiment, the thermoelectric element also provides excess output power to a connected device (D) such as a low voltage white light emitting diode, thereby providing a self illuminating, rechargeable stove which is suitable for sunset or early evening cooking.