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Energy Efficiency and Quality of Data Reconstruction through Data-Coupled Clustering for Self-Organi

شروع موضوع توسط AdMiN ‏17/7/16 در انجمن الگوریتم های خوشه بندی و جمع آوری داده

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  1. AdMiN

    AdMiN Administrator هیات مدیره

    Abstract—Energy efficiency has been a leading issue inWireless Sensor Networks (WSNs) and has produced a vast amount of research. Although the classic tradeoff has been between quality of gathered data versus lifetime of the network, most works gave preference to an increased network lifetime at the expense of the data quality. A common approach for energy efficiency is partitioning the network into clusters with correlated data, where representative nodes simply transmit or average measurements inside the cluster. In this work, we explore the joint use of innetwork processing techniques and clustering algorithms. This approach seeks both high data quality with a controlled number of transmissions using an aggregation function and an energy efficient network partition, respectively. The aim of this combination is to increase energy efficiency without sacrificing the data quality. We compare the performance of the Second-Order Data-Coupled Clustering (SODCC) and Compressive-Projections Principal Component Analysis (CPPCA) algorithm combination, in terms of both energy consumption and quality of the data reconstruction, to other combinations of state of the art clustering algorithms and in-network processing techniques. Among all the considered cases, the SODCC+CPPCA combination revealed a perfect balance between data quality, energy expenditure and ease of network management. The main conclusion of this paper is that the design of WSN algorithms must be processing-oriented rather than transmission-oriented, i.e., investing energy on both clustering and in-network processing algorithms ensures both energy efficiency and data quality

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