Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links
Cooperative transmission (CT) is an effective technique to achieve spatial diversity in fading environments, where spatially separated wireless nodes collaborate to form a virtual antenna array or virtual multiple-input-multiple-output (VMISO) link. Many authors model the path loss of the VMISO link...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/650236 |
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| author | Haejoon Jung Mary Ann Weitnauer |
| author_facet | Haejoon Jung Mary Ann Weitnauer |
| author_sort | Haejoon Jung |
| collection | DOAJ |
| description | Cooperative transmission (CT) is an effective technique to achieve spatial diversity in fading environments, where spatially separated wireless nodes collaborate to form a virtual antenna array or virtual multiple-input-multiple-output (VMISO) link. Many authors model the path loss of the VMISO link as though the elements in the virtual antenna array are colocated,
even though they are spread out. In this paper, we show that the spreading causes a signal-to-noise-ratio (SNR) penalty of up to 3 dB. Moreover, in the high SNR regime, we show that the
performance degradation caused by the path-loss disparity can be characterized equivalently by log-normal distribution. We use these two observations to propose a new CT link model, expressed
in closed form as an outage probability based on the log-normal shadowing model. The quality of the model is evaluated by a statistical test based on Kolmogorov-Smirnov method. |
| format | Article |
| id | doaj-art-5560a116320f432bb79955f49e876de7 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-5560a116320f432bb79955f49e876de72025-02-03T01:22:39ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/650236650236Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output LinksHaejoon Jung0Mary Ann Weitnauer1Department of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USADepartment of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USACooperative transmission (CT) is an effective technique to achieve spatial diversity in fading environments, where spatially separated wireless nodes collaborate to form a virtual antenna array or virtual multiple-input-multiple-output (VMISO) link. Many authors model the path loss of the VMISO link as though the elements in the virtual antenna array are colocated, even though they are spread out. In this paper, we show that the spreading causes a signal-to-noise-ratio (SNR) penalty of up to 3 dB. Moreover, in the high SNR regime, we show that the performance degradation caused by the path-loss disparity can be characterized equivalently by log-normal distribution. We use these two observations to propose a new CT link model, expressed in closed form as an outage probability based on the log-normal shadowing model. The quality of the model is evaluated by a statistical test based on Kolmogorov-Smirnov method.http://dx.doi.org/10.1155/2014/650236 |
| spellingShingle | Haejoon Jung Mary Ann Weitnauer Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links International Journal of Antennas and Propagation |
| title | Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links |
| title_full | Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links |
| title_fullStr | Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links |
| title_full_unstemmed | Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links |
| title_short | Characterization of Path-Loss Disparity in Virtual Multiple-Input-Single-Output Links |
| title_sort | characterization of path loss disparity in virtual multiple input single output links |
| url | http://dx.doi.org/10.1155/2014/650236 |
| work_keys_str_mv | AT haejoonjung characterizationofpathlossdisparityinvirtualmultipleinputsingleoutputlinks AT maryannweitnauer characterizationofpathlossdisparityinvirtualmultipleinputsingleoutputlinks |