Abstract
In recent years, research on residue number systems (RNS) has targeted larger dynamic ranges (DRs) in order to further explore their inherent parallelism. In this brief, we start from the traditional three-moduli set {2n, 2n - 1, 2n + 1}, with an equivalent 3 n-bit DR; propose horizontal and vertical extensions to scale the DR; and improve the parallelism according to the requirements. This brief also introduces a method to design general reverse converters for extended moduli sets with the desired DRs, whereas the existing state of the art allows to achieve at most (8n + 1) bit. The experimental results suggest that the proposed moduli set extensions allow for larger and more balanced moduli sets, in comparison with the state of the art, resulting in an improvement of the overall RNS performance at the cost of a slower reverse conversion operation.
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