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  2. MIMO - Wikipedia

    en.wikipedia.org/wiki/MIMO

    Multi-antenna MIMO (or single-user MIMO) technology has been developed and implemented in some standards, e.g., 802.11n products. SISO /SIMO/MISO are special cases of MIMO. Multiple-input single-output (MISO) is a special case when the receiver has a single antenna.

  3. 3G MIMO - Wikipedia

    en.wikipedia.org/wiki/3G_MIMO

    MIMO is the only advanced antenna technology that simultaneously offers high bandwidth, improved range, and high mobility at a lower cost. Visant Strategies — [ 10 ] Intelligent antennas are antenna systems that use some sort of computational or electronic resource to enhance system performance.

  4. Zero-forcing precoding - Wikipedia

    en.wikipedia.org/wiki/Zero-forcing_precoding

    Zero-forcing (or null-steering) precoding is a method of spatial signal processing by which a multiple antenna transmitter can null the multiuser interference in a multi-user MIMO wireless communication system. [1]

  5. Precoding - Wikipedia

    en.wikipedia.org/wiki/Precoding

    Precoding is a generalization of beamforming to support multi-stream (or multi-layer) transmission in multi-antenna wireless communications. In conventional single-stream beamforming, the same signal is emitted from each of the transmit antennas with appropriate weighting (phase and gain) such that the signal power is maximized at the receiver output.

  6. Multi-user MIMO - Wikipedia

    en.wikipedia.org/wiki/Multi-user_MIMO

    Multi-user MIMO (MU-MIMO) is a set of multiple-input and multiple-output (MIMO) technologies for multipath wireless communication, in which multiple users or terminals, each radioing over one or more antennas, communicate with one another. In contrast, single-user MIMO (SU-MIMO) involves a single multi-antenna-equipped user or terminal ...

  7. 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.