Scheme	PCRG	RMV	VCRG
FICA [13]	$2 T_{m} + 9 T_{e} + 2 T_{b} + 6 T_{u}$	$2 T_{m} + 9 T_{e} + 5 T_{b} + 3 T_{u}$	$2 T_{m} + 9 T_{e} + 2 T_{b} + 6 T_{u}$
SRSCB [31]	$4 T_{m} + 10 T_{e} + T_{b} + 2 T_{u}$	$3 T_{e} + 5 T_{b}$	$2 T_{m} + T_{e} + 2 T_{b}$
TPCM	$T_{m} + 3 T_{e} + T_{u}$	$2 T_{m} + 3 T_{e} + 2 T_{b} + 3 T_{u}$	$T_{m} + 3 T_{e} + T_{u}$