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View all- Yang YKim Y(2021)Low-Power Cross-Layer Error Management Using MIMO-LDPC Iterative Decoding for Video ProcessingIEEE Access10.1109/ACCESS.2021.31156719(133062-133075)Online publication date: 2021
Unequal Error Protection Based on DVFS for JSCD in Low-Power Portable Multimedia Systems
Authors: 
Yoon Seok Yang, Gwan ChoiAuthors Info & Claims
Yoon Seok Yang, Gwan ChoiAuthors Info & ClaimsArticle No.: 30, Pages 1 - 21
Abstract
This article presents a low-power decoder design for joint source-channel decoding (JSCD) based on a novel unequal error protection (UEP) scheme over additive white gaussian noise (AWGN) channels. Conventional JSCD schemes, adopting low-density parity check (LDPC) codes for multimedia devices, typically operate at a fixed-time decoding loop, regardless of the quality of data received. We present a JSCD scheme that achieves reduction in power through minimum energy decoding and dynamic voltage and frequency scaling (DVFS). Consequently, up to 39% power reduction is achieved in Foreman, Akiyo, and Mobile video streams without performance degradation in reconstructed video quality.
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Index Terms
- Unequal Error Protection Based on DVFS for JSCD in Low-Power Portable Multimedia Systems
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Publication History
Published: 01 July 2012
Accepted: 01 July 2011
Revised: 01 February 2011
Received: 01 February 2009
Published in TECS Volume 11, Issue 2
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View all- Yang YKim Y(2021)Low-Power Cross-Layer Error Management Using MIMO-LDPC Iterative Decoding for Video ProcessingIEEE Access10.1109/ACCESS.2021.31156719(133062-133075)Online publication date: 2021
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