Concept

Cyclic code

Related publications (107)

Wireless Image Transmission Using Turbo Codes and Optimal Unequal Error Protection

A novel image transmission scheme is proposed for the communication of SPIHT image streams over wireless channels. The proposed scheme employs turbo codes and Reed-Solomon codes in order to deal effectively with burst errors. An algorithm for the optimal u ...

Institute of Electrical and Electronics Engineers2005

Multiuser Interference during Synchronization Phase in UWB Impulse Radio

Pierre-André Farine, Cyril Botteron

This paper analyzes the receiver's ability to differentiate between multiple users in ultra-wideband (UWB) impulse radio (IR) during the initial synchronization phase after a cold start, i.e., when the receiver is not yet synchronized with the user of inte ...

2005

Exact Sampling Results for Some Classes of Parametric Non-Bandlimited 2-D Signals

Martin Vetterli, Irena Maravic

We present sampling results for certain classes of two-dimensional signals that are not bandlimited, but have a parametric representation with a finite number of degrees of freedom. While there are many such parametric signals, it is often difficult to pro ...

2004

Asymptotic and finite-length analysis of low-density parity-check codes

Changyan Di

This thesis addresses the topic of Low-Density Parity-Check (LDPC) code analysis, both asymptotically and for finite block lengths. Since in general it is a difficult problem to analyze individual code instances, ensemble averages are studied by following ...

EPFL2004

To code or not to code: lossy source-channel communication revisited

Martin Vetterli, Michael Christoph Gastpar, Bixio Rimoldi

What makes a source–channel communication system optimal? It is shown that in order to achieve an optimal cost–distortion tradeoff, the source and the channel have to be matched in a probabilistic sense. The match (or lack of it) involves the source distri ...

2003

The EGNOS Integrity Concept: Evaluation of the Ionospheric Corrections

Within the validation work of EGNOS for civil aviation, it is interesting to analyze the transmitted corrections individually. In this paper, the ionospheric model of EGNOS is compared to the one determined by an independent organization (CODE). The contin ...

2003

Efficient list decoding of Reed-Solomon codes for message recovery in the presence of high noise levels

Mohammad Amin Shokrollahi

A method and apparatus for efficient list decoding of Reed-Solomon error correction codes. A polynomial for a predetermined target list size combining points of an error code applied to a message and points of a received word is determined for a k dimensio ...

2003

Low-delay low-complexity error-correcting codes on sparse graphs

Xiao-Yu Hu

This dissertation presents a systematic exposition on finite-block-length coding theory and practice. We begin with the task of identifying the maximum achievable rates over noisy, finite-block-length constrained channels, referred to as (ε, n)-capacity Cε ...

EPFL2003

Finite-length analysis of various low-density parity-check ensembles for the binary erasure channel

Rüdiger Urbanke, Mohammad Amin Shokrollahi

We investigate the average erasure probability of the belief propagation algorithm over the binary erasure channel (BEC) for various finite-length low- density parity-check (LDPC) ensembles. In particular, we give tight upper bounds on the "error floor", i ...

2002

Optimal Filter Banks for Multiple Description Coding: Analysis and Synthesis

Martin Vetterli, Pier Luigi Dragotti

Multiple description (MD) coding is a source coding technique for information transmission over unreliable networks. In MD coding, the coder generates several different descriptions of the same signal and the decoder can produce a useful reconstruction of ...

Institute of Electrical and Electronics Engineers2002

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