Low-sampling-rate ultra-wideband channel estimation using a bounded-data-uncertainty approach

Handle URI:
http://hdl.handle.net/10754/565846
Title:
Low-sampling-rate ultra-wideband channel estimation using a bounded-data-uncertainty approach
Authors:
Ballal, Tarig; Al-Naffouri, Tareq Y.
Abstract:
This paper proposes a low-sampling-rate scheme for ultra-wideband channel estimation. In the proposed scheme, P pulses are transmitted to produce P observations. These observations are exploited to produce channel impulse response estimates at a desired sampling rate, while the ADC operates at a rate that is P times less. To avoid loss of fidelity, the interpulse interval, given in units of sampling periods of the desired rate, is restricted to be co-prime with P. This condition is affected when clock drift is present and the transmitted pulse locations change. To handle this situation and to achieve good performance without using prior information, we derive an improved estimator based on the bounded data uncertainty (BDU) model. This estimator is shown to be related to the Bayesian linear minimum mean squared error (LMMSE) estimator. The performance of the proposed sub-sampling scheme was tested in conjunction with the new estimator. It is shown that high reduction in sampling rate can be achieved. The proposed estimator outperforms the least squares estimator in most cases; while in the high SNR regime, it also outperforms the LMMSE estimator. © 2014 IEEE.
KAUST Department:
Electrical Engineering Program
Publisher:
Institute of Electrical & Electronics Engineers (IEEE)
Journal:
2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Conference/Event name:
2014 15th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014
Issue Date:
1-Jan-2014
DOI:
10.1109/SPAWC.2014.6941904
Type:
Conference Paper
Appears in Collections:
Conference Papers; Electrical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorBallal, Tarigen
dc.contributor.authorAl-Naffouri, Tareq Y.en
dc.date.accessioned2015-08-11T13:43:08Zen
dc.date.available2015-08-11T13:43:08Zen
dc.date.issued2014-01-01en
dc.identifier.doi10.1109/SPAWC.2014.6941904en
dc.identifier.urihttp://hdl.handle.net/10754/565846en
dc.description.abstractThis paper proposes a low-sampling-rate scheme for ultra-wideband channel estimation. In the proposed scheme, P pulses are transmitted to produce P observations. These observations are exploited to produce channel impulse response estimates at a desired sampling rate, while the ADC operates at a rate that is P times less. To avoid loss of fidelity, the interpulse interval, given in units of sampling periods of the desired rate, is restricted to be co-prime with P. This condition is affected when clock drift is present and the transmitted pulse locations change. To handle this situation and to achieve good performance without using prior information, we derive an improved estimator based on the bounded data uncertainty (BDU) model. This estimator is shown to be related to the Bayesian linear minimum mean squared error (LMMSE) estimator. The performance of the proposed sub-sampling scheme was tested in conjunction with the new estimator. It is shown that high reduction in sampling rate can be achieved. The proposed estimator outperforms the least squares estimator in most cases; while in the high SNR regime, it also outperforms the LMMSE estimator. © 2014 IEEE.en
dc.publisherInstitute of Electrical & Electronics Engineers (IEEE)en
dc.titleLow-sampling-rate ultra-wideband channel estimation using a bounded-data-uncertainty approachen
dc.typeConference Paperen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journal2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)en
dc.conference.date22 June 2014 through 25 June 2014en
dc.conference.name2014 15th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014en
kaust.authorAl-Naffouri, Tareq Y.en
kaust.authorBallal, Tarigen
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