Wireless LAN White Papers
Receiver-Oriented Clipping-Effect Mitigation in OFDM - A Worthy Approach?
Overview In this paper with make an attempt to quantify in the best practical sense how much the clipping loss can be mitigated. Surprisingly, even when using near optimal methods which involve significant calculations (i.e. they lie beyond near-term practicality) it finds that the mitigation ability of such extreme processing is rather limited. This paper shows that for an OFDM system with Low-Density Parity-Check (LDPC) coding, the ability to counter clipping gives an improvement of only 0.15 dB at 10.5 bit-error-rate. To wit, the cost of completely ignoring clipping in the receiver appears to be minimal. These results are intended to give insight into the potentially unrecoverable nature of the clipping phenomena and imply directing attention to transmit-oriented strategies.
| Publisher | University of Arizona | File Format | |
|---|---|---|---|
| Date Published | April 2005 | ||
| Format | White Papers | ||
| Topics | |||
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