A Novel SLM Scheme for PAPR Reduction in OFDM Systems

Table 4

Computational complexity of the SLM schemes in [11] and the novel SLM schemes when 𝑁=256 and 1024.

	SLM in [11], 𝐾=31	Novel SLM, 𝐾=5	CCRR	SLM in [11], 𝐾=66	Novel SLM, 𝐾=7	CCRR
IFFTs	1	5		1	7
	𝑁=256
Complex multiplications	1,024	2,048	−100%	1,024	2,560	−150%
Complex additions	25,856	15,360	40.6%	52,736	28,160	46.6%
	𝑁=1024
Complex multiplications	5,120	9,216	−80%	5,120	11,264	−120%
Complex additions	105,472	63,488	39.8%	212,992	114,688	46.2%