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Localization in mobile communication is a broad topic that has received considerable attention from the research community during the past few decades. The approaches suggested to estimate location are implemented with different concepts, functionalities, scopes and technologies. The major contribution of this survey is to analyze and identify relevant parameters to compare different approaches and to point out the best method for low power and restricted memory wireless sensor nodes. A Wireless Sensor Network (WSN) is formed by hundreds of small, low-cost nodes which have limitations in memory, energy, and processing capacity.
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