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_______ is a transmission method used in MIMO wireless communications to transmit encoded data signals independently.

(a) STTD

(b) SM

(c) Collaborative Uplink MIMO

(d) MU-MIMO

I had been asked this question in semester exam.

This intriguing question originated from Multiple Input Multiple Output (MIMO) in section 4G of Wireless/Mobile

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Correct option is (b) SM

Explanation: Spatial multiplexing is a transmission method used in MIMO wireless communications to transmit encoded data signals independently and separately (so-called streams) from each of the multiple transmit antennas.

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