Did you ever own a Walkman or a record player? Alice and Neil discuss old tech and why the US Pentagon still uses floppy disks ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Lea Uradu, J.D., is a Maryland state registered tax preparer, state-certified notary public, ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. "Without recourse" is a term used in financial agreements to indicate that one party cannot ...

If you go without water for too long, you can experience dehydration, which can cause lightheadedness, fatigue, low blood pressure, heart palpitations, and death. Most people can only survive about ...

Abstract: In this letter, we propose a symplectic optimization approach for robust precoder design in the user-centric network (UCN) massive MIMO (mMIMO) system. The system implementation of the UCN ...

Abstract: This work provides a precise performance analysis of a joint antenna selection and precoding technique for massive multiple-input-single-output (MISO) multi-user systems with limited dynamic ...