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Inter cluster
routing [ICR]: It
is a destination initiated reactive routing algorithm. The destination is
called as local base station [LBS] it will start the route discovery by
creating interest signal and following them. ICR works in two phases, Route
discovery and data acquisition.
In Route
Discovery Phase, the
LBS initiates route discovery by sending an interest signal within the range
Ri,
1. All the nodes which are in the
range Ri will receive the interest signal.
2. Upon receiving the interest signal it will be
stored and flooding continues.
3. If an intermediate node
receive already processed interest signal it will be discarded
4. Before flooding the interest
signal the cost value will be updated. The format of the interest signal and
the formula for the cost is as given below.
Interest signal
|
Type
|
Period Source
|
Address
|
cost
|
The type field indicates message
format. The period indicates how often interest signal has to be sent. The
source address field is used for sorting address of the source node. The cost
field indicates number of hops required to reach the source. In formula for the
cost α and β are normalization factor based on environment.
Cost=αh+βΣ Bm/Bri
Where, h is hop count
Bm = It is the maximum battery
available in the node
Bri = it is the remaining battery in the node.
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