Abstract
Today, Internet of Things (IoT) is a technology paradigm which convinces many researchers for the purpose of achieving high performance of packets delivery in IoT applications such as smart cities. Interconnecting various physical devices such as sensors or actuators with the Internet may causes different constraints on the network resources such as packets delivery ratio, energy efficiency, end-to-end delays etc. However, traditional scheduling methodologies in large-scale environments such as big data smart cities cannot meet the requirements for high performance network metrics. In big data smart cities applications which need fast packets transmission ratio such as sending priority packets to hospitals for an emergency case, an efficient scheduling mechanism is mandatory which is the main concern of this paper. In this paper, we overcome the shortcoming issues of the traditional scheduling algorithms that are utilized in big data smart cities emergency applications. Transmission information about the priority packets between the source nodes (i.e., people with emergency cases) and the destination nodes (i.e., hospitals) is performed before sending the packets in order to reserve transmission channels and prepare the sequence of transmission of theses priority packets between the two parties. In our proposed mechanism, Software Defined Networking (SDN) with centralized communication controller will be responsible for determining the scheduling and processing sequences for priority packets in big data smart cities environments. In this paper, we compare between our proposed Priority Packets Deadline First scheduling scheme (PPDF) with existing and traditional scheduling algorithms that can be used in urgent smart cities applications in order to illustrate the outstanding network performance parameters of our scheme such as the average waiting time, packets loss rates, priority packets end-to-end delay, and efficient energy consumption.
Highlights
The technology scene has been dominated for years by the term “Smart Cities”, which seek to provide a digital environment that stimulates learning and creativity that promotes a sense of happiness and health
Based on NS2 simulator, we conduct a scenario where priority packets are needed to be sent to the final destination in order to request an imbalance for cars accident located in specific location in a geographical area of Internet of Things (IoT)
Source nodes with high priority data packets, that represent emergency situations indications, will be delivered through high priority communication channels, while packets with low priority information will be delivered through low priority data channels
Summary
The technology scene has been dominated for years by the term “Smart Cities”, which seek to provide a digital environment that stimulates learning and creativity that promotes a sense of happiness and health. The term smart cities and big data have long been of particular interest in the world of technology, and the use of these technologies is no longer a matter of technical luxury in many fields, but rather a necessity that is required by the need to control devices and equipment remotely based on the data that been recorded immediately on the one hand, and the need to process huge data that helps to make decisions automatically and instantly on the other hand. The information collected has a great impact in various areas of the smart city such as security to ensure the safety of people; Transportation to reduce traffic jams; Urban planning identifies areas in need of improvement and modernization; Sustainability to provide sustainable development needs to be renewed [3]
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