EURASIP Journal on Wireless Communications and Networking

Table 2 Average number of column exchanges ( $\bar{c}$ ) within each algorithm

From: Low complexity lattice reduction scheme for STBC two-user uplink MIMO systems

-	LLL-LR		SLR	I-SLR
	w/o IS	w/IS
$\bar{c}$	7.03	3.07	0.70	0.73
%saved	w/o IS	56.3%	90.0%	89.6%
	w/IS	-	77.2%	76.2%

*w/o IS: without initial sorting, *w/IS: with initial sorting

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