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Implementation of a UMTS Turbo-decoder on a dynamically reconfigurable platform
No full textHigh hardware design and mask production costs dictate the need to reuse
an architectural platform for as many applications as possible. Embedded
multimedia portable devices are required to perform in real time a huge
variety of different algorithms, ranging from audio and image
processing, to channel coding, to video games and java virtual machines.
Dynamically reconfigurable architectures are an effective means to cope
with both requirements. However, their effective and efficient use today
is hindered by a lack of methodology and tools to extensively explore
the hardware/software (HW/SW) design space, without requiring software
developers to have a deep knowledge of the underlying architecture. This
paper describes one such methodology, which extends the software
programming model to the design flow for a reconfigurable processor. Its
effectiveness is shown with the case study of a turbo decoder for
universal mobile telecommunications systems, in which a remarkable 11X
speed-up and 4X reduction of energy requirements with respect to a pure
software implementation has been obtained, by mapping the more
computation-intensive kernels to the reconfigurable hardware
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