A New Rate Splitting Strategy for Uplink CR-NOMA Systems

被引：39

作者：

Liu, Hongwu ^{[1
]}

Bai, Zhiquan ^{[2
]}

Lei, Hongjiang ^{[3
]}

Pan, Gaofeng ^{[4
]}

Kim, Kyeong Jin ^{[5
]}

Tsiftsis, Theodoros A. ^{[6
]}

机构：

[1] Shandong Jiaotong Univ, Sch Informat Sci & Elect Engn, Jinan 250357, Peoples R China

[2] Shandong Univ, Sch Informat Sci & Engn, Qingdao 266237, Peoples R China

[3] Chongqing Univ Posts & Telecommun, Chongqing Key Lab Mobile Commun Technol, Chongqing 400065, Peoples R China

[4] Beijing Inst Technol, Sch Cyberspace Sci & Technol, Beijing 100081, Peoples R China

[5] Mitsubishi Elect Res Labs, Cambridge, MA 02139 USA

[6] Jinan Univ, Sch Intelligent Syst Sci & Engn, Zhuhai 519070, Peoples R China

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2022年 / 71卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Rate splitting (RS); cognitive radio (CR); non-orthogonal multiple access (NOMA); outage probability;

D O I：

10.1109/TVT.2022.3166218

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In uplink non-orthogonal multiple access (NOMA) channels, the existing cooperative successive interference cancellation (SIC) and power control (PC) schemes lack the capability of achieving the full capacity region, which restricts the outage performance of uplink NOMA users. For the uplink cognitive radio inspired NOMA system, we propose a new rate splitting (RS) strategy to maximize the achievable rate of the secondary user without deteriorating the primary user's outage performance. Based on the interference threshold and its own channel gain, the secondary user adaptively conducts RS, transmit power allocation and SIC, which utilizes the transmit power efficiently. The closed-form expression for the outage probability is derived for the secondary user. Numerical results show that the proposed RS scheme achieves the best outage performance for the secondary user among the existing cooperative SIC and PC schemes.

引用

页码：7947 / 7951

页数：5

共 9 条

[1] A New QoS-Guarantee Strategy for NOMA Assisted Semi-Grant-Free Transmission [J].

Ding, Zhiguo ;

Schober, Robert ;

Poor, H. Vincent .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2021, 69 (11) :7489-7503

[2] Unveiling the Importance of SIC in NOMA Systems-Part II: New Results and Future Directions [J].

Ding, Zhiguo ;

Schober, Robert ;

Poor, H. Vincent .

IEEE COMMUNICATIONS LETTERS, 2020, 24 (11) :2378-2382

[3] Theoretical Analysis of the Dynamic Decode Ordering SIC Receiver for Uplink NOMA Systems [J].

Gao, Yichen ;

Xia, Bin ;

Xiao, Kexin ;

Chen, Zhiyong ;

Li, Xiaofan ;

Zhang, Sha .

IEEE COMMUNICATIONS LETTERS, 2017, 21 (10) :2246-2249

[4]

Higuchi K., 2013, IEEE VTS VEH TECHNOL, P1

[5] Rate Splitting for Uplink NOMA With Enhanced Fairness and Outage Performance [J].

Liu, Hongwu ;

Tsiftsis, Theodoros A. ;

Kim, Kyeong Jin ;

Kwak, Kyung Sup ;

Poor, H. Vincent .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2020, 19 (07) :4657-4670

[6] A rate-splitting approach to the Gaussian multiple-access channel [J].

Rimoldi, B ;

Urbanke, R .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1996, 42 (02) :364-375

[7] A New Design of Hybrid SIC for Improving Transmission Robustness in Uplink NOMA [J].

Sun, Yanshi ;

Ding, Zhiguo ;

Dai, Xuchu .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2021, 70 (05) :5083-5087

[8] Outage Performance Analysis for the Advanced SIC Receiver in Wireless NOMA Systems [J].

Xia, Bin ;

Wang, Jinglun ;

Xiao, Kexin ;

Gao, Yichen ;

Yao, Yao ;

Ma, Shaodan .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2018, 67 (07) :6711-6715

[9] Uplink Nonorthogonal Multiple Access in 5G Systems [J].

Zhang, Ningbo ;

Wang, Jing ;

Kang, Guixia ;

Liu, Yang .

IEEE COMMUNICATIONS LETTERS, 2016, 20 (03) :458-461

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