The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
본 논문에서는 기지국(BS)과 목적지에서 동위상 및 직교 위상(IQ) 불균형 상태에서 다운링크 C-NOMA(협력적 비직교 다중 접속) 시스템의 총 전송률(SR) 최대화 문제를 조사합니다. BS는 불완전한 IQ 불균형 상태에서 HD-AF(반이중 증폭 및 전달) 릴레이를 통해 사용자와 통신합니다. 합계 속도 최대화 문제는 각 사용자에 대한 서비스 품질(QoS) 제약 조건을 갖춘 비볼록 최적화로 공식화됩니다. 먼저 비볼록 SR 최대화 문제를 동등한 문제로 변환하기 위해 변수 대체 방법을 사용합니다. 그런 다음 시스템의 SR을 최대화하기 위해 SCA(Successive Convex Approximation)를 기반으로 하는 공동 전력 및 속도 할당 알고리즘이 제안됩니다. 시뮬레이션 결과는 알고리즘이 C-OMA(Cooperative Orthogonal Multiple Access) 방식과 비교하여 C-NOMA의 SR을 향상시킬 수 있음을 검증합니다.
Xiaoyu WAN
Chongqing University of Posts and Telecommunications
Yu WANG
Chongqing University of Posts and Telecommunications
Zhengqiang WANG
Chongqing University of Posts and Telecommunications
Zifu FAN
Chongqing University of Posts and Telecommunications
Bin DUO
Chengdu University of Technology
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부
Xiaoyu WAN, Yu WANG, Zhengqiang WANG, Zifu FAN, Bin DUO, "Sum Rate Maximization for Cooperative NOMA System with IQ Imbalance" in IEICE TRANSACTIONS on Communications,
vol. E106-B, no. 7, pp. 571-577, July 2023, doi: 10.1587/transcom.2022EBP3179.
Abstract: In this paper, we investigate the sum rate (SR) maximization problem for downlink cooperative non-orthogonal multiple access (C-NOMA) system under in-phase and quadrature-phase (IQ) imbalance at the base station (BS) and destination. The BS communicates with users by a half-duplex amplified-and-forward (HD-AF) relay under imperfect IQ imbalance. The sum rate maximization problem is formulated as a non-convex optimization with the quality of service (QoS) constraint for each user. We first use the variable substitution method to transform the non-convex SR maximization problem into an equivalent problem. Then, a joint power and rate allocation algorithm is proposed based on successive convex approximation (SCA) to maximize the SR of the systems. Simulation results verify that the algorithm can improve the SR of the C-NOMA compared with the cooperative orthogonal multiple access (C-OMA) scheme.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2022EBP3179/_p
부
@ARTICLE{e106-b_7_571,
author={Xiaoyu WAN, Yu WANG, Zhengqiang WANG, Zifu FAN, Bin DUO, },
journal={IEICE TRANSACTIONS on Communications},
title={Sum Rate Maximization for Cooperative NOMA System with IQ Imbalance},
year={2023},
volume={E106-B},
number={7},
pages={571-577},
abstract={In this paper, we investigate the sum rate (SR) maximization problem for downlink cooperative non-orthogonal multiple access (C-NOMA) system under in-phase and quadrature-phase (IQ) imbalance at the base station (BS) and destination. The BS communicates with users by a half-duplex amplified-and-forward (HD-AF) relay under imperfect IQ imbalance. The sum rate maximization problem is formulated as a non-convex optimization with the quality of service (QoS) constraint for each user. We first use the variable substitution method to transform the non-convex SR maximization problem into an equivalent problem. Then, a joint power and rate allocation algorithm is proposed based on successive convex approximation (SCA) to maximize the SR of the systems. Simulation results verify that the algorithm can improve the SR of the C-NOMA compared with the cooperative orthogonal multiple access (C-OMA) scheme.},
keywords={},
doi={10.1587/transcom.2022EBP3179},
ISSN={1745-1345},
month={July},}
부
TY - JOUR
TI - Sum Rate Maximization for Cooperative NOMA System with IQ Imbalance
T2 - IEICE TRANSACTIONS on Communications
SP - 571
EP - 577
AU - Xiaoyu WAN
AU - Yu WANG
AU - Zhengqiang WANG
AU - Zifu FAN
AU - Bin DUO
PY - 2023
DO - 10.1587/transcom.2022EBP3179
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E106-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2023
AB - In this paper, we investigate the sum rate (SR) maximization problem for downlink cooperative non-orthogonal multiple access (C-NOMA) system under in-phase and quadrature-phase (IQ) imbalance at the base station (BS) and destination. The BS communicates with users by a half-duplex amplified-and-forward (HD-AF) relay under imperfect IQ imbalance. The sum rate maximization problem is formulated as a non-convex optimization with the quality of service (QoS) constraint for each user. We first use the variable substitution method to transform the non-convex SR maximization problem into an equivalent problem. Then, a joint power and rate allocation algorithm is proposed based on successive convex approximation (SCA) to maximize the SR of the systems. Simulation results verify that the algorithm can improve the SR of the C-NOMA compared with the cooperative orthogonal multiple access (C-OMA) scheme.
ER -