The Scientific World Journal

Research Article

Imaging Tasks Scheduling for High-Altitude Airship in Emergency Condition Based on Energy-Aware Strategy

Algorithm 2

Pseudocode of VTD algorithm.
    ; ; ;/*Initialization*/
   for each task in sequence do
  ;/*Search the value task in NQueue*/
 Calculate the distance between and ;
 if     then/* is a value task*/
  Calculate and by (15);
   ; ;
  Add to the value task set VQueue;
 else
  Reject ;/* is a invalid task, which can not been executed in its deadline*/
  end if
 end for
 for each task in sequence do
 Delete from , and set ; /*Assign value to the decision vector */
 if     then
  Select the first task in ; /* is the next value task behind */
  Let ;
 end if
 end for