基于NOMA的RIS與DF中繼對(duì)比研究
2021年電子技術(shù)應(yīng)用第9期
李小雙1,劉秋妍1,張忠皓1,李福昌1,李佳俊2
1.中國(guó)聯(lián)合網(wǎng)絡(luò)通信有限公司研究院,北京100048;2.中國(guó)聯(lián)通華盛通信有限公司,北京100031
摘要: 面向5G-Advanced和6G移動(dòng)通信系統(tǒng)深度覆蓋需求,提出基于非正交多址接入(NOMA)的智能超表面(RIS)和解碼轉(zhuǎn)發(fā)(DF)中繼解決方案,通過(guò)系統(tǒng)建模、容量分析和能效分析,對(duì)比基于NOMA的RIS和DF中繼方案的性能增益。典型場(chǎng)景下的數(shù)值仿真與對(duì)比分析表明,隨著陣元數(shù)目的增大,相比于DF中繼,RIS方案的能效增益逐漸增大。
中圖分類(lèi)號(hào): TN929.5
文獻(xiàn)標(biāo)識(shí)碼: A
DOI:10.16157/j.issn.0258-7998.212020
中文引用格式: 李小雙,劉秋妍,張忠皓,等. 基于NOMA的RIS與DF中繼對(duì)比研究[J].電子技術(shù)應(yīng)用,2021,47(9):5-8.
英文引用格式: Li Xiaoshuang,Liu Qiuyan,Zhang Zhonghao,et al. Comparison between RIS and DF relay with NOMA[J]. Application of Electronic Technique,2021,47(9):5-8.
文獻(xiàn)標(biāo)識(shí)碼: A
DOI:10.16157/j.issn.0258-7998.212020
中文引用格式: 李小雙,劉秋妍,張忠皓,等. 基于NOMA的RIS與DF中繼對(duì)比研究[J].電子技術(shù)應(yīng)用,2021,47(9):5-8.
英文引用格式: Li Xiaoshuang,Liu Qiuyan,Zhang Zhonghao,et al. Comparison between RIS and DF relay with NOMA[J]. Application of Electronic Technique,2021,47(9):5-8.
Comparison between RIS and DF relay with NOMA
Li Xiaoshuang1,Liu Qiuyan1,Zhang Zhonghao1,Li Fuchang1,Li Jiajun2
1.China Unicom Research Institute,Beijing 100048,China;2.China Unicom Huasheng Co.,Ltd.,Beijing 100031,China
Abstract: In this paper,non-orthogonal multiple access(NOMA) schemes with reconfigurable intelligent surface(RIS) and decode-and-forward(DF) relay are proposed according to deep coverage requirements in 5G-Advanced and 6G. Then, system model of NOMA-RIS and NOMA-DF relay schemes are established. System analysis of NOMA-RIS and NOMA-DF relay are compared, including capacity and energy efficient. Numerical simulation and comparison analysis in typical scenarios show that RIS obtains more energy efficiency gain than DF relay as the number of array elements increases.
Key words : wireless network;6G;reconfigurable intelligent surface(RIS);decode-and-forward relay
0 引言
新一輪科技革命和產(chǎn)業(yè)變革在創(chuàng)造新的產(chǎn)品和服務(wù)供給的同時(shí),也對(duì)加快新型基礎(chǔ)設(shè)施建設(shè)提出新要求。中共中央政治局常務(wù)委員會(huì)召開(kāi)會(huì)議提出,加快5G網(wǎng)絡(luò)、數(shù)據(jù)中心等新型基礎(chǔ)設(shè)施建設(shè)進(jìn)度。未來(lái)十年,移動(dòng)通信網(wǎng)絡(luò)將支持千倍容量增長(zhǎng)和無(wú)處不在的無(wú)線(xiàn)連接。與此同時(shí),高度復(fù)雜的網(wǎng)絡(luò)、高成本的硬件和日益增加的能源消耗成為制約未來(lái)無(wú)線(xiàn)通信面臨的關(guān)鍵問(wèn)題[1]。
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作者信息:
李小雙1,劉秋妍1,張忠皓1,李福昌1,李佳俊2
(1.中國(guó)聯(lián)合網(wǎng)絡(luò)通信有限公司研究院,北京100048;2.中國(guó)聯(lián)通華盛通信有限公司,北京100031)
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