Time of Arrival (ToA) is one example of a ranging technique. Answer the following questions (assume a propagation time o

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Time of Arrival (ToA) is one example of a ranging technique.
Answer the following
questions (assume a propagation time of 300 m/s):
a) In a synchronized network with unknown synchronization error,
an anchor node
periodically broadcasts an acoustic signal to sensor nodes in its
range. At time
1000 ms on the anchor node’s clock, the anchor node issues a
beacon, which is
received by node A at time 2000 ms (on node A’s clock). What is the
distance that
A can now compute?
b) Instead of computing the distance itself, node A also
responds with an acoustic
signal issued at time 2500 ms,which is received by the anchor node
at time 3300 ms.
What is the distance computed by the anchor node? What can you say
about the
synchronization of anchor node and node A?