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2007
IEEE

Energy-Efficient Double-Binary Tail-Biting Turbo Decoder Based on Border Metric Encoding

9 years 7 months ago
Energy-Efficient Double-Binary Tail-Biting Turbo Decoder Based on Border Metric Encoding
—This paper presents an energy-efficient turbo decoder based on border metric encoding, which is especially suitable for non-binary circular turbo codes. In the proposed method, the size of the branch memory is reduced to half and the dummy calculation is removed at the cost of a small-sized memory that holds encoded border metrics. Due to the small size and infrequent access to the border memory, power consumption for soft-input soft-output (SISO) decoding is reduced by 26.0%. Based on the proposed SISO decoder and the dedicated hardware interleaver, a double-binary tail-biting turbo decoder is designed for WiMAX standard using a 0.18 µm CMOS process and it can support 12.14Mbps at operating frequency of 100MHz.
Ji-Hoon Kim, In-Cheol Park
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where ISCAS
Authors Ji-Hoon Kim, In-Cheol Park
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