Energy Efficient Transmission Error Recovery for Wireless Sensor Networks
Transmission errors are inherent in wireless communications because of the instability of wireless channels resulting due to channel fading, time-frequency coherence, inter-band interference, etc, and thus receiving unreliable message packet. This necessitates the retransmission of packet which further results into extra processing and increased energy consumption of the sensor nodes. In this paper, the authors propose a new approach of an energy-efficient transmission error recovery algorithm for wireless sensor networks. In the proposed methodology, the data packet is divided into small sub-packets and retransmission is done for only corrupted portion of the sub-packets.