Abstract
In this paper, we investigate non-orthogonal multiple access (NOMA) network relying on wireless power transfer to prolong lifetime. The base station (BS) sends common signals to the relay with two functions (energy harvesting (EH) and signal processing) to further serve two NOMA users in downlink. Performance gap exists since different power allocation factor assigned from power splitting protocol adopted at the relay and such relay employs both amplify-and-forward (AF) and decode-and-forward schemes. To provide performance metrics, we prove formulas of the outage probability which is a function of transmit signal to noise ratio. Simulation results indicate specific parameters to adjust system performance of two user in the considered EH-NOMA system. This finding is important recommendation to design EH-NOMA which shows particular outage performance at required target rates.
Highlights
Non-orthogonal multiple access (NOMA) has proposed as a leading multiple access technique to implement various networks in the fifth generation (5G) wireless communication
We investigate non-orthogonal multiple access (NOMA) network relying on wireless power transfer to prolong lifetime
NOMA relying on non-orthogonal resource to serve many users in same time and this scheme is different with conventional orthogonal multiple access (OMA) relaying networks [3]-[6]
Summary
Non-orthogonal multiple access (NOMA) has proposed as a leading multiple access technique to implement various networks in the fifth generation (5G) wireless communication. Motivated by recent works [2], [7], [8], this paper considers a new cooperative EH-NOMA protocol, where the intermediate relay has not equipped the fixed power source and acts as a wireless powered relay with respect to optimal instantaneous rate. Such relay is designed to help signal forwarding to representative weak user and strong user in NOMA.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Bulletin of Electrical Engineering and Informatics
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.