We address the problem of distributed source coding using a practical and constructive approach 1], referred to as Distributed source coding using syndromes (DISCUS), with applications to sensor networks. We propose low complexity encoding and decoding methods based on linear codes, to achieve all points in the achievable rate region of Slepian-Wolf 2] problem. The extension of these concepts t...

In this paper we show how ideas based on system theoretic modeling of linear behaviors may be used for decoding of linear codes. In particular we show how Sudan’s bivariate interpolation approach to list decoding of RS codes allows a system theoretic interpretation.

In this article we present an efficient approach for the implementation of optimum maximum likelihood decoding of QPSK modulated multiple-input-multiple-output data streams. The proposed method does not compromise optimality of the detection algorithm. Instead it uses the special properties of QPSK modulation together with algebraic transformations and architectural optimizations to achieve ver...

Majority-logic decoding is attractive for three reasons: (I) It can be simply implemented; (2 ) the decoding delay is short; and (3) its performance, while suboptimal, is always superior to bounded distance decoding. For these reasons, majoritylogic decodable cyclic codes are very suitable f o r error control in high speed digital data transmission systems. Among the majority-logic decodable co...

Tandem duplication is the process of inserting a copy of a segment of DNA adjacent to the original position. Motivated by applications that store data in living organisms, Jain et al. (2017) proposed the study of codes that correct tandem duplications. Known code constructions are based on irreducible words. We study efficient encoding/decoding methods for irreducible words. First, we describe ...

Variable length coding (VLC) is very suitable for regular data and efficient to compress data without any loss. VLC uses shorter bits of codewords instead of data occurring frequently, but uses the longer bits of codewords instead of data occurring infrequently. It is used in MPEG – 1/2/4 and H.26X (video and image compression standards). The entropy decoder in MPEG-4 AVC/H.264 baseline standar...

This paper presents an efficient MAP estimator for the joint source-channel decoding of data encoded with a context adaptive binary arithmetic coder (CABAC). The decoding process is compatible with realistic implementations of CABAC in standards like H.264, i.e., handling adaptive probabilities, context modeling and integer arithmetic coding. Soft decoding is obtained using an improved sequenti...

MAP04T Features 16 state soft–in–soft–out (SISO) maximum a posteriori (MAP) triple interleaved error control decoder and systematic recursive convolutional encoder Up to 95 Mbit/s decoding speed Rate 1/2, 1/3, or 1/4 with optional punctured inputs 6–bit received data, 8–bit soft–in and soft–out data for information and parity bits for all rates 8–bit branch metric inputs for rate 1/2 Optional c...

Brain Computer Interface (BCI) can help patients of neuromuscular diseases restore parts of the movement and communication abilities that they have lost. Most of BCIs rely on mapping brain activities to device instructions, but limited number of brain activities decides the limited abilities of BCIs. To deal with the problem of limited ablility of BCI, this paper verified the feasibility of con...

Ambisonics, a sound field synthesis and reproduction technique, has shown promising results in conveying three-dimensional spatialized sound. Ambisonic encodings directly describe the spatial properties of sound fields without reference to the reproduction system. Precise regeneration of a sound field requires a large number of loudspeakers arranged so as to adequately sample all directions; th...