Open AccessModeing and Robust Continuous Power Allocation Strategy with Imperfect Channel State Information in Cognitive Radio Networks
Author(s) -
Zhong Chen,
Jun Cai,
Fu Rong Zhu,
Rui Guo,
Niu Gengtian,
Yanjie Liu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1746/1/012013
Subject(s) - cognitive radio , computer science , transmitter power output , imperfect , channel state information , channel (broadcasting) , interference (communication) , power (physics) , power control , computer network , telecommunications , mathematical optimization , transmitter , wireless , mathematics , linguistics , philosophy , physics , quantum mechanics
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.