RF Chain Reduction for MIMO Systems: A Hardware Prototype | |
Gong TR(宫铁瑞)1,2,3; Shlezinger, Nir4; Ioushua, Shahar Stein5; Namer, Moshe6; Yang ZJ(杨志家)1,2; Eldar, Yonina C.4 | |
刊名 | IEEE Systems Journal |
2020 | |
卷号 | 14期号:4页码:5296-5307 |
关键词 | Channel estimation hybrid receivers multiple-input multiple-output (MIMO) communications |
ISSN号 | 1932-8184 |
产权排序 | 1 |
英文摘要 | Radio frequency (RF) chain circuits play a major role in digital receiver architectures, allowing passband communication signals to be processed in baseband. When operating at high frequencies, these circuits tend to be costly. This increased cost imposes a major limitation on future multiple-input–multiple-output (MIMO) communication technologies. A common approach to mitigate the increased cost is to utilize hybrid architectures, in which the received signal is combined in analog into a lower dimension, thus reducing the number of RF chains. In this article we study the design and hardware implementation of hybrid architectures via minimizing channel estimation error. We first derive the optimal solution for complex-gain combiners and propose an alternating optimization algorithm for phase-shifter combiners. We then present a hardware prototype implementing analog combining for RF chain reduction. The prototype consists of a specially designed configurable combining board as well as a dedicated experimental setup. Our hardware prototype allows us evaluating the effect of analog combining in MIMO systems using actual communication signals. The experimental study, which focuses on channel estimation accuracy in MIMO channels, demonstrates that using the proposed prototype, the achievable channel estimation performance is within a small gap in a statistical sense from that obtained using a costly receiver in which each antenna is connected to a dedicated RF chain. |
资助项目 | National Key Research and Development Program of China[2017YFA0700304] ; Israel Science Foundation[0100101] ; European Union's Horizon 2020 research and innovation program[646804-ERC-COG-BNYQ] |
WOS关键词 | MILLIMETER-WAVE COMMUNICATIONS ; ARCHITECTURES ; CHANNELS ; DESIGN |
WOS研究方向 | Computer Science ; Engineering ; Operations Research & Management Science ; Telecommunications |
语种 | 英语 |
WOS记录号 | WOS:000596009700065 |
资助机构 | National Key Research and Development Program of China under Grant 2017YFA0700304 ; Israel Science Foundation under Grant 0100101 ; European Union’s Horizon 2020 research and innovation program under Grant 646804-ERC-COG-BNYQ |
内容类型 | 期刊论文 |
源URL | [http://ir.sia.cn/handle/173321/26655] |
专题 | 沈阳自动化研究所_工业控制网络与系统研究室 |
通讯作者 | Shlezinger, Nir; Yang ZJ(杨志家) |
作者单位 | 1.Key Laboratory of Networked Control Systems, State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China 2.Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.Faculty of Mathematics and Computer Science, Weizmann Institute of Science, Rehovot 76100, Israel 5.School of Electrical Engineering, Tel Aviv University, Tel Aviv 6997801, Israel 6.Faculty of Electrical Engineering, Technion, Haifa 32000, Israel |
推荐引用方式 GB/T 7714 | Gong TR,Shlezinger, Nir,Ioushua, Shahar Stein,et al. RF Chain Reduction for MIMO Systems: A Hardware Prototype[J]. IEEE Systems Journal,2020,14(4):5296-5307. |
APA | Gong TR,Shlezinger, Nir,Ioushua, Shahar Stein,Namer, Moshe,Yang ZJ,&Eldar, Yonina C..(2020).RF Chain Reduction for MIMO Systems: A Hardware Prototype.IEEE Systems Journal,14(4),5296-5307. |
MLA | Gong TR,et al."RF Chain Reduction for MIMO Systems: A Hardware Prototype".IEEE Systems Journal 14.4(2020):5296-5307. |
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