
For FullText PDF, please login, if you are a member of IEICE,
or go to Pay Per View on menu list, if you are a nonmember of IEICE.

EnergyEfficient Power Allocation with Rate Proportional Fairness Constraint in NonOrthogonal Multiple Access Systems
Zhengqiang WANG Chenchen WEN Zifu FAN Xiaoyu WAN
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E101A
No.4
pp.734737 Publication Date: 2018/04/01
Online ISSN: 17451337
DOI: 10.1587/transfun.E101.A.734
Type of Manuscript: LETTER Category: Communication Theory and Signals Keyword: nonorthogonal multiple access (NOMA), power allocation, rate proportional fairness, fractional programming,
Full Text: PDF>>
Summary:
In this letter, we consider the power allocation scheme with rate proportional fairness to maximize energy efficiency in the downlink the nonorthogonal multiple access (NOMA) systems. The optimization problem of energy efficiency is a nonconvex optimization problem, and the fractional programming is used to transform the original problem into a series of optimization subproblems. A twolayer iterative algorithm is proposed to solve these subproblems, in which power allocation with the fixed energy efficiency is achieved in the inner layer, and the optimal energy efficiency of the system is obtained by the bisection method in the outer layer. Simulation results show the effectiveness of the proposed algorithm.

