Abstract
Driven by the vision of the Internet of Things (IoT), there has been a dramatic shift in mobile computing in recent years from centralized mobile cloud computing (MCC) to mobile edge computing (MEC). The main features of MECs are to promote mobile computing, network control, and storage to the edge of the network in order to achieve computationally intensive and latency-critical applications on resource-constrained mobile devices. Therefore, MEC is proposed to enable computing directly at the edge of the network, which can deliver new applications and services, especially for the IoT. In order to provide a highly flexible and reliable platform for the IoT, a MEC-based IoT platform (MIoT) is proposed in this study. Through the MIoT, the information asymmetrical symmetry between the consumer and producer can be reduced to a certain extent. Because of the IoT platform, fault tolerance is an important research topic. In order to deal with the impact of a faulty component, it is important to reach an agreement in the event of a failure before performing certain special tasks. For example, the initial time of all devices and the time stamp of all applications should be the same in a smart city before further processing. However, previous protocols for distributed computing were not sufficient for MIoT. Therefore, in this study, a new polynomial time and optimal algorithm is proposed to revisit the agreement problem. The algorithm makes all fault-free nodes decide on the same initial value with minimal rounds of message exchanges and tolerate the maximal number of allowable faulty components in the MIoT.
Highlights
The Internet of Things (IoT) paradigm is based on intelligent self-configuring nodes that are interconnected in a dynamic and global network infrastructure
MEC-based Agreement Algorithm (MECAA) is initiated by the user equipment (UE) to ask for a specific application service
The majority value is used as the initial value (vi) of eij MECAA is initiated by the UEs to ask for a specific application ser is initiated by theConsensus
Summary
The Internet of Things (IoT) paradigm is based on intelligent self-configuring nodes (things) that are interconnected in a dynamic and global network infrastructure. MEC is a distributed paradigm that provides cloud-like services to the edge of the network. It uses cloud and edge resources and its own infrastructure. No relevant research has tackled the agreement issue in the IoT platform based on cloud computing and MEC. This is the first time that an algorithm has been proposed to make all fault-free nodes reach agreement underlying MIoT. The proposed algorithm, MEC-based Agreement Algorithm (MECAA) of MIoT, makes all fault-free nodes communicate with each other and collect the exchanged messages to decide an agreement value.
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