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EURASIP Journal on Wireless Communications and Networking

Table 1 Computational complexity of the LS-based and MMSE channel estimators .

From: Appropriate Algorithms for Estimating Frequency-Selective Rician Fading MIMO Channels and Channel Rice Factor: Substantial Benefits of Rician Model and Estimator Tradeoffs

Channel estimation algorithm

Number of real multiplications

Number of real additions

Matrix inverse operation

LS, SLS

No

SSLS

No

MMSE ( = 0)

Yes

General MMSE

Yes

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