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In this paper, we propose an ultra high-throughput LDPC decoder SOC to fulfill the requirement of IEEE 802.15.3c standard. By implementing a macro-layer fully parallel architecture, our proposed decoder takes only 4 clock cycles to finish one layered decoding iteration. Interconnection complexity problem introduced by high-parallel decoding is nicely solved by proposed reusable message permutation...
Low power design has become one of the most significant requirements when CMOS technology entered the nanometer era. Therefore, timing budget is often performed to slow down as many components as possible so that timing slacks can be applied to reduce the power consumption while maintaining the performance of the whole design. Retiming is a procedure that involves the relocation of flip-flops (FFs)...
Variable block size motion estimation algorithm is the effcient approach to reduce the temporal redundancies and it has been adopted by the latest video coding standard H.264/AVC. The computational complexity augment coming from the variable block size technique makes the hardwired accelerator essential, especially for real-time applications. In this paper, the authors apply the architecture level...
This paper proposes the power-efficient LDPC decoder architecture which features (1) a FIFO buffering based rapid convergence schedule which enables the decoder to accelerate the decoding throughput without increasing the required number of memory bits, (2) an intermediate message compression technique based on a clock gated shift register which reduces the read and write power dissipation for the...
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