DATE Panel: Chips of the Future: Soft, Crunchy or Hard?
Proceedings of the conference on Design, automation and test in Europe - Volume 2
A Scalable System Architecture for High-Throughput Turbo-Decoders
Journal of VLSI Signal Processing Systems
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Wireless communication penetrates more and more areas of our everyday lives. Turbo-Codes provide good forward-error correction to improve the data transfer reliability. They are used in current standards and future system designers considers them promising candidates. Dedicated hardware, however, is too expensive to use in a new and still rapidly changing system; due to the non-recurring engineering and mask costs.In this paper we therefore present a scalable Turbo-Decoder architecture targeted towards FPGA implementation for low-volume devices. It allows to optimally exploit the given hardware resources on FPGA to match the desired system throughput. Our design is ported to the Xilinx Virtex-II family. On the Virtex-II 3000, we achieve a maximum throughput of 26Mbit/s at 84MHz with a latency of 185μs.