932673.fig.004a
(a)
932673.fig.004b
(b)
932673.fig.004c
(c)
932673.fig.004d
(d)
Figure 4: Numerical results of our PCM scheme. (a) The effect of mutual interference ratio on proximity. (b) The effect of on proximity. (c) The effect of variance of AWGN on proximity. (d) The effect of the coefficient of transmitting cost on proximity.