Fast algorithm of LTE RACH detection based on Sparse Fourier Transform
(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:
https://lup.lub.lu.se/record/d9459c5b-4351-4e58-b25f-3ed0c159049a
- author
- Fedorov, Aleksei LU ; Lyashev, Vladimir and Rapoport, Lev
- publishing date
- 2015
- 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}}, }