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Physical Layer Security and PAPR Mitigation in OFDM Systems

技术优势: More secure OFDM systemsImproved bit-error-rate performanceReduced costs

详细技术说明: USF inventors have devised a technique that inserts artificial/irrelevant data into the OFDM signal of the legitimate transmitter on the fading frequencies of the wireless channel between legitimate users . Thus, artificial data can be identified and ignored by the legitimate receiver unlike adversaries insensible of the legitimate users' channel and a secure information transmission is achieved. In addition to the security, the invention utilizes the irrelevant data for PAPR mitigation rather than inserting an arbitrary data. This way, PAPR reduction is also achieved without using any extra spectral resource and bit-error-rate performance of the communication is improved with the lower cost power amplifiers.

*Abstract: Researchers at the University of South Florida have developed a signal design technique combining physical layer security and peak-to-average power ratio (PAPR) mitigation for Orthogonal Frequency Division Multiplexing (OFDM) based waveforms.

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