Abstract
In the Internet of Things a code resolution service provides a discovery mechanism for a requester to obtain the information resources associated with a particular product code immediately. In large scale application scenarios a code resolution service faces some serious issues involving heterogeneity, big data and data ownership. A code resolution service network is required to address these issues. Firstly, a list of requirements for the network architecture and code resolution services is proposed. Secondly, in order to eliminate code resolution conflicts and code resolution overloads, a code structure is presented to create a uniform namespace for code resolution records. Thirdly, we propose a loosely coupled distributed network consisting of heterogeneous, independent; collaborating code resolution services and a SkipNet based code resolution service named SkipNet-OCRS, which not only inherits DHT's advantages, but also supports administrative control and autonomy. For the external behaviors of SkipNet-OCRS, a novel external behavior mode named QRRA mode is proposed to enhance security and reduce requester complexity. For the internal behaviors of SkipNet-OCRS, an improved query algorithm is proposed to increase query efficiency. It is analyzed that integrating SkipNet-OCRS into our resolution service network can meet our proposed requirements. Finally, simulation experiments verify the excellent performance of SkipNet-OCRS.
Highlights
Nowadays, the Internet of Things (IoT) has become a hot research topic in both the scientific and industrial fields
In order to evaluate the performance of SkipNet-Original Code Resolution Service (OCRS), we use a simple packet-level, discrete event simulator that counts the number of packets sent over a physical link and assigns a unit hop count for each link
We propose a comprehensive list of requirements and a uniform code structure for code resolution in large scale dynamic application scenarios
Summary
The Internet of Things (IoT) has become a hot research topic in both the scientific and industrial fields. Each single physical object can be associated with a standardized product code to identify and locate itself in the IoT. The code can be contained in a RFID tag that is attached to the physical object of interest or stored in an embedded device that is equipped with the physical object of interest. In these application scenarios where physical objects cannot integrate to the IoT directly, the product code is the indispensable key identifier for users to capture and share the real-time information about these physical objects.
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