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Journal of Electrical and Computer Engineering
Volume 2012 (2012), Article ID 697039, 19 pages
http://dx.doi.org/10.1155/2012/697039
Research Article

Self-Calibrated Energy-Efficient and Reliable Channels for On-Chip Interconnection Networks

Institute of Electronics, National Chiao-Tung University, Hsin-Chu 300, Taiwan

Received 15 July 2011; Accepted 17 August 2011

Academic Editor: Jiang Xu

Copyright © 2012 Po-Tsang Huang and Wei Hwang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Energy-efficient and reliable channels are provided for on-chip interconnection networks (OCINs) using a self-calibrated voltage scaling technique with self-corrected green (SCG) coding scheme. This self-calibrated low-power coding and voltage scaling technique increases reliability and reduces energy consumption simultaneously. The SCG coding is a joint bus and error correction coding scheme that provides a reliable mechanism for channels. In addition, it achieves a significant reduction in energy consumption via a joint triplication bus power model for crosstalk avoidance. Based on SCG coding scheme, the proposed self-calibrated voltage scaling technique adjusts voltage swing for energy reduction. Furthermore, this technique tolerates timing variations. Based on UMC 65 nm CMOS technology, the proposed channels reduces energy consumption by nearly 28.3% compared with that for uncoded channels at the lowest voltage. This approach makes the channels of OCINs tolerant of transient malfunctions and realizes energy efficiency.