Uniform Linear Arrays With Optimized Inter-Element Spacing for LOS Massive MIMO

Farsaei, Amirashkan (author): Technische Universiteit Eindhoven,Eindhoven University of Technology

Amani, Navid, 1985 (author): Chalmers tekniska högskola,Chalmers University of Technology

Maaskant, Rob, 1978 (author): Chalmers tekniska högskola,Chalmers University of Technology

Alvarado, Alex (author): Technische Universiteit Eindhoven,Eindhoven University of Technology

Willems, Frans M. J. (author): Technische Universiteit Eindhoven,Eindhoven University of Technology

(creator_code:org_t)

2021
2021
English.
In: IEEE Communications Letters. - 1558-2558 .- 1089-7798. ; 25:2, s. 613-616

Related links:: https://doi.org/10.1...; show more...; https://research.cha...; show less...

Abstract Subject headings

In this letter, a uniform linear array (ULA) is proposed for line-of-sight massive multiple-input-multiple-output (MIMO). It is assumed that the number of antennas is fixed. For a given ULA with an arbitrary inter-element spacing, the probability that the correlation among the channel vectors of two users being above a threshold value is derived. The inter-element spacing of the proposed ULA is the one for which the aforementioned probability is minimized. To show the effectiveness of the proposed ULA, simulation results for two scenarios are given for a 64-antenna ULA that serves 6 single-antenna users. By using the proposed ULA instead of conventional half-wavelength ULA, 5th percentile sum-rate for zero-forcing precoder is improved by 9.90 bits/channel use in first scenario without dropping, and by 1.43 bits/channel use in second scenario with dropping 1 user.

TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)

By the author/editor: Farsaei, Amirash ...; Amani, Navid, 19 ...; Maaskant, Rob, 1 ...; Gustavsson, Ulf; Alvarado, Alex; Willems, Frans M ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Telecommunicatio ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Communication Sy ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Signal Processin ...

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