A Fading Channel Simulator Implementation Based on GPU Computing Techniques

Algorithm 2

Pseudorandom noise generation code.

_global_ void setup_kernel(curandState  state)

{ int id = threadIdx.x + blockIdx.x  6;

   curand_init(1234blockIdx.x, id, 0,  &state[id]);

_global_ void generate_normal_kernel(curandState  state, int n, float  result)

{ int id = threadIdx.x + blockIdx.x  6;

   float2 x;

   curandState localState = state[id];

   for(int i=0; i<n; i++)

   { /  Generate pseudorandom normals  /

      x=curand_normal2(&localState);

      result[id]= x.x;

   }

   /  Copy state back to global memory  /

   state[id] = localState;