中文摘要 |
Named Data Networking (NDN) is a content-centric network. It is not similar to traditional IP-based network. It uses the content name, not IP address, to route and transmit information in NDN. Therefore, NDN focuses on WHAT (data content) instead of WHERE (data location). A content provider publishes content with a unique named prefix, called as named data, into a content-space (CS) in a NDN node. If a user wants to access the named content, the name prefix is used to query and find the corresponding content in NDN. This paper adopts the CRC-32 (Cyclic Redundancy Check) scheme to encode the named prefix in a fixed length encoded form in order to efficiently enhance the query mechanism of named content based on the named prefix. Through a fixed-length query mechanism to lookup the named data, it can improve the lookup efficiency in NDN indeed. |