Various embodiments of the present disclosure include a communication device having first circuitry and second circuitry. The first circuitry is capable of operating in a plurality of modes. The second circuitry is capable of determining whether to transition operation of the first circuitry from a sleep mode to a non-sleep mode based at least in part on whether a non-informational characteristic of a received communication signal matches a non-informational characteristic of a particular one of a plurality of communication protocols.