Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers

Jihyung Kim, Dong Seung Kwon, Sangho Nam, Daesik Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper analyzes the degradation effect of null subcarriers in orthogonal frequency division multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a new channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed channel estimation is guaranteed by using an interpolation of the estimated channel in the frequency domain that comes before the channel estimation in the time domain.

Original languageEnglish
Title of host publication2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
Pages1092-1096
Number of pages5
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall - Baltimore, MD, United States
Duration: 2007 Sep 302007 Oct 3

Other

Other2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
CountryUnited States
CityBaltimore, MD
Period07/9/3007/10/3

Fingerprint

Channel estimation
Orthogonal frequency division multiplexing
Degradation
Maximum likelihood estimation
Interpolation

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Kim, J., Kwon, D. S., Nam, S., & Hong, D. (2007). Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers. In 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall (pp. 1092-1096). [4349885] https://doi.org/10.1109/VETECF.2007.236
Kim, Jihyung ; Kwon, Dong Seung ; Nam, Sangho ; Hong, Daesik. / Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers. 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall. 2007. pp. 1092-1096
@inproceedings{cb23186d5bd2469188797734c4dea377,
title = "Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers",
abstract = "This paper analyzes the degradation effect of null subcarriers in orthogonal frequency division multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a new channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed channel estimation is guaranteed by using an interpolation of the estimated channel in the frequency domain that comes before the channel estimation in the time domain.",
author = "Jihyung Kim and Kwon, {Dong Seung} and Sangho Nam and Daesik Hong",
year = "2007",
month = "12",
day = "1",
doi = "10.1109/VETECF.2007.236",
language = "English",
isbn = "1424402646",
pages = "1092--1096",
booktitle = "2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall",

}

Kim, J, Kwon, DS, Nam, S & Hong, D 2007, Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers. in 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall., 4349885, pp. 1092-1096, 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall, Baltimore, MD, United States, 07/9/30. https://doi.org/10.1109/VETECF.2007.236

Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers. / Kim, Jihyung; Kwon, Dong Seung; Nam, Sangho; Hong, Daesik.

2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall. 2007. p. 1092-1096 4349885.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers

AU - Kim, Jihyung

AU - Kwon, Dong Seung

AU - Nam, Sangho

AU - Hong, Daesik

PY - 2007/12/1

Y1 - 2007/12/1

N2 - This paper analyzes the degradation effect of null subcarriers in orthogonal frequency division multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a new channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed channel estimation is guaranteed by using an interpolation of the estimated channel in the frequency domain that comes before the channel estimation in the time domain.

AB - This paper analyzes the degradation effect of null subcarriers in orthogonal frequency division multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a new channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed channel estimation is guaranteed by using an interpolation of the estimated channel in the frequency domain that comes before the channel estimation in the time domain.

UR - http://www.scopus.com/inward/record.url?scp=47649091858&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=47649091858&partnerID=8YFLogxK

U2 - 10.1109/VETECF.2007.236

DO - 10.1109/VETECF.2007.236

M3 - Conference contribution

SN - 1424402646

SN - 9781424402649

SP - 1092

EP - 1096

BT - 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall

ER -

Kim J, Kwon DS, Nam S, Hong D. Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers. In 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall. 2007. p. 1092-1096. 4349885 https://doi.org/10.1109/VETECF.2007.236