Error-aware power management for memory dominated OFDM systems

Muhammad S. Khairy, Ahmed M. Eltawil, Fadi J. Kurdahi, Amin Khajeh

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

Abstract

Mobile wireless systems are typically designed assuming worst-case propagation scenarios, a situation that occurs infrequently in real-life. To reduce power, we exploit the dynamic and statistical nature of wireless signals to aggressively scale the supply voltage using Voltage over Scaling (VoS) on buffering memory modules during run-time. VoS introduces a controlled amount of spatially random errors in embedded memory modules. This paper presents a novel approach to model VoS induced noise as Gaussian noise that can be analytically described to obtain the system performance in terms of BER and PER. Finally, a power management policy is presented that utilizes the available slack in the received SNR with the goal of minimizing power consumption, while keeping performance within normative margins. © 2013 IEEE.
Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
PublisherIEEE Computer Societyhelp@computer.org
ISBN (Print)9781479923908
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

Fingerprint Dive into the research topics of 'Error-aware power management for memory dominated OFDM systems'. Together they form a unique fingerprint.

Cite this