Abstract: This paper introduces a multicarrier communication technique termed orthogonal chirp-frequency division multiplexing (OCFDM). It relies on a unitary transform named discrete modular chirp ...

Abstract: In this article, we propose a multiple-input-multiple-output (MIMO) configuration for chirp spread spectrum (CSS) modulation integrated with the permutation matrix modulation (PMM) scheme, ...

We may earn commission from links on this page, but we only recommend products we back. Why Trust Us? If you are unfamiliar with muscle stimulators, or stim machines as they are often called, you aren ...

Add Yahoo as a preferred source to see more of our stories on Google. We all recognize smoke alarms and sirens, but according to Reddit, there are plenty of other sounds that should make you stop in ...

Tucked away in Weymouth, Massachusetts is Chirp, a father-daughter design workshop born with the aim of creating architecturally inspired birdhouses. Referencing the great modernists as well as ...

If you think laughter and comedy are reserved strictly for humans, you’d be wrong. A study in the late 1990s showed that creatures like rats emit ultrasonic vocalizations while playing with or ...