In this paper, a Reed–Solomon Product-Code (RS-PC) decoder for DVD applications is presented. It mainly contains two frame-buffer controllers, a (182, 172) row RS decoder, and a (208, 192) column RS decoder. The RS decoder features an area-efficient key equation solver using a novel modified decomposed inversionless Berlekamp–Massey algorithm. The proposed RS-PC decoder solution was implemented...

The backward direction Soft Output Viterbi Algorithm (a backward SOVA) is compared with the conventional SOVA (a forward SOVA) in turbo code decoding. We find noticeable performance improvement for the backward SOVA when it is not terminated, which turns out to be due to a smaller reliability value, indicating that the termination conditions of the turbo encoder strongly affect the performance ...

This paper presents a cross layer iterative decoder for irregular Low-Density Parity-Check (LDPC) coded system by using Cyclic Redundancy Check (CRC) codes. The key idea of the decoder is to use the correctly decoded frame to help correcting the left erroneous ones. To accomplish this, the decoder digs the useful information between layers by using the cross layer design method and an iterative...

Most versions of the Peterson-Gorenstein-Zierler (PGZ) decoding algorithm are not true bounded distance decoding algorithms in the sense that when a received vector is not in the decoding sphere of any codeword, the algorithm does not always declare a decoding failure. For a t-error-correcting BCH code, if the received vector is at distance i, i t, from a codeword in a supercode with BCH distan...

The MPEG-4 video coding standard uses variable length codes (VLCs) to encode the indices of intra and inter macroblocks after discrete cosine transform and quantization. Although VLCs can achieve good compression, they are very sensitive to channel errors. Joint source-channel decoding (JSCD) is emerging as an efficient method for dealing with this sensitivity to channel errors. This paper prop...

The key issue of applying Turbo codes is to find an efficient implementation of turbo decoder. This paper addresses the implementation of a simplified and efficient turbo decoder in field programmable gate array (FPGA) technology. A simplified and efficient implementation of a Turbo decoder with minor performance loss has been proposed. An integer Turbo decoder based on the standard 2’s complem...

Sensory information is encoded in the response of neuronal populations. How might this information be decoded by downstream neurons? Here we analyzed the responses of simultaneously recorded barrel cortex neurons to sinusoidal vibrations of varying amplitudes preceded by three adapting stimuli of 0, 6 and 12 µm in amplitude. Using the framework of signal detection theory, we quantified the perf...

The use of block codes is a well known error-control technique for reliable transmission of digital information over noisy communication channels. However, a practically implementable softinput soft-output (SISO) decoding algorithm for block codes is still a challenging problem. This thesis examines a new decoding scheme based on the soft-output Viterbi algorithm (SOVA) applied to a sectionaliz...

As a technology to read brain states from measurable brain activities, brain decoding are widely applied in industries and medical sciences. In spite of high demands in these applications for a universal decoder that can be applied to all individuals simultaneously, large variation in brain activities across individuals has limited the scope of many studies to the development of individual-spec...

Viterbi Decoders are commonly used to decode convolutional codes in communications systems. This Viterbi Decoder is a fully parallel implementation which gives fast data throughput. The decoder is targeted for WiMAX and Wireless LAN applications. Input symbol metric pairs are decoded into output data bits by the maximum likelihood Viterbi processor core. Decoder supports both hard and soft inpu...