minor update

changing minor notational inconvenience.

Author: sourav2609

utils/helper.py

@@ -344,7 +344,7 @@ def nu(self, k, k_, j, j_, UEs, L, r, antSpacing, t):
         rel_spin = np.abs(r[j] - r[j_])
         g_k_kl1, _ = self.channelAndPrecoder(UEs[k_], UEs[k], antSpacing, L[0], t, "u2u")
         g_k_kl2, _ = self.channelAndPrecoder(UEs[k_], UEs[k], antSpacing, L[1], t, "u2u")
-        return rel_spin * (r[j_] * g_k_kl1 + (1 - r[j_]) * g_k_kl2)
+        return rel_spin * ((1 - r[j_])  * g_k_kl1 + r[j_] * g_k_kl2)
 
     def objective(self, r, chi_dl, chi_ul, xi_dl, xi_ul, z_dl, z_ul, time, sigma, satellites, UEs, L, antSpacing):
         coeffs = self.objective_coefficients(