eprintid: 1762
rev_number: 8
eprint_status: archive
userid: 12
dir: disk0/00/00/17/62
datestamp: 2016-05-30 02:54:03
lastmod: 2016-05-30 02:54:03
status_changed: 2016-05-30 02:54:03
type: conference_item
metadata_visibility: show
creators_name: Nguyen, Cong Luong
creators_name: Mokraoui, Anissa
creators_name: Duhamel, Pierre
creators_name: Nguyen, Linh Trung
creators_id: congluongbk@gmail.com
creators_id: anissa.mokraoui@univ-paris13.fr
creators_id: pierre.duhamel@lss.supelec.fr
creators_id: linhtrung@vnu.edu.vn
title: Joint map time and frequency synchronization in presence of imperfect channel state information
ispublished: pub
subjects: Communications
subjects: ECE
divisions: fac_fet
abstract: This paper deals with synchronization problem in IEEE 802.11a wireless system. In addition to traditional training sequences, the SIGNAL field of the physical frame can be considered as a new source of information. Indeed the receiver is able to predict the SIGNAL unknown parts relying on the knowledge provided by the CSMA/CA protocol during the negotiation of the transmission medium reservation. The exchanged RtS control frame used jointly with the bit-rate adaptation algorithm to the channel helps the receiver not only to predict the SIGNAL field but also to get information on the channel state. Based on this knowledge, joint MAP channel, time and frequency synchronization algorithm is carried out. Moreover to estimate the residual time offset, a timing metric in frequency domain is performed by minimizing the average of transmission errors in the presence of all channel estimation errors. The performance in terms of probability of synchronization failure is shown to be improved compared to existing algorithms.
date: 2014
date_type: published
official_url: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6844297
full_text_status: public
pres_type: paper
pagerange: 5749-5753
event_title: ICASSP: the 39th IEEE International Conference on Acoustics, Speech, and Signal Processing
event_location: Florence, Italy
event_dates: 4-9 May 2014
event_type: conference
refereed: TRUE
citation:   Nguyen, Cong Luong and Mokraoui, Anissa and Duhamel, Pierre and Nguyen, Linh Trung  (2014) Joint map time and frequency synchronization in presence of imperfect channel state information.  In: ICASSP: the 39th IEEE International Conference on Acoustics, Speech, and Signal Processing, 4-9 May 2014, Florence, Italy.     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1762/1/p5790-nguyen.pdf