Abstract
In recent years we have been assisting a radical change in the way devices are connected to the Internet. In this new scope, the traditional TCP/IP host-centric network fails in large-scale mobile wireless distributed environments, such as IoT scenarios, due to node mobility, dynamic topologies and intermittent connectivity, and the Information-Centric Networking (ICN) paradigm has been considered the most promising candidate to overcome the drawbacks of host-centric architectures. Despite bringing efficient solutions for content distribution, the basic ICN operating principle, where content must always be associated with an interest, has serious restrictions in IoT environments in relation to scale, performance, and naming, among others. To address such drawbacks, we are presenting ndnIoT-FC, an NDN-based architecture that respects the ICN rules but offers special treatment for IoT traffic. It combines efficient hybrid naming with strategies to minimize the number of interests and uses caching strategies that virtually eliminates copies of IoT data from intermediate nodes. The ndnIoT-FC makes available new NDN-based application-to-application protocol to implement a signature model operation and tools to manage its life cycle, following a publisher-subscriber scheme. To demonstrate the versatility of the proposed architecture, we show the results of the efficient gathering of environmental information in a simulation environment considering different and distinct use cases.
Highlights
The Internet of Things (IoT), a recent communication paradigm in which objects of everyday life are able to, among others, communicate with one another, has become an integral part of the Internet [1,2]
One of the main topics of discussion about Named Data Network-based (NDN) performance is the number of entries kept at the Pending Interest Table (PIT), which scales directly with network traffic leading to congestion situations
By introducing aggregation to our pub-sub solution, when services of the same Data Collection Units (DCUs) are concerned, we aimed to reduce the number of entries necessary to be kept at PIT tables
Summary
The Internet of Things (IoT), a recent communication paradigm in which objects of everyday life are able to, among others, communicate with one another, has become an integral part of the Internet [1,2]. The nature of IoT devices and the huge amount of data generated by them causes serious failures in conventional network protocols, such as the traditional host-centered TCP/IP network: the address space is exhausted, and additional mobility-related mechanisms have been required. The connection-oriented TCP requires resources (computing, memory and, energy) usually not available in small devices. ICN enables the deployment of in-network caching and content replication facilitating the efficient and timely delivery of information. The basic and efficient mechanics of ICN of only responding with content to the interests posted on the network, can be a major obstacle. The efficient caching mechanism would spread thousands of copies of interests/data whose validity is restrict
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