WhatsApp is secretly developing new privacy features that will revolutionize communication. But until WhatsApp rolls out a native option to hide your phone number from other users, you can use a few ...

Abstract: As the electromagnetic spectrum becomes increasingly crowded, the random frequency and pulse repetition interval agile (RFPA) radar signal is proposed, which can make the transmitted ...

KENNESAW, Ga. (AP) — As a deadly storm that brought crippling ice to the South and deep snow to the Northeast finally swirled out to sea, it represented a light at the end of the tunnel for some.

Abstract: This paper studies asynchronous repetition slotted ALOHA (a-ReSA) for massive random access. Each user’s packet is repeated and allocated to randomly selected slots. Then, the users transmit ...

New census estimates show the effects of falling birthrates and President Trump’s anti-immigration policies. As his term continues, immigration is expected to drop even further. By Jeff Adelson and ...