Error detection encoding for multi-threshold capture mechanism

Abstract

The crosstalk induced delays have become a significant bottleneck in deep sub-micron communication. The encoding techniques proposed in existing literature, that cope with crosstalk while providing error detection capabilities require significantly high redundancy to achieve the goal. It is shown in recent publications that the effect of crosstalk can be mitigated by using multiple threshold voltages without the use of redundant bits. However such a method is more susceptible to noise due to the reduced voltage slack introduced by multiple threshold voltages. This paper proposes a novel error detection encoding technique suitable for multi-threshold capture mechanism. The proposed technique uses multiple thresholds to mitigate the effect of crosstalk while introducing redundant bits for error detection purpose only. As observed in the experimental evaluation section, the proposed encoding technique has significantly less amount of redundancy as compared to existing techniques.