TY - GEN
T1 - Optimization of power consumption for wireless sensor networks
AU - Cheng, Sheng Tzong
AU - Shih, Jia Shing
PY - 2012/3/26
Y1 - 2012/3/26
N2 - Transmission using excess power not only shortens the lifetime of sensor nodes, but also introduces interference. Packets should ideally be transmitted with moderate power. This work proposes a multi-level power adjustment (MLPA) mechanism for a wireless sensor network to prolong the lifetime of individual nodes and the overall network. An analytical model of the MLPA mechanism with m distinct power levels (m-LPA) is constructed. For 3-LPA, the closed-form expression of the optimal power setting is determined and the mean transmission power is minimized to one third of original fixed power. Besides, we found that average power consumption of our proposed mechanism is 47% higher than original. Thus, each node can extend 2.5 times of life time. And we shown the relations between m and density in simulation result.
AB - Transmission using excess power not only shortens the lifetime of sensor nodes, but also introduces interference. Packets should ideally be transmitted with moderate power. This work proposes a multi-level power adjustment (MLPA) mechanism for a wireless sensor network to prolong the lifetime of individual nodes and the overall network. An analytical model of the MLPA mechanism with m distinct power levels (m-LPA) is constructed. For 3-LPA, the closed-form expression of the optimal power setting is determined and the mean transmission power is minimized to one third of original fixed power. Besides, we found that average power consumption of our proposed mechanism is 47% higher than original. Thus, each node can extend 2.5 times of life time. And we shown the relations between m and density in simulation result.
UR - http://www.scopus.com/inward/record.url?scp=84858691412&partnerID=8YFLogxK
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U2 - 10.1007/978-3-642-28744-2_7
DO - 10.1007/978-3-642-28744-2_7
M3 - Conference contribution
AN - SCOPUS:84858691412
SN - 9783642287435
T3 - Lecture Notes in Electrical Engineering
SP - 55
EP - 62
BT - Advances in Electric and Electronics
T2 - 2012 2nd International Conference on Electric and Electronics, EEIC 2012
Y2 - 21 April 2012 through 22 April 2012
ER -