Results 121 to 130 of about 144,751 (159)

Distributed Source Coding Using Raptor Codes

IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, 2007
In this paper the problem of distributed source coding (DSC) of binary sources with side information at the decoder is addressed. We propose a scheme based on Raptor codes which are a new class of rateless codes. We adapt the decoding scheme to this problem by implementing the message passing strategy between the constituent decoders of Raptor codes at
M. Fresia, L. Vandendorpe
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Scalable distributed source coding

2009 IEEE International Conference on Acoustics, Speech and Signal Processing, 2009
This paper considers the problem of scalable distributed coding of correlated sources that are communicated to a central unit. The general setting is typically encountered in sensor networks. The conditions of communication channels between the source encoders and fusion center may be time-varying and it is often desirable to guarantee a base layer of ...
Ankur Saxena, Kenneth Rose
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Multilevel distributed source coding

Proceedings of IEEE International Symposium on Information Theory, 2002
Inspired by mobile satellite communication systems, we consider a source coding system which consists of multiple sources, multiple encoders, and multiple decoders. Each encoder has access to a certain subset of the sources, each decoder has access to a certain subset of the encoders, and each decoder reconstructs a certain subset of the sources almost
R.W. Yeung, null Zhen Zhang
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Symmetric Distributed Source Coding using LDPC Code

2008 IEEE International Conference on Communications, 2008
Distributed source coding is a promising enabling technology for sensor network applications. Symmetric distributed source coding can achieve the entire Slepian-Wolf rate region and offer sensor network applications a wide range of options to compress and transmit data. In this paper, we design a new symmetric distributed coding scheme that realize the
B. Bai, Y. Yang, P. Boulanger, J. Harms
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Lossy distributed source coding using LDPC codes

IEEE Communications Letters, 2009
In this paper, we propose a practical scheme for lossy distributed source coding with side information available at the decoder. Our proposed scheme is based on sending parity bits using LDPC codes. We provide the design procedure for the LDPC code that guarantees performance close to the Wyner-Ziv limit for long LDPC codes.
M. Sartipi, F. Fekri
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Video Coding Based on Distributed Source Coding

Eighth International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS '07), 2007
Distributed video coding is a new paradigm for video compression. Practical distributed video coding are promising solutions for emerging applications. Nevertheless, more study and exploration is needed. This paper proposes an application of distributed source coding for video coding.
PERRA, CRISTIAN, GIUSTO, DANIELE
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Networked Distributed Source Coding

2010
The data sensed by different sensors in a sensor network is typically correlated. A natural question is whether the data correlation can be exploited in innovative ways along with network information transfer techniques to design efficient and distributed schemes for the operation of such networks.
Shizheng Li, Aditya Ramamoorthy
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Distributed Source Coding Using Raptor Codes for Hidden Markov Sources

IEEE Transactions on Signal Processing, 2008
Interest in distributed source coding (DSC) has increased in recent years due to the development of wireless networks. In this paper we propose a solution based on a new rateless class of codes, the Raptor codes. In real applications (where the data source length and the correlation between the sources may vary), rateless codes can be naturally adapted
M. Fresia, L. Vandendorpe, H. V. Poor
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On Secure Distributed Source Coding

2007 IEEE Information Theory Workshop, 2007
Exploiting correlated observations at multiple remote nodes for generating a secret common randomness to facilitate secure communication of data between the terminals has been addressed by many authors [1][2][3]. But in many applications such as sensor networks, the correlated observations might themselves be the data that need to be communicated.
Vinod Prabhakaran, Kannan Ramchandran
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Distributed source coding using T-direct codes

Joint IST Workshop on Mobile Future, 2006 and the Symposium on Trends in Communications. SympoTIC '06., 2006
Distributed source coding is a general framework that applies to sensor networks. Recently, considerable research on the distributed source coding of correlated sources have rekindled research scientists and engineers because of its possible application to video compression.
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