Question 1 ['15 marks} a} Brieflyr describe. in layman terms, how the Probabilistic Forwarding [F'FRJ protocol works and how it compares to the Local Target Protocol {LTP]. b} Consider a wireless sensor network consisting of N = BSUwireless sensor motes. Assume that the network uses the LEACH rooting protocol configured to operate in eras of 3 rounds each, with 12%\": of the motes acting as cluster-heads in each round. Describe and show how the cluster-head election algorithm would work for one era