On Optimality of Second-Highest Policy for Opportunistic Multichannel Access.

We consider an opportunistic communication system in which one transmitter communicates with one receiver by one of N two-state Markov channels. The transmitter probes a channel before access. In particular, the transmitter does not access the probed channel if it is found to be in a bad state. Taking into account the probing cost, the transmitter will transmit over the chosen channel for a fixed ...