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A Low Complexity Channel Estimation Algorithm Based on Barker Code for IEEE802.11

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3 Author(s)
Anding Wang ; Coll. of Inf. & Electron. Zhejiang, Gongshang Univ., Hangzhou ; Yuyang Qiu ; Lili Lin

In this paper we propose a computationally efficient channel estimation algorithm for the IEEE802.11 system which is based on the Barker code. The method exploits the correlation results of the Barker code matched filter at the receiver and estimates the channel impulse response with the strong regulatory of them. In order to be optimal, this estimator performs the combination of the initial estimation linearly to correct the results. Moreover the average of multiple symbols is attached to reduce the noise influence. As a result, it has a significantly lower complexity and better tracing capability than previously methods. Simulation results confirm the excellent estimation performance of our method, which is thus an attractive add-on to WLAN receivers in high-mobility scenarios.

Published in:

Computing, Communication, Control, and Management, 2008. CCCM '08. ISECS International Colloquium on  (Volume:2 )

Date of Conference:

3-4 Aug. 2008