Sensitivity of channel estimation using B-splines to mismatched Doppler frequency

Junruo Zhang; Rami Khal; Yury Zakharov

doi:10.1109/ISWCS.2010.5624399

Sensitivity of channel estimation using B-splines to mismatched Doppler frequency

Junruo Zhang, Rami Khal, Yury Zakharov

Electronic Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

In this paper, we investigate the pilot assisted maximum likelihood (ML) and minimum mean square error (MMSE) channel estimators using B-splines in time-variant Rayleigh fading channels following Jakes' model. The analytical mean square error (MSE), including noise-free modeling error and statistical estimation error, of the channel estimators is derived. We also derive the overall MSE of the MMSE channel estimator with mismatched estimation of the Doppler frequency. The results show that the MMSE estimator using B-splines has little sensitivity to overestimation of the Doppler frequency. However, when the Doppler frequency is underestimated, even slightly, its performance degrades significantly and becomes much worse than that of the ML channel estimator.

Original language	English
Pages	946-950
Number of pages	5
DOIs	https://doi.org/10.1109/ISWCS.2010.5624399
Publication status	Published - Sep 2010
Event	Wireless Communication Systems (ISWCS), 2010 - York, United Kingdom Duration: 19 Sep 2010 → 22 Sep 2010

Conference

Conference	Wireless Communication Systems (ISWCS), 2010
Country/Territory	United Kingdom
City	York
Period	19/09/10 → 22/09/10

Access to Document

10.1109/ISWCS.2010.5624399

Cite this

@conference{7517d896c84c4cf3a10de931cdc9a3ae,

title = "Sensitivity of channel estimation using B-splines to mismatched Doppler frequency",

abstract = "In this paper, we investigate the pilot assisted maximum likelihood (ML) and minimum mean square error (MMSE) channel estimators using B-splines in time-variant Rayleigh fading channels following Jakes' model. The analytical mean square error (MSE), including noise-free modeling error and statistical estimation error, of the channel estimators is derived. We also derive the overall MSE of the MMSE channel estimator with mismatched estimation of the Doppler frequency. The results show that the MMSE estimator using B-splines has little sensitivity to overestimation of the Doppler frequency. However, when the Doppler frequency is underestimated, even slightly, its performance degrades significantly and becomes much worse than that of the ML channel estimator.",

author = "Junruo Zhang and Rami Khal and Yury Zakharov",

year = "2010",

month = sep,

doi = "10.1109/ISWCS.2010.5624399",

language = "English",

pages = "946--950",

note = "Wireless Communication Systems (ISWCS), 2010 ; Conference date: 19-09-2010 Through 22-09-2010",

}

TY - CONF

T1 - Sensitivity of channel estimation using B-splines to mismatched Doppler frequency

AU - Zhang, Junruo

AU - Khal, Rami

AU - Zakharov, Yury

PY - 2010/9

Y1 - 2010/9

N2 - In this paper, we investigate the pilot assisted maximum likelihood (ML) and minimum mean square error (MMSE) channel estimators using B-splines in time-variant Rayleigh fading channels following Jakes' model. The analytical mean square error (MSE), including noise-free modeling error and statistical estimation error, of the channel estimators is derived. We also derive the overall MSE of the MMSE channel estimator with mismatched estimation of the Doppler frequency. The results show that the MMSE estimator using B-splines has little sensitivity to overestimation of the Doppler frequency. However, when the Doppler frequency is underestimated, even slightly, its performance degrades significantly and becomes much worse than that of the ML channel estimator.

AB - In this paper, we investigate the pilot assisted maximum likelihood (ML) and minimum mean square error (MMSE) channel estimators using B-splines in time-variant Rayleigh fading channels following Jakes' model. The analytical mean square error (MSE), including noise-free modeling error and statistical estimation error, of the channel estimators is derived. We also derive the overall MSE of the MMSE channel estimator with mismatched estimation of the Doppler frequency. The results show that the MMSE estimator using B-splines has little sensitivity to overestimation of the Doppler frequency. However, when the Doppler frequency is underestimated, even slightly, its performance degrades significantly and becomes much worse than that of the ML channel estimator.

UR - http://www.scopus.com/inward/record.url?scp=78650086969&partnerID=8YFLogxK

U2 - 10.1109/ISWCS.2010.5624399

DO - 10.1109/ISWCS.2010.5624399

M3 - Paper

SP - 946

EP - 950

T2 - Wireless Communication Systems (ISWCS), 2010

Y2 - 19 September 2010 through 22 September 2010

ER -

Sensitivity of channel estimation using B-splines to mismatched Doppler frequency

Abstract

Conference

Access to Document

Other files and links

Cite this