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Estimation and compensation of clipping noise in OFDMA systems

Chen, Ying; Zhang, Jian (Andrew); Jayalath, A D S

Description

We propose an efficient and low-complexity scheme for estimating and compensating clipping noise in OFDMA systems. Conventional clipping noise estimation schemes, which need all demodulated data symbols, may become infeasible in OFDMA systems where a specific user may only know his own modulation scheme. The proposed scheme first uses equalized output to identify a limited number of candidate clips, and then exploits the information on known subcarriers to reconstruct clipped signal. Simulation...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/64802
Source: IEEE Transactions on Wireless Communications
DOI: 10.1109/TWC.2010.02.090128

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