naa a22 4500 510797318 CHVBK 20180411083341.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11277-013-1260-3 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1260-3 ODSA: Chord-Based Object Discovery Service Architecture for the Internet of Things [Elektronische Daten] [De-Gang Xu, Lei-Hua Qin, Jong-Hyuk Park, Jing-Li Zhou] In the emerging Internet of Things (IOT), as a means to fulfill item-level lookup, lookup service or discovery service plays a critical role. However, existing lookup service and discovery service of IOT mainly rely on a centralized or a chain-style framework, thus have some drawbacks or bottlenecks to prevent them from being widely adopted, while the issue of locating hot-point resource has received much less attention, as well as the item-level lookup service is still missing. Therefore, we present object discovery service architecture (ODSA), a distributed serial number level object discovery service architecture using Chord for the IOT, give its two kinds of framework and some relevant mechanisms, and mainly focus on the Double-Ring architecture for enhancing the lookup efficiency and relieving the congestion of network by balancing the flows of query. Additionally, we analyze theoretically the node number constraint relationship between inside ring and outside ring. We conduct a simulation study based on P2PSim of MIT and our prototype to validate and evaluate the analysis and our solution. Results from the simulation validate the correctness of the theoretical analysis and the availability, scalability of our solution. The related comparisons and analysis show that our solution is available and outperforms substantially other approaches of current IOT lookup service. Springer Science+Business Media New York, 2013 Internet of Things nationallicence Chord nationallicence Discovery service nationallicence Object naming service nationallicence Object discovery service nationallicence Xu De-Gang School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China aut Qin Lei-Hua School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China aut Park Jong-Hyuk Department of Computer Science and Engineering, Seoul National University of Science and Technology, Seoul, Korea aut Zhou Jing-Li School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 73/4(2013-12-01), 1455-1476 0929-6212 73:4<1455 2013 73 11277 https://doi.org/10.1007/s11277-013-1260-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1260-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu De-Gang School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China aut NATIONALLICENCE 700 1- Qin Lei-Hua School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China aut NATIONALLICENCE 700 1- Park Jong-Hyuk Department of Computer Science and Engineering, Seoul National University of Science and Technology, Seoul, Korea aut NATIONALLICENCE 700 1- Zhou Jing-Li School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 73/4(2013-12-01), 1455-1476 0929-6212 73:4<1455 2013 73 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer