EURASIP Journal on Wireless Communications and Networking

Table 1 The computational complexity of each filter coefficient update equation of NLMS

From: Design and complexity analysis of an improved adaptive filtering algorithm for non-sparse impulse response

Algorithms	Addition	Multiplication	Division	Comparison	Logarithm	Prescribing
NLMS	L	2 L + 1	1	0	0	0
PNLMS	2 L - 1	4 L + 1	2	2 L	0	0
IPNLMS	3 L	4 L + 1	2	0	0	0
MPNLMS	2 L - 1	4 L + 2	2	2 L	L	0
IMPNLMS	5 L + 2	5 L + 5	3	0	L	1
IMPNLMS+	5 L + 3	5 L + 8	4	0	L	2

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