Figure 8
From: Energy-efficient border intrusion detection using wireless sensors network

Q k =−1. In this situation, there are many area not not covered by sensors, So the Z n i and Z w i are shown in the figure.
From: Energy-efficient border intrusion detection using wireless sensors network
Q k =−1. In this situation, there are many area not not covered by sensors, So the Z n i and Z w i are shown in the figure.