Abstract
In this paper, we derive and analyze a companding algorithm based on the hyperbolic tangent and inverse hyperbolic tangent functions for use in orthogonal frequency division multiplexing (OFDM) transceivers. Probability density functions (PDFs) that approximate the transmitted and received OFDM signals in the presence of additive white Gaussian noise (AWGN) are derived and used to analyze the degree of companding relative to the signal-to-noise ratio (SNR) and clipping level. A set of optimal companding linearity coefficients for the multiband OFDM (MB-OFDM) ultra-wideband (UWB) standard are presented.
Original language | English |
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Title of host publication | The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications, AusWireless 2007 |
DOIs | |
Publication status | Published - 2007 |
Event | 2nd International Conference on Wireless Broadband and Ultra Wideband Communications, AusWireless 2007 - Sydney, Australia Duration: 27 Aug 2007 → 30 Aug 2007 |
Other
Other | 2nd International Conference on Wireless Broadband and Ultra Wideband Communications, AusWireless 2007 |
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Country/Territory | Australia |
City | Sydney |
Period | 27/08/07 → 30/08/07 |