A Performance Analysis of Distributed Storage Codes for RGG/WSN

Ho-Young Cheong · 한국정보전자통신기술학회 논문지 · 2017

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    or  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  depends more on the number of source nodes  rather than the number of nodes .Especially, from the simulation results we can see that the successful decoding rate depends greatly on  value than  value and the successful decoding rate was above 70% when  ≦ .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 .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.

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