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Lecture 5

Lecture 5

Lecture 5

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MIMO Channel Equalisation MATLAB Programming Conclusions<br />

Results<br />

A 4×4 MIMO system with QPSK transmission is considered. It is clearly noted that<br />

the MMSE filter outperforms its ZF counterpart and their BER performance converges<br />

at higher SNR where the regularisation factor σ 2 v/σ 2 s ≪ 1<br />

Nt = 4, Nr = 4, NumChan = 300<br />

10 0 SNR [dB]<br />

ZF<br />

MMSE<br />

10 −1<br />

10 −2<br />

BER<br />

10 −3<br />

10 −4<br />

0 5 10 15 20 25 30<br />

Dr. Waleed Al-Hanafy Digital Signal Processing (ECE407) — <strong>Lecture</strong> no. 5<br />

Linear Equalisation of MIMO Channels

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