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Multi-hop structure and broadcast channel of wireless sensor networks necessitate error control schemes to achieve reliable data transmission. The energy efficiency of error control schemes should be considered because of the strict energy constraints of wireless sensor networks. Wireless sensor networks require simple and facile error control schemes because of the low complexity request of sensor nodes. Automatic Repeat reQuest (ARQ) and Forward Error Correction (FEC) are the key error control strategies in wireless sensor networks. In this paper, the authors discuss these error control schemes using energy efficiency analysis.
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