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Impulse noise mitigation technique based on decision margin adaptation for MC-SS transmission

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1 Author(s)
Bogucka, H. ; Inst. of Electron. & Telecommun., Poznan Tech. Univ., Poland

In this paper, multicarrier spread-spectrum radio transmission is taken into account, in which signal energy spreading is based on Walsh-Hadamard transform. The considered system operates in wireless indoor environment, in the presence of both, the additive white Gaussian noise and the impulse noise. For such a transmission, unbalanced effect of the impulse noise on distinct symbols can be expected. Below, we propose a method of decision-margin adaptation, appropriately tailored for each symbol and the spreading sequence assigned to it. This method is based on erasures of unreliable symbols and the application of Reed-Solomon codes with erasure-correction capability. Simulation results show good erasure performance and thus, the proposed method should also result in the increased BER performance of the considered transmission scheme.

Published in:

Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on  (Volume:4 )

Date of Conference:

5-8 Sept. 2004