Performance and Complexity Evaluation of Iterative Receiver for Coded MIMO-OFDM Systems

Table 4

values achieving a BER level of 1 × 10⁻⁵ for different detectors and channel decoders (turbo, LDPC) in 4 × 4 spatial multiplexing system with 16-QAM , and 64-QAM .

	Turbo code		LDPC code
	16-QAM	64-QAM	16-QAM	64-QAM
STS-SD	2.5 dB	10.2 dB	2.7 dB	9.6 dB
LC--Best	2.6 dB ()	10.2 dB ()	2.8 dB ()	9.6 dB ()
I-VBLAST	2.8 dB ()	12.8 dB ()	2.9 dB ()	12 dB ()
MMSE-IC	2.8 dB ()	12.8 dB ()	3.0 dB ()	12 dB ()

The number in the parenthesis corresponds to the performance loss in dB compared to STS-SD.