Abstract
This letter studies the throughput maximization problem for a two-hop block fading relay channel over an infinite time horizon. The decode-and-forward relaying scheme is adopted and the non-ideal circuit power is considered. By examining the Karush–Kuhn–Tucker conditions, the optimal power allocation is shown to be with a variational water-filling form, which is jointly determined by the instantaneous channel state information (CSI) of both the two links. Moreover, the decision threshold for transmission is derived offline as a function of the non-ideal circuit power, the power budget, and the statistical CSI. Finally, numerical results show that the proposed scheme outperforms the reference one.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.