Abstract: In Frequency Division Duplex (FDD) massive multiple-input multiple-output (MIMO) systems, it is vital for the base station (BS) to obtain accurate downlink channel state information (CSI).

Abstract: Hazardous and remote environments, such as volcanic regions and disaster zones, require regular monitoring due to the significant risks they pose. Innovative solutions like aerial and mobile ...

Q: While thinking through the operating scheme for my World War II-era (1944) model railroad, I wondered where troop trains sat in timetable priority. Obviously they were extras, but were they bumped ...

ELKHART, Ind., Feb. 23, 2026 /PRNewswire/ -- THOR Industries, Inc. (NYSE: THO), the world's largest manufacturer of recreational vehicles, today announced a significant evolution of its North American ...

Real-time customer signals are everywhere. Every click, product interaction, service inquiry and loyalty event generates data that promises insight into intent and behavior. Yet, for many businesses, ...

Though I’ve been in the hobby for more than 70 years, I’m still amazed at the number of new products being released. Gone are the days when the Lionel or American Flyer “wish books” would fill our ...