REF: A Novel Forwarding Strategy in Wireless NDN
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REF: A Novel Forwarding Strategy in Wireless NDN Negar Najafi Dehaghani1 · Rasool Sadeghi2 · Sayed Mahdi Faghih Imani1
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Named Data Networking (NDN), an emerging communication model in the content centric networks, has recently presented a solid framework for the future Internet. The NDN exploits content name instead of host name (IP address) and content caching. These features make NDN particularly efficient in networks with intermittent connectivity and dynamic topologies such as mobile ad hoc networks (MANETs). Due to the structure of NDN nodes, design of forwarding strategies has a vital impact on the network performance. In this paper, we propose a new forwarding strategy: redundancy elimination forwarding (REF). In REF, the NDN node structure and the operation of the data structures are modified. These modifications improve network performance in terms of throughput, overhead and resource requirements. REF strategy is simulated in different scenarios based on ndnSIM and the results demonstrate that it provides robust performance for various environments. Keywords NDN · Forwarding strategy · Redundancy elimination · Network performance
1 Introduction The current Internet has some fundamental challenges for communications between computing devices. The host-centric communication model of IP protocol [1] with some special features such as mapping between the interface addresses, devices, channels, and subnets for data retrieval increases the complexity of the Internet. For this purpose, a new architecture entitled Named Data Networking (NDN) [2, 3] has been proposed which employs a content-centric instead of host-centric model of IP protocol. The NDN architecture enables applications to be named and resolves the need for a new layer and the special firmware to rename the address to establish the connection. In this architecture, each data * Rasool Sadeghi [email protected] Negar Najafi Dehaghani [email protected] Sayed Mahdi Faghih Imani [email protected] 1
Department of Computer Engineering, Dolatabad Branch, Islamic Azad University, Isfahan, Iran
2
Department of Electrical Engineering, Dolatabad Branch, Islamic Azad University, Isfahan, Iran
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packet is secured during production and it is independent of the communication channel. This allows data replication anywhere in the network, as well as the security features of data in its lifetime. This infrastructure enables the network and applications of the Internet to work with simpler and more consistent concepts as well as more security. Moreover, the NDN architecture supports scalability, flexibility, and data caching for efficient data dissemination as expected for the future Internet model [4, 5]. However, NDN architecture has several research challenges in a variety of areas such as naming, routing, forwarding strategies, mobility, security, privacy, assurance and creating applications for environments
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