Tryear: 2003

Trmonth: 8

Trnumber: 3

Title: Power management for energy-aware communication systems

Abstract: System-level power management has become a key technique to render modern wireless communication devices economically viable. Despite their relatively large impact on the system energy consumption, power management for radios has been limited to shutdown-based schemes, while processors have benefited from superior techniques based on dynamic voltage scaling (DVS). However, similar scaling approaches that trade-off energy versus performance are also available for radios. To utilize these in radio power management, existing packet scheduling policies have to be thoroughly rethought to make them energy-aware, essentially opening a whole new set of challenges the same way the introduction of DVS did to CPU task scheduling. We use one specific scaling technique, dynamic modulation scaling (DMS), as a vehicle to outline these challenges, and to introduce the intricacies caused by the nonpreemptive nature of packet scheduling and the time-varying wireless channel.

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Urlpdfpaper: http://www.ee.ucla.edu/~vijay/files/tecs03_dpm.pdf

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Pubin: ACM Transactions on Embedded Computing Systems

Pubvol: 2

Pubnum: 3

Pubnum end:

Pubpagefirst: 431

Pubpagelast: 447

Pubpagecount: 17

Pubdate: 2003-08-15

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Publisher: ACM Press

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Document category: #<DocumentCategory:0x007f418c1dd650>

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