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

Rung Hung Gau

doi:10.1109/LWC.2023.3303330

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

Rung Hung Gau^*

^*此作品的通信作者

電信工程研究所

研究成果: Article › 同行評審

2 引文斯高帕斯（Scopus）

摘要

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.

原文	English
頁（從 - 到）	1966-1970
頁數	5
期刊	IEEE Wireless Communications Letters
卷	12
發行號	11
DOIs	https://doi.org/10.1109/LWC.2023.3303330
出版狀態	Published - 1 11月 2023

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10.1109/LWC.2023.3303330

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abstract = "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.",

keywords = "Wireless relay networks, broadcast channel, multiple access channel, non-convex optimization, non-orthogonal multiple access, power allocation, rate combination",

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N2 - 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.

AB - 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.

KW - Wireless relay networks

KW - broadcast channel

KW - multiple access channel

KW - non-convex optimization

KW - non-orthogonal multiple access

KW - power allocation

KW - rate combination

UR - https://www.scopus.com/pages/publications/85167794387

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DO - 10.1109/LWC.2023.3303330

M3 - Article

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VL - 12

SP - 1966

EP - 1970

JO - IEEE Wireless Communications Letters

JF - IEEE Wireless Communications Letters

IS - 11

ER -

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

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