Research of direction-based search algorithm in distributed P2P network

Based on the concept of the flooding algorithm and its improved algorithm the search algorithm in P2P networks is proposed based on the direction. This algorithm dynamically generates a search tree taken the source point to be its root which makes the search processing along the search tree. By this algorithm the production of redundant search packets can be effectively avoided in the search process, the network bandwidth can be saved and the efficiency and network performance can be improved. The analysis on experimental results of two dimensional digital data and image data fully reflects the effectiveness and feasibility of this algorithm in the search process, document.