Fault Tolerant Mobile Sensor Node Traversal Schemes Based on Hexagonal Coverage

Algorithm 1

Multiple mobile traversal algorithm.

(1)  MSN_active←3

(2)  while  MSN_active>0  do

(3)   if  MSN_active=3  then

(4)   if  Coordination != Successful or MSN Failed  then

(5)     MSN_active←MSN_active−1

(6)     Return(MSN_active)

(7)    else

(8)     Scan ROI in Triangle based traversal pattern

(9)     Call : Traversal pattern

(10)    end if

(11)   else if  MSN_active=2  then

(12)    if  Coordination != Successful or MSN Failed  then

(13)     MSN_active←MSN_active−1

(14)     Return(MSN_active)

(15)    else

(16)     Scan ROI in Line based traversal pattern

(17)     Call : Traversal pattern

(18)    end if

(19)   else

(20)   if  Coordination != Successful or MSN Failed  then

(21)    MSN_active←MSN_active−1

(22)    Return(MSN_active)

(23)   else

(24)    Scan ROI in Vertex based traversal pattern

(25)    Call : Traversal pattern

(26)   end if

(27)  end if

(28) end while