A Cognitive Period Optimization Algorithm Based on Interference Compensation Pricing
Yun Jia, Kun Cheng, Shichen Wu · 2018
This paper puts forward dynamic spectrum access in cognitive networks. Dynamic spectrum access is the key approach in a cognitive radio network which is adopted by a cognitive radio user to access the radio spectrum opportunistically. The interference caused by cognitive user in spectrum accessing process is a problem which can be studied. In this paper, a cognitive period optimization algorithm based on interference compensation pricing algorithm is proposed. The cognitive period optimization algorithm based on interference compensation pricing enables primary user to adjust the cognitive period according to the spectrum utilization of primary user. Moreover, the tradeoff between the interference probability for cognitive user and the channel idle probability is considered. Finally, some simulation results are given. The cognitive period optimization algorithm based on the interference compensation pricing can adjust the value of the cognitive period according to the spectrum utilization ratio of the primary user.