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2. Bell Laboratories Layered Space-Time - Wikipedia

   en.wikipedia.org/wiki/Bell_Laboratories_Layered...

   Bell Laboratories Layer Space-Time (BLAST) is a transceiver architecture for offering spatial multiplexing over multiple-antenna wireless communication systems. Such systems have multiple antennas at both the transmitter and the receiver in an effort to exploit the many different paths between the two in a highly-scattering wireless environment.

3. Smart antenna - Wikipedia

   en.wikipedia.org/wiki/Smart_antenna

   Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal processing algorithms used to identify spatial signal signatures such as the direction of arrival (DOA) of the signal, and use them to calculate beamforming vectors which are used to track and locate the antenna beam on the mobile/target.

4. Non-orthogonal frequency-division multiplexing - Wikipedia

   en.wikipedia.org/wiki/Non-orthogonal_frequency...

   In 2001, V. Slyusar proposed non-orthogonal frequency digital modulation (N-OFDM) as an alternative of OFDM for communications systems. [5] The next publication about this method has priority in July 2002 [2] before the conference paper regarding SEFDM of I. Darwazeh and M.R.D. Rodrigues (September, 2003). [6]

5. MIMO-OFDM - Wikipedia

   en.wikipedia.org/wiki/MIMO-OFDM

   Multiple-input, multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) is the dominant air interface for 4G and 5G broadband wireless communications. It combines multiple-input, multiple-output technology, which multiplies capacity by transmitting different signals over multiple antennas, and orthogonal frequency-division multiplexing (OFDM), which divides a radio channel into ...

6. The best smart speakers for seniors in 2023 - AOL

   www.aol.com/lifestyle/best-smart-home-speakers...

   Assistant: Alexa | Connectivity: Bluetooth, Wi-Fi | Spatial audio: Yes | Special features: 8-inch touchscreen Imagine a tablet with a beefy speaker grafted onto the back: That's the Echo Show 8 in ...

7. 3G MIMO - Wikipedia

   en.wikipedia.org/wiki/3G_MIMO

   A smart antenna is a digital wireless communications antenna system that takes advantage of diversity effect at the source (transmitter), the destination (receiver), or both. MIMO is an antenna technology for wireless communications in which multiple antennas are used at both the source (transmitter) and the destination (receiver).