Optimal Buffer Management Based Effective Routing in Delay Tolerant Network

Computer Engineering

Delay Tolerant Networks are the kind of networks in which an end-to-end path between any source and destination pair may never exist. In DTN, nodes use store-carry-forward mechanism for data transmission. Currently the key method to solve information exchange in DTN is to select forwarding nodes effectively, Made the information deliver to the destination successfully within a short time and reduce resource overhead. At the same time, the load of selected nodes will be increased and the requirement to the buffer also increased, then the management of the buffer becomes particularly important. In our hybrid approach we have applied partially observed Markov Decision Process (POMDP) which predicts some properties of the optimal buffer management policy on the selective 2-phase spray and wait routing protocol which divides transmission phase into 2 parts and fulfils a data transmission in the light of condition of network.

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