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http://dx.doi.org/10.17661/jkiiect.2017.10.5.462

A Performance Analysis of Distributed Storage Codes for RGG/WSN  

Cheong, Ho-Young (Department of Information and Communication Engineering, Namseoul University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.10, no.5, 2017 , pp. 462-468 More about this Journal
Abstract
In this paper IoT/WSN(Internet of Things/Wireless Sensor Network) has been modeled with a random geometric graph. And a performance of the decentralized code for the efficient storage of data which is generated from WSN has been analyzed. WSN with n=100 or 200 has been modeled as a random geometric graph and has been simulated for their performance analysis. When the number of the total nodes of WSN is n=100 or 200, the successful decoding probability as decoding ratio ${\eta}$ depends more on the number of source nodes k rather than the number of nodes n. Especially, from the simulation results we can see that the successful decoding rate depends greatly on k value than n value and the successful decoding rate was above 70% when $${\eta}{\leq_-}2.0$$. We showed that the number of operations of BP(belief propagation) decoding scheme increased exponentially with k value from the simulation of the number of operations as a ${\eta}$. This is probably because the length of the LT code becomes longer as the number of source nodes increases and thus the decoding computation amount increases greatly.
Keywords
Random Walk; Random Geometric Graph; Internet of Things; Decoding Ratio; $Erd{\ddot{o}}s-R{\grave{e}}nyi$ Mode;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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