The term 4×4 means a four-wheel-drive vehicle. Technically, the first digit is the number of wheels and the second is the number that are driven, so a four-wheel-drive pickup truck is a 4×4 ...

However, there remains a gap between the Gaussian secrecy capacity and the secrecy rate with conventional uniformly distributed discrete constellation input, e.g. amplitude shift keying (ASK) and ...

The mission will be Rocket Lab’s fourth in a series of five dedicated Electron launches for the French Internet-of-Things constellation ... The "IOT 4 You and Me" mission is scheduled to launch ...