Measurement of keyhole effect in a wireless multiple-input multiple-output (MIMO) channel
Author
Summary, in English
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.
Publishing year
2003
Language
English
Pages
373-375
Publication/Series
IEEE Communications Letters
Volume
7
Issue
8
Full text
- Available as PDF - 266 kB
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Document type
Journal article
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Keywords
- eigenvalues
- double complex Gaussian
- keyhole
- multiple-input multiple-output (MIMO)
- measurements
Status
Published
ISBN/ISSN/Other
- ISSN: 1089-7798