Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"peak-power reduction"”.
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Peak power reduction algorithms in ADSL modems
This thesis investigates peak-to-average ratio (PAR) reduction techniques for multicarrier modulation systems, such as discrete multitone (DMT) modems and orthogonal frequency-division multiplexed (OFDM) terrestrial broadcast transmitters. Through simulation and test implementation on a …
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Shape Up: Peak -Power Reduction via Constellation Shaping
… and hyperdiamond shaping reduce the unclipped peak power by 5 to 7 dB with no loss of data rate and with a symbol error rate that is virtually identical to that of conventional systems. With a clipping rate of 10-8, they still provide up to 2.8 dB of peak-power reduction. Algebraic shaping …
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Peak power reduction in orthogonal frequency division multiplexing transmitters
… This thesis describes the issue of the Peak to Average Power Ratio (PAPR) in OFDM which is a major drawback, and presents new and variations to existing algorithms to reduce it.
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Fast peak-power reduction for MIMO-OFDM systems with diversity
A robust peak-power reduction technique called active constellation extension (ACE) reduces the peak-to-average power ratio (PAPR) of single-input single-output (SISO) orthogonal frequency-division modulated (OFDM) signals by extending the outer constellation points in a way that minimizes the PAPR …