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This paper presents a soft reliability-based binary message-passing algorithm for decoding LDPC codes. This algorithm outperforms the existing weighted bit-flipping algorithms with much less computational complexity. It is particularly effective for decoding LDPC codes constructed based on finite-geometries and finite fields. The proposed algorithm can be simplified for applications in communication...
This paper presents an FPGA-based implementation of a tri-mode decoder for decoding the cyclic (4095,3367) Euclidean geometry LDPC code which has minimum distance 65 and no trapping set of size less than 65. The implementation integrates three compatible decoding algorithms in a single decoder. The three decoding algorithms are the one-step majority-logic decoding (OS-MLGD) algorithm and two iterative...
Forward blocking capability of double gate IGBTs (DG-IGBT) at high temperature was analysed using numerical simulations. It was found that the DG-IGBT behaves like a DMOS transistor at 200°C with much lower leakage current compared with that of a conventional IGBT. This result suggests that the DG-IGBT can safely operate at temperatures up to 200°C.
A novel concept to achieve fast switching, high power, low loss diode is proposed. The MOS Controlled Diode (MCD) utilizes a MOSFET to control the injection of minority carriers during and before the reverse recovery of the diode. One of such device structure, the Trench MCD (TMCD) was analyzed using two-dimensional numerical simulation. Simulated results show that the TMCD provides good control...
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