Zeyu Zheng et. al.[18,19] considering both internet traffic and p2p traffic and give an algorithm for ONU placement in a FiWi network. Firstly find the optimal K ONUs placement so that overall wireless hop counts will be minimized in network. For solving this tabu search algorithm is applied. But this work will remain untouched in how to minimize the number of ONUs in a network and also the load balancing between the different ONUs.