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Fast algorithm of LTE RACH detection based on Sparse Fourier Transform

Fedorov, Aleksei LU ; Lyashev, Vladimir and Rapoport, Lev (2015) Third International Conference on Digital Information, Networking, and Wireless Communications (DINWC)
Abstract
In this paper, we present a fast algorithm of time synchronization between User Equipment (UE) and Base Station (BS) which is suitable for Long Term Evolution (LTE) Random Access Channel (RACH). The algorithm reduces the complexity more than 1.5 times. Further, if the SNR is above a threshold, the algorithm allows to extremely reduce the complexity of synchronization more than 3 times. The presented method uses the sparse nature of a time synchronization problem, where the spike of a cross-correlation between received signal and local RACH preamble indicates correct time delay.
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
sparse Fourier transform, RACH synchronization, LTE, , synchronization complexity, OFDM, sparse optimization
host publication
2015 Third International Conference on Digital Information, Networking, and Wireless Communications (DINWC)
pages
6 pages
conference name
Third International Conference on Digital Information, Networking, and Wireless Communications (DINWC)
conference location
Moscow, Russian Federation
conference dates
2015-02-03 - 2015-02-05
external identifiers
  • scopus:84926305411
ISBN
978-1-4799-6376-8
DOI
10.1109/DINWC.2015.7054221
language
English
LU publication?
no
id
d9459c5b-4351-4e58-b25f-3ed0c159049a
date added to LUP
2019-06-28 14:56:46
date last changed
2022-01-31 22:50:25
@inproceedings{d9459c5b-4351-4e58-b25f-3ed0c159049a,
  abstract     = {{In this paper, we present a fast algorithm of time synchronization between User Equipment (UE) and Base Station (BS) which is suitable for Long Term Evolution (LTE) Random Access Channel (RACH). The algorithm reduces the complexity more than 1.5 times. Further, if the SNR is above a threshold, the algorithm allows to extremely reduce the complexity of synchronization more than 3 times. The presented method uses the sparse nature of a time synchronization problem, where the spike of a cross-correlation between received signal and local RACH preamble indicates correct time delay.}},
  author       = {{Fedorov, Aleksei and Lyashev, Vladimir and Rapoport, Lev}},
  booktitle    = {{2015 Third International Conference on Digital Information, Networking, and Wireless Communications (DINWC)}},
  isbn         = {{978-1-4799-6376-8}},
  keywords     = {{sparse Fourier transform; RACH synchronization; LTE; , synchronization complexity; OFDM; sparse optimization}},
  language     = {{eng}},
  title        = {{Fast algorithm of LTE RACH detection based on Sparse Fourier Transform}},
  url          = {{https://lup.lub.lu.se/search/files/66751556/My_Huawei.pdf}},
  doi          = {{10.1109/DINWC.2015.7054221}},
  year         = {{2015}},
}