Adaptive Error Control for Networks-on-Chip Links

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• Prof Paul Ampadu, PhD; University of Rochester NY USA
• Monday 24 May 2010, 14:00-15:00
• Gabor Seminar Room (Room 611).

If you have a question about this talk, please contact Wiesia R Hsissen.

Abstract: Existing methods to manage transient and permanent errors in NOC links typically handle these errors independently at various layers in the NOC protocol stack. This separated error management results in large hardware overheads. In this work, we propose a cooperative cross-layer error control method to manage transient and permanent errors in NOC links. To reduce energy overhead, configurable error control coding adapts the coding strength or number of redundant wires to varying noise conditions, achieving required error detection/correction capabilities. Infrequently used redundant wires are utilized as spare wires to replace permanently unusable links. Case studies implementing the proposed techniques show that our method significantly reduces the energy per useful packet as well as average latency, compared to previous works.

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