Optimization of power consumption for wireless sensor networks

Sheng Tzong Cheng, Jia Shing Shih

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish
Title of host publicationAdvances in Electric and Electronics
Number of pages8
Publication statusPublished - 2012 Mar 26
Event2012 2nd International Conference on Electric and Electronics, EEIC 2012 - Sanya, China
Duration: 2012 Apr 212012 Apr 22

Publication series

NameLecture Notes in Electrical Engineering
Volume155 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


Other2012 2nd International Conference on Electric and Electronics, EEIC 2012

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering


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