Abstract
Named data networking (NDN) is an emerging technology. It was designed to eliminate the dependency of IP addresses in the hourglass model. Mobility is a key concern of the modern Internet architecture, even though the NDN architecture has solved the consumer mobility. That is, the consumer can rerequest the desired data contents, while the producer mobility remains as an issue in the NDN architecture. This paper focuses on the issue of producer mobility and proposes the cluster-based device mobility management scheme, which uses the cluster heads to solve the producer mobility issue in NDN. In the proposed scheme, a cluster head has all information of its attached devices. A cluster head updates the routes, when a device moves to the new access router by sending all the attachment information. The proposed scheme is evaluated and compared with the existing scheme by using the ndnSIM simulation. From the results, we see that the proposed scheme can decrease the numbers of interest packets in the network, compared with the existing scheme.
Highlights
Named data networking (NDN) is a common networking model for all applications and network environment, and it is still under the developing phase
In the proposed cluster-based device mobility management (CB-DMM) model, devices send their information to a cluster head after handover
We have compared our results with the existing scalable mobility management (SMM) model
Summary
NDN is a common networking model for all applications and network environment, and it is still under the developing phase. A consumer uses the interest packet to request the desired contents, while a producer or NDN router uses the data packet to send the desired content to the consumer by using the reverse path. PIT forwards the desired content to the consumer upon reception. If PIT did not send the desired interest packet to FIB, it will forward it to FIB, and FIB will look for the desired content in the other NDN router. Problems may occur when a consumer requests the desired content and the producer moves to the new access router by handover. One of the problems may occur when the interest packets reach the previous access router, and the interest packets cannot be delivered to the producer.
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