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Abstract: In this letter, we conduct an experiment of quantum noise stream cipher scheme based on 3-channel-QAM mapping and DFTs-OFDM in optical back-to-back and 160km standard single mode fiber. The ...

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 13 years, which has given me a front row seat for the DSLR to mirrorless transition, the ...

The two speedy executions and two death sentences (one suspended) meted out to several men who committed mass-casualty attacks late last year have attracted thoughtful commentary from Chinese ...

The main purpose of CFT is to select the parameters of digital protocols that will activate the decryption of encrypted voice traffic. Please read the instructions about How To Get Started with CFT v1 ...

Check out our soundbars to guides to see our top recommendations: Most TVs include integrated digital tuners that can receive free over-the-air broadcasts when paired with an antenna and a coaxial ...