Research Article

Energy-Efficient User Association with Congestion Avoidance and Migration Constraint in Green WLANs

Algorithm 2

DN reassociation.
Input:  , , , , , , ,
,
Output:  
Initialize // Set of APs that are
turned on
Initialize // AP utilization
// Set of AP-DN
associations
Sort in descending order by traffic demand
while    do
obtain DN from in sequence
if    then
if    then
// increment of
energy consumption
else
if    then
if    then
Update
else
return  null // Reassociation failed
return