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Chirped-OFDM for Transmissions Over Time-Varying Channels With Linear Delay/Doppler Spreading
White Paper This paper shows that the optimal digital communication strategy for transmissions over time-varying channels with spread function maximally concentrated along a line of the delay-Doppler domain consists in multiplexing... [14 Apr 2007]
Exploiting Time Diversity to Improve Block Spread OFDM
White Paper A method used to implement mutually orthogonal signals is called Orthogonal Frequency Division Multiplexing (OFDM) and this is done by setting up multiple carriers at a suitable frequency separation and modulating each... [11 Apr 2007]
Virus expert loses head to Belgian hacker
News She has also become something of a sex symbol for young male hackers who frequently try to contact her via her website - a kind of cyber-savvy Lara Croft figure, an image backed up after a silhouetted TV interview last... [16 Jul 2003]
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