eprintid: 10055173
rev_number: 37
eprint_status: archive
userid: 608
dir: disk0/10/05/51/73
datestamp: 2018-09-03 15:31:31
lastmod: 2021-12-01 23:28:35
status_changed: 2018-10-26 11:10:15
type: proceedings_section
metadata_visibility: show
creators_name: Han, Y
creators_name: Hsu, T-H
creators_name: Wen, C-K
creators_name: Wong, K-K
creators_name: Jin, S
title: Efficient downlink channel reconstruction for FDD transmission systems
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
keywords: Downlink, Uplink, Delays, Training, OFDM, Channel estimation, Estimation
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: In this paper, a novel scheme is proposed to reconstruct downlink channel for frequency-division-duplex (FDD) systems from uplink channel state information (CSI) with limited feedback. We adopt the Newtonized orthogonal matching pursuit (NOMP) algorithm to estimate the frequency-independent parameters of the delays of a multi-path channel through uplink training. The gain of each path is further refined through downlink training using least squares (LS) algorithm and sent back to the base station (BS). Using the uplink-estimated delays and the downlink-refined gains, the BS reconstructs the downlink multipath channel. Simulations and over-the-air tests are conducted to examine the performance of the proposed NOMP-LS-based reconstruction scheme for the downlink channel. Results confirm the effectiveness of the NOMP-LS scheme and that the reconstructed channel is accurate.
date: 2018-06-07
date_type: published
publisher: IEEE
official_url: https://doi.org/10.1109/WOCC.2018.8372727
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1570405
doi: 10.1109/WOCC.2018.8372727
isbn_13: 978-1-5386-4959-6
medium: 2379-1276
lyricists_name: Wong, Kai-Kit
lyricists_id: KWONG98
actors_name: Wong, Kai-Kit
actors_id: KWONG98
actors_role: owner
full_text_status: public
series: Wireless and Optical Communication Conference
publication: 2018 27th Wireless and Optical Communication Conference, WOCC 2018
volume: 27
event_title: 27th Wireless and Optical Communication Conference (WOCC), 30 April-1 May 2018, Hualien, Taiwan
event_location: Hualien, Taiwan
event_dates: 30 April-1 May 2018
book_title: Proceedings of the 27th Wireless and Optical Communication Conference (WOCC 2018)
citation:        Han, Y;    Hsu, T-H;    Wen, C-K;    Wong, K-K;    Jin, S;      (2018)    Efficient downlink channel reconstruction for FDD transmission systems.                     In:  Proceedings of the 27th Wireless and Optical Communication Conference (WOCC 2018).    IEEE       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10055173/1/Wong_Efficient%20downlink%20channel%20reconstruction%20for%20FDD%20transmission%20systems_AAM.pdf