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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sanchez-Heredia, J.D. Gruden, M. Valenzuela-Valdes, J.F. Sanchez-Hernandez, D.A. |
| Copyright Year | 2002 |
| Abstract | Mode-stirred chambers (MSCs) consist of one or more resonant cavities coupled in some way in order to allow the measurement of different antenna parameters such as antenna efficiency, correlation, diversity gain, or multiple-input multiple-output (MIMO) capacity, among others. In a single-cavity MSC, also known as a reverberation chamber (RC), the environment is isotropic and the amplitude of the signal is Rayleigh distributed. Real environments, however, rarely follow an isotropic Rayleigh-fading scenario. Previous results have shown that a Rician-fading emulation can be obtained via hardware modification using an RC. The different methods lack from an accurate emulation performance and are strongly dependent upon chamber size and antenna configurations. With the innate complexity of more-than-one-cavity MSC, the coupling structure generates sample sets that are complex enough so as to contain different clusters with diverse fading characteristics. This letter presents a novel method to accurately emulate a more realistic Rician-fading distribution from a Rayleigh-fading distribution by selecting parts of the sample set that forms different statistical ensembles using a complex two-cavity multi-iris-coupled MSC. Sample selection is performed using a genetic algorithm. Results demonstrate the potential of MSCs for versatile MIMO fading emulation and over-the-air (OTA) testing. The method is patent protected by EMITE Ing., Murcia, Spain. |
| Sponsorship | IEEE Antennas and Propagation Society |
| Starting Page | 409 |
| Ending Page | 412 |
| Page Count | 4 |
| File Size | 396593 |
| File Format | |
| ISSN | 15361225 |
| Volume Number | 9 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fading Emulation MIMO Rayleigh channels Resonance Antenna measurements Gain measurement Diversity methods Reverberation chamber Hardware multiple-input–multiple-output (MIMO) capacity Diversity gain mode-stirred chamber (MSC) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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