Biomedical Engineering Reference
In-Depth Information
Due to the hierarchical relationship between the infostations and the fixed time
period of ferry, there is no single point of failure present in the proposed protocol.
Any type of failure in the network, either the ferry failure or the infostation failure,
can be easily detected and corrected. In Message-ferrying approach, multiple
ferries must be synchronized with each other so that they can meet and exchange
messages with each other after a fixed period of time. Due to the presence of the
infostations at the junctions, the synchronization between the ferries is not required
in the proposed protocol.
Conclusion and Future Work
In this chapter, we presented a new routing protocol for Oppnets which is a hybrid
of message ferrying and infostation based routing protocols. This protocol proves
to be energy efficient as substantial energy is saved because the sender node
communicates over a short range. When a node has to transfer a message it can
either keep on moving till it encounters the ferry or wait at its place for ferry to
arrive. The architecture of the protocol is easily scalable as deployment of new
infostations or ferries requires no network reconfiguration. An infostation can be
made to serve more than four Level 1 zones (for simplicity we have taken only four
zones under each infostation). Without configuring existing architecture a new
level can be added. It also tries to reduce the average delays and to improve
message delivery rate. Future work includes a refined analytical and experimental
study for reinforcing our results. Comparison of the proposed protocol with
already existing protocols will be done to analyze how it performs in comparison
to them in terms of average message delay, number of messages delivered, etc.
References
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