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Spectral Efficiency...
Spectral Efficiency of Multipair Massive MIMO Two-Way Relaying With Hardware Impairments
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- Zhang, Jiayi (författare)
- Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China.
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- Xue, Xipeng (författare)
- Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China.
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- Björnson, Emil, Professor, 1983- (författare)
- Linköpings universitet,Kommunikationssystem,Tekniska fakulteten
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- Ai, Bo (författare)
- Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China.
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- Jin, Shi (författare)
- Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China.
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Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China Kommunikationssystem (creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2018
- 2018
- Engelska.
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Ingår i: IEEE Wireless Communications Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 2162-2337 .- 2162-2345. ; 7:1, s. 14-17
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We consider a multipair massive multiple-input multiple-output (MIMO) two-way relaying system, where multiple pairs of single-antenna devices exchange data with the help of a relay employing a large number of antennas N. The relay consists of low-cost components that suffer from hardware impairments. A large-scale approximation of the spectral efficiency with maximum ratio processing is derived in closed form, and the approximation is tight as N -> infinity. It is revealed that for a fixed hardware quality, the impact of the hardware impairments vanishes asymptotically when N grows large. Moreover, the impact of the impairments may even vanish when the hardware quality is gradually decreased with N, if a scaling law is satisfied. Finally, numerical results validate that multipair massive MIMO two-way relaying systems are robust to hardware impairments at the relay.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Spectral efficiency
- massive MIMO
- two-way relaying
- hardware impairments
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