Abstract
Internet of Things (IoT) has been receiving a lot of interest around the world in academia, industry and telecommunication organizations. In IoT, many constrained devices can communicate with each other which generate a huge number of transferred packets. These packets have different priorities based on the applications which are supported by IoT technology. Emergency applications such as calling an ambulance in a car accident scenario need fast and reliable packets delivery in order to receive an immediate response from a service provider. When a client sends his request with specific requirements, fast and reliable return contents (packets) should be fulfilled, otherwise, the network resources may be wasted and undesirable circumstances may be counted. Content-Centric Networking (CCN) has become a promising network paradigm that satisfies the requirements of fast packets delivery for emergency applications of IoT. In this paper, we propose fast packets delivery techniques based on CCN for IoT environment, these techniques are suitable for urgent packets in emergency applications that need fast delivery. The simulation results show how the proposed techniques can achieve high throughput, a large number of request messages, fast response time and a low number of lost packets in comparison with the normal CCN.
Highlights
The Internet of Things (IoT) consists of a large number of connected low power and cost devices which include sensors, cell phones, RF identification (RFID) tag, actuators and etc
We proposed two scenarios for retrieving data: Scenario one, when the selected Master Consumer (MC) consumer has an interest packet needs to be sent to a provider, the intermediate Centric Networking (CCN) router checks the type of the packet which is specified in the packet type field, if the interest packet asked for a content which is not urgent, the router follows one-to-one mode which means that the content provider will send the related content in response to one interest packet which is sent by a consumer
Scenario two, when the selected MC consumer has an urgent interest packet for emergency application, the CCN router found that the first bit in the packet type field is 1, and the name of the request is recognized as a high priority request after all producers accounted their contents pritto the CCN router
Summary
The Internet of Things (IoT) consists of a large number of connected low power and cost devices which include sensors, cell phones, RF identification (RFID) tag, actuators and etc. To deal with the above challenges, the main contributions of this paper are twofold: We distinguish the prioritize packets from the normal packets for the purpose of emergency applications in IoT by making a simple change in a packet structure of CCN. This simple change along with calling multiple packets at the same time instead of calling only one packet for one request will save the network resources and reduce the load on the network infrastructure.
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