Error-aware algorithm/architecture coexploration for video over wireless applications

Amin Khajeh, Minyoung Kim, Nikil Dutt, Ahmed M. Eltawil, Fadi J. Kurdahi

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

3 Scopus citations

Abstract

In this article, we propose a cross-layer algorithm/architecture coexploration for wireless multimedia systems to coordinate interactions among sublayer optimizers for improvements in energy/QoS/reliability. By exploiting the inherent redundancy in wireless multimedia systems, we generate an expanded design space over traditional layer-specific approaches. Specifically, we control the error resilient encoder at the application layer to provide awareness of architectural exploration at the physical layer allowing new design points with lower power consumption via aggressive voltage scaling. While trying to reduce energy consumption, the fault tolerant technique compensates the effect of the hardware and network errors due to aggressive voltage scaling and lossy transmission, respectively. Our experiments on H.263 video over a WCDMA communication system demonstrate that coexploration enlarges the feasible design space, which results in significant power savings of more than 20% in the WCDMA modem. © 2012 ACM.
Original languageEnglish (US)
Title of host publicationTransactions on Embedded Computing Systems
DOIs
StatePublished - Jun 1 2012
Externally publishedYes

Fingerprint Dive into the research topics of 'Error-aware algorithm/architecture coexploration for video over wireless applications'. Together they form a unique fingerprint.

Cite this