Design and Routing Algorithm of PPCAN

By analyzing existed improved DHT networks, we propose a novel improved CAN: PPCAN, which adopt 2-dimensional Polar coordinate and power series expand subspace hops to obtain better routing efficiency and lower maintenance cost. Then, we introduce the Landmarks to optimize the relay sequenced peers through the hops. Our design can be implemented entirely at the application level. Some improved routing algorithms based CAN also can be implemented in PPCAN.