LBMA: A novel Locator Based Mobility support Approach in Named Data Networking

To enhance seamless source mobility support in the mobile NDN (Named Data Networking) environment, we propose a novel Locator Based Mobility support Approach, dubbed LBMA. In this approach, we assign a unique topologically layered locator to each AR (Access Route) in NDN network, and extend the AR with additional functionalities, such as caching and forwarding Interest packets on behalf of the source. Meanwhile, we add an optional field to the original NDN packet, and modify the Outgoing Interface(s) field in the AR´s original FIB (Forwarding Information Base) entries, to record the mobility status and the current locator of the source. Specifically, the consumer in LBMA can continue the interrupted communication, without delivering Interest packets towards the old location of the source, nor waiting for all relevant devices completing the FIB entries updating. The performance analysis result indicates that LBMA has lower handoff cost and shorter handoff latency, compared with other existing source mobility support approaches.