Abstract: To address the problem of high complexity of channel estimation for orthogonal time frequency space (OTFS) systems, we propose a low complexity channel estimation method leveraging the ...

Shortest path algorithms sit at the heart of modern graph theory and many of the systems that move people, data, and goods around the world. After nearly seventy years of relying on the same classic ...

Google released the December 2025 core update today, the company announced. This is the third core update of 2025 and the fourth major Google algorithm update overall. Earlier this year, Google rolled ...

Astronauts Tom Stafford (left) and Wally Schirra (right) demonstrating with two model space crafts during an interview in the 1960s Donald Uhrbrock / Getty Images On December 15, 1965, NASA’s mission ...

Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly more than that for our moon, posing potential challenges for future crewed ...

US pressures Latin America to minimize ties with China China-Brazil lab to support astronomical and deep-space research BINGO telescope to track satellites and near-Earth objects BEIJING, Dec 10 ...

The new Instagram feature reveals what the algorithm thinks you like and lets you adjust it, reshaping how content gets recommended on Reels. Instagram launched Your Algorithm in the U.S. today, a ...

Abstract: Application of ridge detection algorithms to various transforms and problems in time-frequency (TF) analysis has become increasingly widespread with notable application in the instantaneous ...

Weather permitting, SpaceX Falcon 9 may be visible in the sky beyond Cape Canaveral, Florida, after liftoff. Early morning and nighttime launches can offer unique photo opportunities as the rocket ...