President Obama has made scientific innovation the cornerstone of his plans for "winning the future," requesting in his recent budget proposal large financing increases for scientific research and education and, in particular, sustained attention to developing alternative energy sources and technologies.
Intuitively, therefore, the minimum resources, e.g., a bandwidth and a hop count, used at the given situation are the best way to consider a future request when the information of the future request is not known.
From a traffic engineering perspective, the residual bandwidth is considered as a criterion for measuring the acceptance rate of the future request on the multicast routing path.
Firstly, on the basis of history prediction algorithm scheduler predicts the future request load, then on the basis of result ON/OFF algorithm turn off unused servers.
We note that the hop count of the first path is 3 while that of the second is 4, which implies that the first path is better than the second one for the future request.
In practice, since the possibility of having to route future demands cannot be excluded, the online routing algorithm must be capable of routing requests in an optimal manner which minimize the usage of network capacity for provisioning the more capacity on the future request of demand when the requests are arrived sequentially.
In any case, busy investigators may oppose this not only because of the effort and resources required but also because they would be relinquishing exclusive access to their own raw data (and therefore the risk of being "scooped") for the possibility of future requests for reanalysis.
By making decisions in an anticipatory manner, while implicitly taking into account the current situation as well as potential future requests, the performance of the emergency service provider can be improved.
More recently, minimum interference routing algorithm (MIRA) that aims to select path as to ensure that the chosen path blocks future requests to the least possible extent is proposed [12].
