Improved Channel Estimation for Selective RAKE Receiver in LR-UWB System 


Vol. 34,  No. 1, pp. 138-144, Jan.  2009


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  Abstract

This paper proposes an efficient scheme to estimate the channel parameters such as channel gain and delay for the IEEE802.15.4a LR-UWB systems. Sliding window (SW) method is generally used for the channel estimation of LR-UWB systems, which extracts the channel parameters by performing the cross-correlation with the repeatedly transmitted signal. However, the SW method experiences the severe performance degradation because the cross-correlation is performed just once for the received signal. In this paper, we propose a novel channel estimation scheme, which can achieve a great performance gain by performing the cross-correlation repeatedly with the repeated receive signal. In order to verify the performance gain of the proposed scheme, we performed the intensive simulation with the Saleh-Valenzuela channel model. Simulation results show that the proposed scheme has a performance improvement of 4㏈ compared to the conventional SW channel estimation scheme.

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  Cite this article

[IEEE Style]

S. Kwon, Y. Jung, J. Kim, "Improved Channel Estimation for Selective RAKE Receiver in LR-UWB System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 1, pp. 138-144, 2009. DOI: .

[ACM Style]

Soonkoo Kwon, Yunho Jung, and Jaeseok Kim. 2009. Improved Channel Estimation for Selective RAKE Receiver in LR-UWB System. The Journal of Korean Institute of Communications and Information Sciences, 34, 1, (2009), 138-144. DOI: .

[KICS Style]

Soonkoo Kwon, Yunho Jung, Jaeseok Kim, "Improved Channel Estimation for Selective RAKE Receiver in LR-UWB System," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 1, pp. 138-144, 1. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880