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Efficient error correction solutions for OFDM based digital video

Publications associées (331)

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Advanced OFDM systems for terrestrial multimedia links

Renzo Posega

Recently, there has been considerable discussion about new wireless technologies and standards able to achieve high data rates. Due to the recent advances of digital signal processing and Very Large Scale Integration (VLSI) technologies, the initial obstac ...

EPFL2005

Effect of Interfering Users on the Modulation Order and Code Rate for UWB Impulse-Radio Bit-Interleaved Coded M-ary PPM

Jean-Yves Le Boudec, Ruben Merz

We consider the impact of multi-user interference on a bit-interleaved coded-modulation system with M-ary PPM (BIC M-ary PPM) in an impulse-radio ultra-wideband physical layer. In a realistic scenario such as an ad hoc network, the interference is inherent ...

2005

Wireless Image Transmission Using Turbo Codes and Optimal Unequal Error Protection

Nikolaos Thomos

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

MIMO OFDM receivers for Systems with IQ imbalances

Ali H. Sayed

Orthogonal frequency division multiplexing (OFDM) is a widely recognized modulation scheme for high data rate communications. However, the implementation of OFDM-based systems suffers from in-phase and quadrature-phase (IQ) imbalances in the front-end anal ...

IEEE2005

Joint source-channel coding with feedback

Communications is about conveying information from one point to another subject to certain performance constraints. The information is assumed to be generated by a source and may, for example, represent a voice waveform, the reading of a thermal sensor, or ...

EPFL2005

Unequal Error Protection of Atomic Image Streams

Pascal Frossard, Pierre Vandergheynst

This paper presents an unequal error protection scheme for atomic image bitstreams. An atomic stream is the encoded version of a digital image, which is represented as a sum of bi-dimensional functions, as typically generated by Matching Pursuit encoders. ...

2005

A Joint PHY/MAC Architecture for Low-Radiated Power TH-UWB Wireless Ad-Hoc Networks

Jean-Yves Le Boudec, Ruben Merz, Jörg Widmer

Due to environmental concerns and strict constraints on interference imposed on other networks, the radiated power of emerging pervasive wireless networks needs to be strictly limited, yet without sacrificing acceptable data rates. Pulsed Time-Hopping Ultr ...

2005

LDPC codes for fading Gaussian broadcast channels

Peter Allan Berlin, Daniela Tuninetti

In this work, we study coding over a class of two-user broadcast channels (BCs) with additive white Gaussian noise and multiplicative fading known at the receivers only. Joint decoding of low-density parity-check (LDPC) codes is analyzed. The message updat ...

2005

Cooperative strategies and capacity theorems for relay networks

Michael Christoph Gastpar

Coding strategies that exploit node cooperation are developed for relay networks. Two basic schemes are studied: the relays decode-and-forward the source message to the destination, or they compress-and-forward their channel outputs to the destination. The ...

2005

Cooperative strategies and capacity theorems for relay networks

Michael Christoph Gastpar

Institute of Electrical and Electronics Engineers2005