A Fading Channel Simulator Implementation Based on GPU Computing Techniques

Table 3

Time consumption comparative (in milliseconds): CPU-based implementation (Matlab) versus GPU-based implementation (CUDA).

	Matlab^1	CUDA^2 Libs	x-fold
(samples)			(gain)
5,120	31.5466	0.614496	51
10,240	38.5282	1.350240	28
20,480	54.7829	2.331968	23
81,920	179.8391	5.785952	31
327,680	633.4515	17.09622	37
655,360	1204.584	25.36316	47
1,000,000	1769.243	37.81030	47
1,310,720	3024.966	47.43065	64

CPU: Intel Core i5 3.4 GHz 16 GB.
²GPU: GeForce GTX 780M 4 GB.