CE Perkins

Chih-Lun Chou

DB Johnson

E Althaus

Gwo-Jiun Horng

IEEE Std 802.15.4, Part 15.4

IF Akyildiz

J Wang

Jia-Shing Shih

JN Al-Karaki

M Huang

M Nickray

PS Mundra

Q Gao

RA Santos

S Panichpapiboon

Sheng-Tzong Cheng

Tun-Yu Chang

W Ye

ZJ Hass

EURASIP Journal on Wireless Communications and Networking

Abstract
          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 study proposes a multi-level power adjustment (MLPA) mechanism for a wireless sensor network to prolong the lifetime of individual nodes and the overall network. In this study, we constructed an analytical model of the MLPA mechanism with m distinct power levels (m-LPA). For m-LPA, the closed-form expression of the optimal power setting was determined and the mean transmission power was minimized to one-third of the original fixed-transmission power. We found that the average power consumption of our proposed mechanism is 33.93% higher than that of fixed-transmission power. Thus, each node can extend the lifetime by 2.5 times. We have shown the relations between m and density in simulation results. Although the mechanism worked smoothly in this study, the sensors do not need to handle the distance and interference problem.</jats:p

Crossref

MLPA-conservation mechanism in wireless sensor network environments

https://jwcn-eurasipjournals.springeropen.com/track/pdf/10.1186/1687-1499-2012-343?site=jwcn-eurasipjournals.springeropen.com

MLPA-conservation mechanism in wireless sensor network environments

Abstract

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