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Continuous improvement in hardware design and advances in wireless communication have enabled the deployment of various wireless sensor applications. Though, sensor nodes are highly resource constrained in terms of limited processing speed, runtime memory, persistent storage, communication bandwidth and finite energy. Flash memory has become a more widespread storage medium for modern wireless devices because of its effective features like nonvolatility, small size, light weight, fast access speed, shock resistance, high reliability and low power consumption. Even though flash memory offers many advantages, its special hardware read, write and erase characteristics impose design challenges on storage systems. This survey analysis the flash based storage management techniques proposed for resource constraint sensor devices, in terms of data life, device life, energy, and storage efficiency. Comprehensive simulation results show gradually improved performance in area of wireless sensor networks.
Note: This article was mistakenly omitted from the original IEEE Xplore conference submission.