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- Nilsson, Peter, et al.
(författare)
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Ultra Low Power Hardware for Computing Squared Euclidean Distances
- 2011
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Ingår i: 2011 20th European Conference on Circuit Theory and Design (ECCTD). - Piscataway, NJ : IEEE Press. - 9781457706172 - 9781457706165 ; , s. 580-583
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Konferensbidrag (refereegranskat)abstract
- Computing Euclidean Distances is a very important operation in digital communication, especially in the case of trellis coded modulation, where it is used numerously. This paper shows that a substantial reduction in complexity can be achieved in hardware processing elements for computing Euclidean Distances. A reduction in complexity down to 39% is shown compared to traditional designs. The paper also shows that the optimized design can be done completely ripple free, which leads to a reduction of the critical path to far more than half. The reduction in complexity leads to a reduction in power consumption. The ripple free design also leads to lower power consumption for two reasons: the rippling in itself leads to unnecessary glitches, which costs power and the shorter critical path enables a lower supply voltage, which reduces the power consumption as well. © 2011 IEEE.
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