Keyhole effects in MIMO wireless channels - measurements and theory

Peter Almers; Fredrik Tufvesson; Andreas Molisch

doi:10.1109/GLOCOM.2003.1258543

Keyhole effects in MIMO wireless channels - measurements and theory

Peter Almers, Fredrik Tufvesson, Andreas Molisch

Department of Electrical and Information Technology

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

It has been predicted theoretically that for some environments, the capacity of wireless MIMO systems can become very low, even for uncorrelated signals; this effect has been termed "keyhole" or "pinhole". We present the first unique measurements of this effect. The measurements were performed in a controlled indoor environment that was designed to obtain a keyhole. We analyze the limitations for measurement-based capacity calculations and keyhole investigations. We further present error bounds for the capacity and eigenvalue distributions due to measurement imperfections, such as finite signal-to-noise ratio and multipath leakage. The bounds are compared to the measurement results and show excellent agreement. Finally, we analyze the envelope distribution and find that, as expected from theory, it follows a double Rayleigh

Original language	English
Title of host publication	GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)
Publisher	IEEE - Institute of Electrical and Electronics Engineers Inc.
Pages	1781-1785
ISBN (Print)	0-7803-7974-8
DOIs	https://doi.org/10.1109/GLOCOM.2003.1258543
Publication status	Published - 2003
Event	IEEE Global Telecommunications Conference, 2003 - San Francisco, CA, United States Duration: 2003 Dec 1 → 2003 Dec 5

Conference

Conference	IEEE Global Telecommunications Conference, 2003
Abbreviated title	GLOBECOM'03
Country/Territory	United States
City	San Francisco, CA
Period	2003/12/01 → 2003/12/05

Subject classification (UKÄ)

Electrical Engineering, Electronic Engineering, Information Engineering

Free keywords

double Rayleigh distribution
capacity calculations
indoor environment
system capacity
MIMO wireless channel keyhole effects
MIMO wireless channel pinhole effects
eigenvalue distributions
multipath leakage
error bounds
signal-to-noise ratio

Access to Document

10.1109/GLOCOM.2003.1258543

Cite this

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title = "Keyhole effects in MIMO wireless channels - measurements and theory",

abstract = "It has been predicted theoretically that for some environments, the capacity of wireless MIMO systems can become very low, even for uncorrelated signals; this effect has been termed {"}keyhole{"} or {"}pinhole{"}. We present the first unique measurements of this effect. The measurements were performed in a controlled indoor environment that was designed to obtain a keyhole. We analyze the limitations for measurement-based capacity calculations and keyhole investigations. We further present error bounds for the capacity and eigenvalue distributions due to measurement imperfections, such as finite signal-to-noise ratio and multipath leakage. The bounds are compared to the measurement results and show excellent agreement. Finally, we analyze the envelope distribution and find that, as expected from theory, it follows a double Rayleigh",

keywords = "double Rayleigh distribution, capacity calculations, indoor environment, system capacity, MIMO wireless channel keyhole effects, MIMO wireless channel pinhole effects, eigenvalue distributions, multipath leakage, error bounds, signal-to-noise ratio",

author = "Peter Almers and Fredrik Tufvesson and Andreas Molisch",

year = "2003",

doi = "10.1109/GLOCOM.2003.1258543",

language = "English",

isbn = "0-7803-7974-8",

pages = "1781--1785",

booktitle = "GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "IEEE Global Telecommunications Conference, 2003, GLOBECOM'03 ; Conference date: 01-12-2003 Through 05-12-2003",

}

Almers, P, Tufvesson, F & Molisch, A 2003, Keyhole effects in MIMO wireless channels - measurements and theory. in GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489). IEEE - Institute of Electrical and Electronics Engineers Inc., pp. 1781-1785, IEEE Global Telecommunications Conference, 2003, San Francisco, CA, United States, 2003/12/01. https://doi.org/10.1109/GLOCOM.2003.1258543

Keyhole effects in MIMO wireless channels - measurements and theory. / Almers, Peter; Tufvesson, Fredrik; Molisch, Andreas.
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489). IEEE - Institute of Electrical and Electronics Engineers Inc., 2003. p. 1781-1785.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Keyhole effects in MIMO wireless channels - measurements and theory

AU - Almers, Peter

AU - Tufvesson, Fredrik

AU - Molisch, Andreas

PY - 2003

Y1 - 2003

N2 - It has been predicted theoretically that for some environments, the capacity of wireless MIMO systems can become very low, even for uncorrelated signals; this effect has been termed "keyhole" or "pinhole". We present the first unique measurements of this effect. The measurements were performed in a controlled indoor environment that was designed to obtain a keyhole. We analyze the limitations for measurement-based capacity calculations and keyhole investigations. We further present error bounds for the capacity and eigenvalue distributions due to measurement imperfections, such as finite signal-to-noise ratio and multipath leakage. The bounds are compared to the measurement results and show excellent agreement. Finally, we analyze the envelope distribution and find that, as expected from theory, it follows a double Rayleigh

AB - It has been predicted theoretically that for some environments, the capacity of wireless MIMO systems can become very low, even for uncorrelated signals; this effect has been termed "keyhole" or "pinhole". We present the first unique measurements of this effect. The measurements were performed in a controlled indoor environment that was designed to obtain a keyhole. We analyze the limitations for measurement-based capacity calculations and keyhole investigations. We further present error bounds for the capacity and eigenvalue distributions due to measurement imperfections, such as finite signal-to-noise ratio and multipath leakage. The bounds are compared to the measurement results and show excellent agreement. Finally, we analyze the envelope distribution and find that, as expected from theory, it follows a double Rayleigh

KW - double Rayleigh distribution

KW - capacity calculations

KW - indoor environment

KW - system capacity

KW - MIMO wireless channel keyhole effects

KW - MIMO wireless channel pinhole effects

KW - eigenvalue distributions

KW - multipath leakage

KW - error bounds

KW - signal-to-noise ratio

U2 - 10.1109/GLOCOM.2003.1258543

DO - 10.1109/GLOCOM.2003.1258543

M3 - Paper in conference proceeding

SN - 0-7803-7974-8

SP - 1781

EP - 1785

BT - GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - IEEE Global Telecommunications Conference, 2003

Y2 - 1 December 2003 through 5 December 2003

ER -

Keyhole effects in MIMO wireless channels - measurements and theory

Abstract

Conference

Subject classification (UKÄ)

Free keywords

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Cite this