WP5 3:OO SELFISH OPTIMIZATION IN COMWTER NE?woRKS

to which a global performance objective is assigned. This leads to a centralized optimization problem. The major shortcoming of this approach is that when one arrives at an optimal solution, having overcome the complexity of deriving one, the network problem is not yet solved since the centralized objective usually leads to a centralized behavior plicy. This centralized optimal behavior needs to be decentralized to serve as an adequate solution. 'he process of decentralization is usually mre difficult than solving the original optimization problem. Therefore decentralization is )usually an ad-hoc approximation process with little formal methodological suppor t .