Lifting-Based Fractional Wavelet Filter: Energy-Efficient DWT Architecture for Low-Cost Wearable Sensors

Table 4

Comparison of required adders and multipliers, as well as critical path delay and required RAM of proposed LFr and LFr vs. state-of-the-art architectures for one wavelet decomposition level with 5/3 filter-bank. ( = number of parallel proc. units;  = delay of shifter).

Architecture	Add.	Mul.	CPD	Mem.
PMA [85]	56	28
RMA [85]	12	6
Savic and Rajovic [86]	22	17
Aziz [87]	20	10	2
Fr [62]	8	10
Fr [62]	10	0
LFr	6	5
LFr	11	0