logo 公司名称 Ubiquitous IoT Structure via Homogeneous Data Type Modelling Mehran Alidoost Nia Reza Ebrahimi Atani and A. K. Haghi Department of Computer Engineering, University of Guilan International Symposium on Telecommunications, Tehran, Sep 2014 

logo 公司名称 International Symposium on Telecommunications, Iran, Tehran, September 2014 Overview  What is IoT and its applications?  Type Analysis and modeling  Case study on CAN networks.  Type elicitation and SDTs  Experimental results & comparison  Conclusion 

logo 公司名称 An Introduction to IoT  The Internet of Things (IoT) refers to the interconnection of uniquely identifiable embedded computing-like devices within the existing Internet infrastructure.  Applications like: Environmental Monitoring, Infrastructure Management, Energy Management, Medical and Healthcare Systems, Large Scale Deployments and Transport Systems. International Symposium on Telecommunications, Iran, Tehran, September 2014 

logo 公司名称 IoT International Symposium on Telecommunications, Iran, Tehran, September 2014 

logo 公司名称 Problem?  Connecting to all devices  It takes huge amount of computations  Each layer should be able to communicate with higher layers.  Our solution: Homogeneity using Data Type modeling International Symposium on Telecommunications, Iran, Tehran, September 2014 

logo 公司名称 Data Type modeling  To elicit widely used data types in computing nodes of the network.  We call them SDT International Symposium on Telecommunications, Iran, Tehran, September 2014 

logo 公司名称 IoT structure & Case Study  It could be relaxed as IoT structure model  Only critical changes can change the entire behavior of the model.  Case Study: Controller Area Network (CAN)  XC90 IoT structure:26 nodes on 4 busses International Symposium on Telecommunications, Iran, Tehran, September 2014 

logo 公司名称 Type Analysis International Symposium on Telecommunications, Iran, Tehran, September 2014 sample list Type #1 (int) Type #2 (float) Type #3 (long) sample #1 139 43 22 sample #2 55 0 0 sample #3 8 0 22 sample #4 33 38 0 sample #5 25 0 6  TYPE OF OPERATIONS  APPROXIMATE DISRIBUTION OF TYPES Type of bus Type #1 (int) Type #2 (float) Type #3 (long) red 45 % 0 0 green-black 15 % 30 % 20 % blue 40 % 70 % 80 % 

logo 公司名称 SDT Elicitation International Symposium on Telecommunications, Iran, Tehran, September 2014  Critical coefficient (CC)  Critical Number (CN)  Critical Percentage (CP)  Normal Coefficients (C): 4, 2 and 1. 8 

logo 公司名称 9 Cluster Structure International Symposium on Telecommunications, Iran, Tehran, September 2014  Pervasive structure for IoT by type clustering.  Each computational node is put near the demands (in same cluster) 

logo 公司名称 10 Experimental Results International Symposium on Telecommunications, Iran, Tehran, September 2014  Red bus before (left) and after (right) performing homogeneous type model  Response Time and Sent Frames 

logo 公司名称 11 Limited-Case Scenario International Symposium on Telecommunications, Iran, Tehran, September 2014  Limitation for upper bound packet sending  It reduces amount of response time in congested area. 

logo 公司名称 12 Conclusion International Symposium on Telecommunications, Iran, Tehran, September 2014  type modeling for pervasive devices has been proposed.  It helps to develop IoT in a reliable structure.  It is established between computational layers of IoT.  This can reduce response time of the entire network and puts computational nodes near the targets.  In our case study on CAN network, Response Time was reduced about 40%.  Simultaneously, number of availability of sent frames increased about 30%.  Limited-case scenario can be more efficient and improve the final results. 

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