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This paper presents a 2048 bit, rate 1/2 soft decision decoder for a new class of codes known as turbo Gallager codes. The decoder can support up to 1 Gbit/s code rate and performs up to 48 decoding iteration ensuring at the same time high throughput and good coding gain. In order to evaluate the performance and the gate complexity of the decoder VLSI architecture, it has been synthesized in a 0.18 μm standard-cell CMOS technology.
Date of Conference: 31 Aug.-3 Sept. 2004