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TPC-BS: Transmission power control based on binary search in the wireless sensor networks

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1 Author(s)
Seung-Hyun Oh ; Computer Engineering Dept., Dongguk University, GyeongJu, South Korea

This paper proposed a new method to optimize energy consumption in a wireless modem by setting up a transmission power value according to the distance between nodes and circumstance in the MAC layer of IEEE 802.15.4. The proposed method can dynamically find an optimal transmission power range using the binary search scheme and minimize overhead caused by multiple message transmissions in determining the optimal transmission power. The determined transmission power is used for transmitting data packets and can be modified dynamically depending on the changes in a network environment when exchanging data packets and acknowledgement signals. The results of the simulations showed 30% reduction in energy consumption while 2.5 times increase in data transmission rate per unit of energy compared with IEEE 802.15.4 standard.

Published in:

Sensors Applications Symposium (SAS), 2012 IEEE

Date of Conference:

7-9 Feb. 2012