Energy‐Efficiency Maximization in Backscatter Communication‐Based Non‐Orthogonal Multiple Access System: Dinkelbach and Successive Convex Approximation Approaches
Dingjia Lin,
Tianqi Wang,
Kaidi Wang
et al.
Abstract:This paper investigates a backscatter communication (BackCom) based non‐orthogonal multiple access (NOMA) system in a multiple‐input and single‐output (MISO) scenario, where two decoding methods are deployed, including the sum‐capacity approach and QR decomposition. The goal is to maximize energy efficiency (EE) through the optimization of the beamforming matrix and the reflection coefficient of the BackCom devices. Two algorithms, Dinkelbach based on penalty semidefinite relaxation (SDR) and successive convex… Show more
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