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Channel-aware energy efficient transmission strategies for large wireless sensor networks

journal contribution
posted on 2010-07-01, 00:00 authored by H Jeon, Jinho Choi, H Lee, J Ha
We propose a channel-aware type-based multiple access (TBMA) scheme for longer lifetime of WSNs. In an effort to minimize data transmission, the proposed scheme allows a set of sensors to be opportunistically activated in TBMA when their channel gains are higher than a threshold broadcasted by the fusion center. In each transmission, the activated sensors control their transmit power in a way to maximize an error exponent of the detection error performance. We analyze the DEPs of the proposed scheme and show that it provides significant energy saving as compared to the random selection scheme especially in the low signal-to-noise ratio regime where most of power-limited sensors are working.

History

Journal

IEEE signal processing letters

Volume

17

Pagination

643-646

Location

Piscataway, N.J.

ISSN

1070-9908

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2010, IEEE

Issue

7

Publisher

IEEE

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