Multi-channel Opportunistic Spectrum Access with Channel Switching Cost Awareness
Thant Zin Oo, Choong Seon Hong · 2014
Opportunistic spectrum access is an efficient solution to improve spectrum efficiency. In multi-channel opportunistic spectrum access, secondary users switch channels to escape from primary user occupied channels. This channel switching cost is significant. It depends on difference between current channel and the target switching channel. We build a model to reflect this switching cost based upon the existing protocols. We design a protocol and perform simulations to evaluate our proposal. 1.