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EURASIP Journal on Wireless Communications and Networking
Fig. 9 | EURASIP Journal on Wireless Communications and Networking

Fig. 9

From: A simplified hard output sphere decoder for large MIMO systems with the use of efficient search center and reduced domain neighborhood study

Fig. 9

Uncoded BER with imperfect channel estimation, of the ODN MMSE-SIC-centered FNSA (FNSA curve), of the proposed RDN LRA-MMSE-OSIC-centered FNSA (proposed), and of the ML, with perfect channel estimation Δ = 0 and real channel estimation, Δ = 0.001 (left) and Δ = 0.005 (right), for K = 4, (4 × 4 complex Rayleigh channel, QPSK modulation on each layer

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