A rate selection algorithm for quantized undithered dynamic supply voltage scaling (poster session)

Authors:
Lama H. Chandrasena;Michael J. Liebelt
Affiliations:
Dept. of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, SA 5005, Australia;Dept. of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
Venue:
ISLPED '00 Proceedings of the 2000 international symposium on Low power electronics and design
Year:
2000

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Abstract

In this paper we propose a novel rate calculation algorithm called Quantized Rate Selection (QRS) for quantized undithered dynamic supply voltage scaling (DSVS) systems. The algorithm monitors the total buffered workload, and where possible selects a ratevalue equal to a quantized rate value. At quantized rate values, energy dissipation of quantized DSVS systems approaches continuous voltage level DSVS systems. Our experimental work on FMIDCT computation using nine video sequences and a 4-level quantized undithered system shows that additional energy savings of 1.4% to 18.5% can be achieved from QRS, compared to the existing averaging technique.