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sensorswirelessomnet++

What are the general properties of a common wireless sensor node while designing a MAC protocol?

What are the properties of a wireless sensor node ?
From Omnet++ manual i came to know that

simple wirelessnode
{
gates:
input radioIn;
parameters:
...........
}

Though the node have only input gate , how it sending data to other node?

if the node is wireless how the sensor node connected ?

How to define a region around a wireless sensor node for reach another node in range?

Thanks

Solution

  • For sending, you can think with a DODAG : take a tree, put the root as the gate. The gate gathers the data of its children, each of those children gathring themselves the data of their children ... the leaves are the nodes that need the more hops to be reached from the root.

    Here you would need, among others : the power of the transmitting, the power of the receiving chip (so that if the sending node is too far away then the receiving node won't catch its frame for example, as pointed by user4786271), a protocol to route them (so that if a node has 2 other nodes in range of rank n-1, to know which one it will use).

    Try to dig into some open source WSN simulators implementing protocols, you could get a lot of info. For example : https://bitbucket.org/6tisch/simulator/src