Expected Global Cost
Observe that incurs additional costs It is the whole society that suffers from lnternet shutdown Downtime costs associ-ated with telecommunication infrastructure failures vary signif-icantly within industries type of services issued countries and end users The core factor for this variation include size of the business and duration of service restorationb Thus it is dif -ficult to measure the cost of telecommuication infrastructure failures considering global loss However practical experience shows that the cost is acute as the survey conducyed by CA Technology (in North USA and Europe which involved 200 companies) found that more than 250 billion in revenue is lost each year due to telecommunication downtime This trans-làtes to 150000 annual loss for each business surveyed Recall also the Swiss study that estimated the global cost as GDP due to lnternet shutdown in Switzerland We revamp our formulation to address the issue of expected global cost by adding a new parameter SC which denotes subscribers cost by adding a new parameter SC which denotes subscribers cost to our objective function in Eqn which is defined as follows
Henceforth the new objection is as follows