International Journal of Emerging Technology and Advanced Engineering (IJETAE)
P2P network is a popular technology used for sharing and searching files on the computers connected to the network. Current search mechanisms of Peer-To-Peer (P2P) systems can well handle a single keyword search problem. Other than single keyword search, multi keyword search is very popular and useful in many file sharing applications. For multi keyword search, the solution which merges the result of each keyword search incurs a lot of data traffic across wide area network .Existing methods use Bloom Filter (BF), an efficient data structure which is effective in reducing the traffic cost. Though applying BF is not complex, getting optimal results in terms of communication cost is not trivial.