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J. Lechner, A. Steininger, F. Huemer:
"Methods for Analysing and Improving the Fault Resilience of Delay-Insensitive Codes";
Talk: 33rd IEEE International Conference on Computer Design, New York City, USA; 2015-10-19 - 2015-10-21; in: "33rd IEEE International Conference on Computer Design", (2015), 8 pages.

Delay-insensitive (DI) codes are usually prone to
transient faults occurring during an ongoing transmission. For
most DI codewords even a single transient can turn an incomplete
transmission into a complete codeword, which is different
from the originally sent codeword. Unless further redundant
information is provided, the receiver has no means to detect
such a transmission fault. In this paper we therefore propose
two methods to systematically increase redundancy, either by
i) building resilient subcodes, or by ii) using a two-step data
encoding where error detecting codes are appropriately combined
with delay-insensitive codes. In contrast to existing approaches we
carefully avoid the introduction of timing assumptions to mask
faults. Both methods are generic and can be used for any 4-phase
DI code. In this paper we apply them to m-of-n codes, Berger
and Zero-Sum codes and thoroughly analyse the efficiency of the
resulting coding schemes.