Development and Experimental Validation of an Ultra-wideband Channel Sounder
(2019) 13th European Conference on Antennas and Propagation, EuCAP 2019- Abstract
Vector network analyzer (VNA) has been extensively utilized for radio channel sounding purposes. Due to its slow channel sounding speed, it has been mainly used for channel measurements in static propagation scenarios. The main limitation with VNA based channel sounder is its small measurement range, due to signal attenuation in the coaxial cable setup. Employing radio over fiber (RoF) can effectively eliminate the cable loss and hence enables the VNA for long range channel sounding. However, optical cables are sensitive to phase changes in optical cables in practical usage scenarios. In this paper, two phase correction strategies, i.e. two-branch scheme and bi-directional scheme, are discussed and experimentally validated to remove the... (More)
Vector network analyzer (VNA) has been extensively utilized for radio channel sounding purposes. Due to its slow channel sounding speed, it has been mainly used for channel measurements in static propagation scenarios. The main limitation with VNA based channel sounder is its small measurement range, due to signal attenuation in the coaxial cable setup. Employing radio over fiber (RoF) can effectively eliminate the cable loss and hence enables the VNA for long range channel sounding. However, optical cables are sensitive to phase changes in optical cables in practical usage scenarios. In this paper, two phase correction strategies, i.e. two-branch scheme and bi-directional scheme, are discussed and experimentally validated to remove the random phase change in the cable. The bi-directional scheme is shown to be highly effective in removing the phase change in the measurements. The virtual array VNA channel sounder employing RoF technique and phase correction scheme is highly attractive, since it supports channel sounding with arbitrary frequency carrier setting, ultra-wideband, large-scale (virtual) antenna settings with a large measurement range.
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- author
- Fan, Wei ; Mbugua, Allan Wainaina ; Cai, Xuesong LU and Olesen, Kim
- publishing date
- 2019-03
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 13th European Conference on Antennas and Propagation, EuCAP 2019
- article number
- 8739294
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- 13th European Conference on Antennas and Propagation, EuCAP 2019
- conference location
- Krakow, Poland
- conference dates
- 2019-03-31 - 2019-04-05
- external identifiers
-
- scopus:85068478614
- ISBN
- 9781538681275
- 9788890701887
- language
- English
- LU publication?
- no
- additional info
- Funding Information: Dr. Wei Fan would like to acknowledge the financial assistance from Danish council for independent research (grant number: DFF611100525), the VIRTUSUO project, funded by the Innovation Fund Denmark and Huawei technologies. Publisher Copyright: © 2019 European Association on Antennas and Propagation.
- id
- 6958410f-b9a7-4704-9456-21ee94749efa
- alternative location
- https://ieeexplore.ieee.org/document/8739294
- date added to LUP
- 2021-11-22 22:45:04
- date last changed
- 2024-07-28 01:29:22
@inproceedings{6958410f-b9a7-4704-9456-21ee94749efa, abstract = {{<p>Vector network analyzer (VNA) has been extensively utilized for radio channel sounding purposes. Due to its slow channel sounding speed, it has been mainly used for channel measurements in static propagation scenarios. The main limitation with VNA based channel sounder is its small measurement range, due to signal attenuation in the coaxial cable setup. Employing radio over fiber (RoF) can effectively eliminate the cable loss and hence enables the VNA for long range channel sounding. However, optical cables are sensitive to phase changes in optical cables in practical usage scenarios. In this paper, two phase correction strategies, i.e. two-branch scheme and bi-directional scheme, are discussed and experimentally validated to remove the random phase change in the cable. The bi-directional scheme is shown to be highly effective in removing the phase change in the measurements. The virtual array VNA channel sounder employing RoF technique and phase correction scheme is highly attractive, since it supports channel sounding with arbitrary frequency carrier setting, ultra-wideband, large-scale (virtual) antenna settings with a large measurement range.</p>}}, author = {{Fan, Wei and Mbugua, Allan Wainaina and Cai, Xuesong and Olesen, Kim}}, booktitle = {{13th European Conference on Antennas and Propagation, EuCAP 2019}}, isbn = {{9781538681275}}, language = {{eng}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Development and Experimental Validation of an Ultra-wideband Channel Sounder}}, url = {{https://ieeexplore.ieee.org/document/8739294}}, year = {{2019}}, }