Energy-efficient communication in battery-constrained portable devices

Athina Markopoulou; yan  Li; Carri Chan; Nick Bambos

2nd International ICST Conference on Broadband Networks

Research Article

Energy-efficient communication in battery-constrained portable devices

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/ICBN.2005.1589644,
    author={Athina Markopoulou and yan  Li and Carri Chan and Nick Bambos},
    title={Energy-efficient communication in battery-constrained portable devices},
    proceedings={2nd International ICST Conference on Broadband Networks},
    publisher={IEEE},
    proceedings_a={BROADNETS},
    year={2006},
    month={2},
    keywords={},
    doi={10.1109/ICBN.2005.1589644}
}

Athina Markopoulou
yan Li
Carri Chan
Nick Bambos
Year: 2006
Energy-efficient communication in battery-constrained portable devices
BROADNETS
IEEE
DOI: 10.1109/ICBN.2005.1589644

Athina Markopoulou¹^,*, yan Li¹^,*, Carri Chan¹^,*, Nick Bambos¹^,*

1: Electrical Engineering Department, Stanford University, CA, USA

*Contact email: amarko@stanford.edu, liyan@stanford.edu, cwchan@stanford.edu, bambos@stanford.edu

Abstract

Portable devices (such as personal digital assistants and laptops with wireless connectivity) are becoming ubiquitous. As their functionality and capabilities increase, their energy consumption requirements also increase. Yet, these devices have to operate on limited batteries. In order to maximize the battery lifetime, it is necessary to optimize the use of energy at various components of such a device. In this paper, we consider a single portable device operating on a limited battery that transmits information over an interference-limited wireless channel. We seek to optimize the power consumption on the communication radio in this device, by controlling both the operation mode and the transmission power. We model the general problem using dynamic programming, obtain the optimal solutions for insightful special cases and explore various design tradeoffs. Our work provides an analytical framework for stochastic modeling and optimization of energy spent for communications in battery-operated portable devices.

Published: 2006-02-13
Publisher: IEEE

: http://dx.doi.org/10.1109/ICBN.2005.1589644