Method of reducing peak-to-average ratio in multi-carrier communications systems
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United States of America Patent
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Issued Date -
Jun 30, 2005
app pub date -
Oct 29, 2004
filing date -
Oct 30, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of reducing peak-to-average ratio in multi-carrier communications systems, involves extracting sign bits from a data stream for each sub-carrier; scrambling the sign bits; recombining the scrambled sign bits with a remaining portion of the incoming data stream to form a transmission data stream; modulating the transmission data stream; transmitting the modulated transmission data stream over a transmission medium; receiving the modulated transmission data stream; extracting the scrambled sign bits from the received transmission data stream; unscrambling the scrambled sign bits; recombining the scrambled sign bits with a remaining portion of the received transmission data stream to form a received data stream; and demodulating the received data stream.
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