Modeing and Robust Continuous Power Allocation Strategy with Imperfect Channel State Information in Cognitive Radio Networks
Zhong Chen, Jun Cai, Feng Zhu, Rui Guo, Niu Gengtian, Yanjie Liu · Journal of Physics Conference Series · 2021
Abstract A robust continuous power allocation strategy for secondary users (SUs) with imperfect channel state information (CSI) in the cognitive radio networks is proposed. Modeling the error of CSI by normbounded distribution, we address the optimization of the transmit power allocation at SU under the constraints of average transmit power at SU and average interference power at the primary user. Simulation results show that the proposed robust rools can improve the system performance of the SU.