Abstract: Orthogonal time frequency space (OTFS) modulation, because of its excellent performance in fast time-varying channels, has been proposed as an alternative to orthogonal frequency-division ...
Abstract: In this paper, we present a novel orthogonal Doppler frequency modulation (ODFM) to meet the challenging requirements of high-mobility communications. Firstly, we revisit the basic concepts ...
A hybrid computer uses rotating mechanical beams for memory and electrical contacts for logic, performing reprogrammable computation through physical motion in environments where conventional ...