基于陣列域大尺度衰落模型的1-bit大規(guī)模MIMO系統(tǒng)性能的分析
doi: 10.11999/JEIT161248
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2.
(北京交通大學(xué)寬帶無線移動通信研究所 北京 100044) ②(東南大學(xué)移動通信國家重點(diǎn)實(shí)驗(yàn)室 南京 211189)
北京市科技新星計(jì)劃(Z161100004916068),中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金(2017JBM306),國家自然科學(xué)基金(61471027),東南大學(xué)移動通信國家重點(diǎn)實(shí)驗(yàn)室開放研究基金(2014D05, 2017D01),北京市自然科學(xué)基金(4152043)
Performance Analysis for One-bit Massive MIMO Systems Based on Large Scale Fading Model in Antenna-array Domain
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2.
(Institute of Broadband Wireless Mobile Communications, Beijing Jiaotong University, Beijing 100044, China)
Beijing Nova Programme (Z161100004916068), Fundamental Research Funds for the Central Universities (2017JBM306), The Natioual Natural Science Foundation of China (61471027), The Research Fund of National Mobile Communications Research Laboratory, Southeast University (2014D05, 2017D01), Beijing Natural Science Foundation Project (4152043)
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摘要: 該文研究在陣列域大尺度衰落模型下,基站端天線僅僅配備了1-bit精度的模數(shù)轉(zhuǎn)換器時(shí)大規(guī)模MIMO系統(tǒng)的性能。首先給出了系統(tǒng)采用最大比合并接收機(jī)時(shí),用戶上行可達(dá)速率的閉式表達(dá)式。然后分析了1-bit系統(tǒng)的功率效率性能,并將該1-bit系統(tǒng)與傳統(tǒng)的具有無窮精度模數(shù)轉(zhuǎn)換器的系統(tǒng)性能相比較。通過計(jì)算機(jī)仿真驗(yàn)證了該文的分析結(jié)果。該文指出基站端可以安裝更多的天線來彌補(bǔ)1-bit精度的模數(shù)轉(zhuǎn)換器所造成的性能損失。
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關(guān)鍵詞:
- 大規(guī)模MIMO /
- 1-bit量化 /
- 陣列域大尺度衰落模型 /
- 最大比合并 /
- 可達(dá)速率
Abstract: Based on the large scale fading channel model in antenna-array domain, this paper investigates the uplink performance for a massive MIMO system, where each antenna is equipped with one-bit Analog-to-Digital Converters (ADCs). A closed-form expression for the uplink achievable rate with Maximum Ratio Combining (MRC) receiver is derived, and the power efficiency performance, as well as the comparison between the one-bit systems and the conventional system with infinite resolution ADCs are investigated. Numerical results are presented to verify the analytical results. -
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