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Measurement-based stochastic models for channel transition in underground subway environments

Cai, Xuesong LU ; Yin, Xuefeng ; He, Yongyu ; Duan, Weiming and Boque, Silvia Ruiz (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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Please use this url to cite or link to this publication:
author
; ; ; and
publishing date
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}},
}