Optimal Power Allocation and Rate Combination in X-type NOMA Wireless Relay Networks

We study an X-type non-orthogonal multiple access (NOMA) wireless relay network that consists of an uplink multiple access channel and a downlink broadcast channel. We formulate a non-convex optimization problem to obtain an optimal power allocation factor and an optimal rate vector that maximize th...

Full description

Saved in:
Bibliographic Details
Published in:IEEE wireless communications letters 2023-11, Vol.12 (11), p.1-1
Main Author: Gau, Rung-Hung
Format: Article
Language:English
Subjects:
broadcast channel
Convexity
multiple access channel
NOMA
non-convex optimization
non-orthogonal multiple access
Nonorthogonal multiple access
Optimization
power allocation
rate combination
Relay networks
Resource management
Uplink
Wireless networks
Wireless relay networks
Wireless sensor networks
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study an X-type non-orthogonal multiple access (NOMA) wireless relay network that consists of an uplink multiple access channel and a downlink broadcast channel. We formulate a non-convex optimization problem to obtain an optimal power allocation factor and an optimal rate vector that maximize the end-to-end sum rate. To solve the optimization problem, we prove four theorems that contain closed-form expressions for the optimal solutions. We also use computer simulation to obtain some numerical results.
ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2023.3303330