Radio spectrum is pricey. Operators drop billions at auction to lock down licensed frequency bands, and every single frequency counts. Dynamic Spectrum Sharing (DSS) was built to address exactly this, ...

Optical modulators typically rely on weak nonlinear light–matter interactions to modulate light with light. But using surface plasmons to excite quantum dots, researchers at the California Institute ...

Abstract: Precoded index modulation (PIM) has emerged as an innovative approach to assist multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems in carrying ...

Abstract: This paper investigates range-depth localization of an orthogonal frequency-division multiplexing (OFDM) source using a single hydrophone, which serves as a portable scheme suitable for ...