PBMA: A Proxy Based Mobility Support Approach in Named Data Networking

To provide seamless Source mobility support in the NDN (Named Data Networking) architecture, we propose a Proxy Based Mobility support Approach, dubbed PBMA. In this approach, we deploy a Proxy to maintain the mobility status of the Source, and suppose the Proxy is continuously active in transmitting or caching Interest packets in the person of the Source. For that, we assign a layered ID to each NAR (NDN Access Router), modify the original NDN packet format, as well as the original FIB (Forwarding Information Base) entry of the Proxy. Our proposed approach can not only avoid needless Interest packet losses on the way to the old location of the Source, but also decrease handoff latency and enhance handoff experience during the move processing of the Source. The performance analysis result indicates that PBMA can provide a better handoff performance, compared with current DNS-based mobility support approach.