What is it about?
This paper has studied the power allocation problem for NOMA under the maximization of the sum rate criteria with QoS requirements for each user. We have also proved that NOMA can achieve spectral efficiency advantage over the OMA scheme in the high SNR region while accompany with disadvantage in the low SNR region.
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Why is it important?
It is instructive for designning the range of application for NOMA in practical systems.
Perspectives
The most important point for this paper is the proof for the spectral efficiency advantage/disadvantage in the high/low SNR region for NOMA over OMA(TDMA).
Wenbo Cai
Peking University
Read the Original
This page is a summary of: Power Allocation Scheme and Spectral Efficiency Analysis for Downlink NOMA Systems , IET Signal Processing, January 2017, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-spr.2016.0340.
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