Maximum achievable energy reduction using coding with applications to deep sub-micron buses

In this work we ask: How much can we reduce the power consumption in deep-sub-micron buses using coding techniques? We answer the question in two steps. First we give the minimum energy per information bit required for communicating through deep-sub-micron buses. Then, we show that the minimum energy is asymptotically achievable using coding. In addition, a simple differential coding scheme is proposed that achieves most of the possible energy reduction. The methodology used here also applies to more general communication and computation models.

Duke Scholars

Author Vahid Tarokh Electrical and Computer Engineering