Abstract: A new class of full diversity space-time codes is proposed that leads to a significantly smaller peak-to-mean envelope power ratio (PMEPR) compared to the recently invented diagonal ...

Abstract: This study explores the security of the existing space-time line code (STLC) scheme. A novel STLC-hopping scheme is proposed to ensure physical-layer secure communication of the STLC ...

Alien Invasion is a modern remake of the classic arcade shooter that revolutionized gaming. Pilot your spaceship in an epic battle to defend Earth from waves of increasingly challenging alien invaders ...

UNTIL now, the scientific community has lacked a method for globally observing the vertical motion of cloud and precipitation particles. This hidden movement — the chaotic dance of ice and rain as ...

It sounds like something out of a sci-fi movie, but it’s actually on the horizon. Here’s a rundown on the science and economics of getting all that technology into orbit. Last year, investors pumped ...

Investors have become increasingly concerned about software valuations, and as they consider the possibility that artificial intelligence-driven software solutions will replace the incumbents in the ...