Abstract
<p>Named Data Networking is a consumer-driven network that supports content consumer mobility due to the nature of in-network catching. The catching suppressed unnecessary Interest packets losses by providing an immediate copy of the data and consumer-driven nature influencedthe mobile consumer to resend unsatisfied Interest packet immediately after the handoff. Once the producer moves to a new location, the name prefix changed automatically after handoff to the new router or point of attachment. The entire network lacks the knowledge of producer movement unless if the producer announces its new prefix to update the FIBs of intermediate routers. Lack of producer’s movement knowledge causes an increase of handoff latency, signaling overhead cost, Interests packets losses, poor utilization of bandwidth and packets delivery. Therefore, there is needs to provide substantial producer mobility support to minimize the handoff latency, handoff signaling overhead cost, reduce the unnecessary Interest packets loss to improve data packets delivery once a content producer relocated. In this paper, broadcasting strategy is introduced to facilitate the handoff procedures and update the intermediate routers about the producer movement. Hence, analytical investigation result of this paper addresses the deficiency of Kite scheme by minimizing handoff signaling cost and provides data path optimization after the handoff.<strong></strong></p>
Highlights
Named Data Networking architecture is completely clean-slate architecture that evolved from the IP Internet architecture retain and expand end-to-end principle with routing and forwarding plane separation [1], [2]
In this paper, network analysis model is used to formulate the mathematical models for the validation of proposed solution of producer mobility support concept to evaluate the handoff latency, signaling cost and routing path optimization
The summary of the numerical result for handoff signaling cost is shown in Table 3 and in Fig. 7we compared the performance of our proposed scheme with optimal provider mobility support in large-scale NDN (OPML) and Kite
Summary
Named Data Networking architecture is completely clean-slate architecture that evolved from the IP Internet architecture retain and expand end-to-end principle with routing and forwarding plane separation [1], [2]. Two packets Interest and Data (Fig. 1) were managed by three data structures Content Store (CS), Forwarding Information Base (FIB) and Pending Interest Table (PIT) to enable the named based routing[5], [6]. Zhu et al [4]ascertain the content consumer mobility support in NDN and content producer faces similar handoff challenges like an IP architecture. Some researches were carried out to improved consumer mobility using mobility link service [18], there are many problems such as, high handoff latency, high handoff signaling overhead cost, unnecessary Interest packets and poor data packets delivery that needs to be addressed. There is needs to provide substantial producer mobility support to minimize the handoff latency, handoff signaling overhead cost, reduce the unnecessary Interest packets loss to improve data packets delivery once a content producer relocates to another PoA.
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