Measurement of keyhole effect in a wireless multiple-input multiple-output (MIMO) channel
(2003) In IEEE Communications Letters 7(8). p.373-375- Abstract
- It has been predicted theoretically that for some environments, the capacity of wireless multiple-input multiple-output systems can become very low even for uncorrelated signals; this effect has been termed "keyhole" or "pinhole." In this letter, We present the (to our knowledge) first measurement of this effect. The measurements are done in a controlled indoor environment, with transmitter and receiver in two adjacent rooms. One of the rooms is shielded, and propagation to, the other room can occur only through a hole or a waveguide in the wall. We find that only the waveguide leads to an unambiguous keyhole, while a hole of the same size still allows multimodal propagation. Measurement of amplitude statistics also confirm theoretical... (More)
- It has been predicted theoretically that for some environments, the capacity of wireless multiple-input multiple-output systems can become very low even for uncorrelated signals; this effect has been termed "keyhole" or "pinhole." In this letter, We present the (to our knowledge) first measurement of this effect. The measurements are done in a controlled indoor environment, with transmitter and receiver in two adjacent rooms. One of the rooms is shielded, and propagation to, the other room can occur only through a hole or a waveguide in the wall. We find that only the waveguide leads to an unambiguous keyhole, while a hole of the same size still allows multimodal propagation. Measurement of amplitude statistics also confirm theoretical predictions. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/303930
- author
- Almers, Peter LU ; Tufvesson, Fredrik LU and Molisch, Andreas LU
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- eigenvalues, double complex Gaussian, keyhole, multiple-input multiple-output (MIMO), measurements
- in
- IEEE Communications Letters
- volume
- 7
- issue
- 8
- pages
- 373 - 375
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000184670800009
- scopus:0042388435
- ISSN
- 1089-7798
- DOI
- 10.1109/LCOMM.2003.815655
- language
- English
- LU publication?
- yes
- id
- 0c0c3fcc-c7c3-4c2f-93f1-fa7027980409 (old id 303930)
- date added to LUP
- 2016-04-01 15:23:48
- date last changed
- 2022-03-30 01:04:23
@article{0c0c3fcc-c7c3-4c2f-93f1-fa7027980409, abstract = {{It has been predicted theoretically that for some environments, the capacity of wireless multiple-input multiple-output systems can become very low even for uncorrelated signals; this effect has been termed "keyhole" or "pinhole." In this letter, We present the (to our knowledge) first measurement of this effect. The measurements are done in a controlled indoor environment, with transmitter and receiver in two adjacent rooms. One of the rooms is shielded, and propagation to, the other room can occur only through a hole or a waveguide in the wall. We find that only the waveguide leads to an unambiguous keyhole, while a hole of the same size still allows multimodal propagation. Measurement of amplitude statistics also confirm theoretical predictions.}}, author = {{Almers, Peter and Tufvesson, Fredrik and Molisch, Andreas}}, issn = {{1089-7798}}, keywords = {{eigenvalues; double complex Gaussian; keyhole; multiple-input multiple-output (MIMO); measurements}}, language = {{eng}}, number = {{8}}, pages = {{373--375}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Communications Letters}}, title = {{Measurement of keyhole effect in a wireless multiple-input multiple-output (MIMO) channel}}, url = {{https://lup.lub.lu.se/search/files/4383229/504256}}, doi = {{10.1109/LCOMM.2003.815655}}, volume = {{7}}, year = {{2003}}, }