Measurement-based stochastic models for channel transition in underground subway environments
(2015) 9th European Conference on Antennas and Propagation, EuCAP 2015- Abstract
In this contribution, a recently conducted measurement campaign in underground subway environments is introduced. The downlink signals in an in-service UMTS network are collected in the subway carriage by using an Universal Software-defined Radio Peripheral (USRP) equipment and used to extract the channel impulse responses (CIRs) between a user equipment and UMTS stations. A high-resolution parameter estimation algorithm derived based on the SAGE principle is applied to estimate the delays, Doppler frequencies and complex attenuations of multiple propagation paths from the CIRs. Based on the multipath parameter estimates, the composite delay and Doppler frequency spreads are calculated. Significant transitions are observed for the... (More)
In this contribution, a recently conducted measurement campaign in underground subway environments is introduced. The downlink signals in an in-service UMTS network are collected in the subway carriage by using an Universal Software-defined Radio Peripheral (USRP) equipment and used to extract the channel impulse responses (CIRs) between a user equipment and UMTS stations. A high-resolution parameter estimation algorithm derived based on the SAGE principle is applied to estimate the delays, Doppler frequencies and complex attenuations of multiple propagation paths from the CIRs. Based on the multipath parameter estimates, the composite delay and Doppler frequency spreads are calculated. Significant transitions are observed for the channels when the subway increases its speed moving from a platform to a tunnel. The statistics of the time-variations of the aforementioned parameters during the transitions are extracted which constitute a stochastic model for channel transitions in underground subway environments.
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- author
- Cai, Xuesong LU ; Yin, Xuefeng ; He, Yongyu ; Duan, Weiming and Boque, Silvia Ruiz
- publishing date
- 2015-08-27
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- channel transition, delay spread, Doppler frequency spread, path number, subway, the SAGE algorithm, UMTS, Underground
- host publication
- 2015 9th European Conference on Antennas and Propagation, EuCAP 2015
- article number
- 7228893
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- 9th European Conference on Antennas and Propagation, EuCAP 2015
- conference location
- Lisbon, Portugal
- conference dates
- 2015-05-13 - 2015-05-17
- external identifiers
-
- scopus:84949633299
- ISBN
- 9788890701856
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2015 EurAAP.
- id
- b485860b-e5f4-40d8-9852-2c2461213689
- alternative location
- https://ieeexplore.ieee.org/document/7228893
- date added to LUP
- 2021-11-22 22:32:25
- date last changed
- 2022-04-27 06:16:44
@inproceedings{b485860b-e5f4-40d8-9852-2c2461213689, abstract = {{<p>In this contribution, a recently conducted measurement campaign in underground subway environments is introduced. The downlink signals in an in-service UMTS network are collected in the subway carriage by using an Universal Software-defined Radio Peripheral (USRP) equipment and used to extract the channel impulse responses (CIRs) between a user equipment and UMTS stations. A high-resolution parameter estimation algorithm derived based on the SAGE principle is applied to estimate the delays, Doppler frequencies and complex attenuations of multiple propagation paths from the CIRs. Based on the multipath parameter estimates, the composite delay and Doppler frequency spreads are calculated. Significant transitions are observed for the channels when the subway increases its speed moving from a platform to a tunnel. The statistics of the time-variations of the aforementioned parameters during the transitions are extracted which constitute a stochastic model for channel transitions in underground subway environments.</p>}}, author = {{Cai, Xuesong and Yin, Xuefeng and He, Yongyu and Duan, Weiming and Boque, Silvia Ruiz}}, booktitle = {{2015 9th European Conference on Antennas and Propagation, EuCAP 2015}}, isbn = {{9788890701856}}, keywords = {{channel transition; delay spread; Doppler frequency spread; path number; subway; the SAGE algorithm; UMTS; Underground}}, language = {{eng}}, month = {{08}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Measurement-based stochastic models for channel transition in underground subway environments}}, url = {{https://ieeexplore.ieee.org/document/7228893}}, year = {{2015}}, }