Olympic Games. Sydney McLaughlin-Levrone sets another world record, claims gold in 400m hurdles in Paris Olympic Games. Noah Lyles slammed for running 200m final with COVID: What are the Olympics' ...

Abstract: In this paper, we investigate the channel estimation problem for multiple-input multiple-output (MIMO) relay communication systems with time-varying channels. The time-varying characteristic ...

Abstract: Through the allocation of multi-antenna time blocks to spacecrafts, the data relay satellite network (DRSN) is capable of providing data relay within their visible intervals (i.e., time ...

ANTERSELVA, Italy (AP) — France came from last place to win the Olympic men’s biathlon relay for the first time on Tuesday by less than 10 seconds from stunned world and defending champion Norway.