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Improved modeling of the correlation between continuous-valued sources in LDPC-based DSC

Mojtaba Vaezi, Fabrice Labeau
2012 2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)  
Accurate modeling of the correlation between the sources plays a crucial role in the efficiency of distributed source coding (DSC) systems.  ...  Further, using an interleaver the data belonging to different bit-planes are shuffled to introduce randomness in the binary domain.  ...  Specifically, the Gaussian distribution and its variations such as the Gaussian Bernoulli-Gaussian (GBG) and the Gaussian-Erasure (GE) distributions are used for this purpose, particularly when evaluating  ... 
doi:10.1109/acssc.2012.6489314 dblp:conf/acssc/VaeziL12 fatcat:j7f7rt5jaza2lglsdk3xwu6eje

Slepian-Wolf Coded Nested Lattice Quantization for Wyner-Ziv Coding: High-Rate Performance Analysis and Code Design

Zhixin Liu, S. Cheng, A.D. Liveris, Zixiang Xiong
2006 IEEE Transactions on Information Theory  
coding is applied to the quantization indices of the source for the purpose of compression with side information at the decoder.  ...  This paper examines the high-rate performance of nested lattice quantizers and gives the theoretical performance for general continuous sources.  ...  Tie Liu for their constructive comments.  ... 
doi:10.1109/tit.2006.881833 fatcat:pz246ucbwbhufd47hipbscjuba

Improved Modeling of the Correlation Between Continuous-Valued Sources in LDPC-Based DSC [article]

Mojtaba Vaezi, Fabrice Labeau
2012 arXiv   pre-print
Accurate modeling of the correlation between the sources plays a crucial role in the efficiency of distributed source coding (DSC) systems.  ...  Further, using an interleaver the data belonging to different bit-planes are shuffled to introduce randomness in the binary domain.  ...  Specifically, the Gaussian distribution and its variations such as the Gaussian Bernoulli-Gaussian (GBG) and the Gaussian-Erasure (GE) distributions are used for this purpose, particularly when evaluating  ... 
arXiv:1211.2155v1 fatcat:mnf722i7bzdrxgjkn4comvvdoe

Joint Source-Channel Coding at the Application Layer for Parallel Gaussian Sources [article]

Ozgun Y. Bursalioglu, Maria Fresia, Giuseppe Caire, H. Vincent Poor
2009 arXiv   pre-print
Then, layered joint source-channel codes are constructed based on the concatenation of embedded scalar quantizers with binary rateless encoders.  ...  In this paper the multicasting of independent parallel Gaussian sources over a binary erasure broadcasted channel is considered.  ...  In this paper we extend our approach for JSCC of an independent and identically distributed (i.i.d.) Gaussian source over the BEBC proposed in [3] to the case of parallel Gaussian sources.  ... 
arXiv:0901.2396v1 fatcat:e2ass3epkzea7ow6q2kmqdo6jm

On Multiterminal Source Code Design

Yang Yang, Vladimir Stankovic, Zixiang Xiong, Wei Zhao
2008 IEEE Transactions on Information Theory  
This paper presents two practical MT coding schemes under the same general framework of Slepian-Wolf coded quantization (SWCQ) for both direct and indirect quadratic Gaussian MT source coding problems  ...  Simulation results show a gap of only 0.24-0.29 bit per sample away from the inner sum-rate bound for both direct and indirect MT coding problems.  ...  for some of the bit-planes.  ... 
doi:10.1109/tit.2008.920204 fatcat:zlu3wtcdcndxbptefh5ctus2me

Scalable Wyner-Ziv video coding with adaptive bit-plane representation

Mei Guo, Yan Lu, Feng Wu, Shipeng Li, Wen Gao, William A. Pearlman, John W. Woods, Ligang Lu
2008 Visual Communications and Image Processing 2008  
In particular, for the DCTdomain Wyner-Ziv video coding, since the distribution of DCT coefficients and the conditional distribution given side information can be modeled with symmetric Laplacian functions  ...  Scalable Wyner-Ziv video coding is desirable, especially for mobile devices with limited computational resources and bandwidth.  ...  For ideal source, the bit-plane representation can be determined with the distribution of side information and the conditional distribution of source given side information.  ... 
doi:10.1117/12.766187 fatcat:72x6kqjrlvdohhuojqrdgo2oua

Symmetric distributed multiview video coding

Baochun Bai, Yang Yang, Cheng Lei, Pierre Boulanger, Janelle Harms
2009 2009 IEEE International Conference on Acoustics, Speech and Signal Processing  
Then we propose a general architecture for symmetric distributed multiview video schemes. Our experiments show very encouraging results.  ...  In this paper, with the inspiration of previous symmetric distributed source coding schemes, we first put forward a novel syndrome-based symmetric distributed coding scheme which can achieve the whole  ...  The results are also compared with separate H.264 coding (H.264) and asymmetric Slepian-Wolf coding (ASWC) that uses LDPC codes optimized for a Gaussian Channel.  ... 
doi:10.1109/icassp.2009.4959668 dblp:conf/icassp/BaiYLBH09 fatcat:b43qqrmlojghxbwb4qoblgkrpe

Tables for practical Wyner-Ziv coding of Laplacian sources

Debargha Mukherjee
2009 2009 IEEE International Conference on Acoustics, Speech and Signal Processing  
For the Wyner-Ziv coding problem for such sources when correlated side-information is available at the decoder, the side-information is modeled as obtained by independent additive Laplacian or Gaussian  ...  Using our prior analysis of a general encoding model based on multi-level coset codes combining source and channel coding, we present comprehensive tables with optimal encoding parameters.  ...  The case m=1 and S>1, corresponds to not using any source coding bits since the least significant symbol plane is trivial, and corresponds to only using channel coded bit-planes as is generally used in  ... 
doi:10.1109/icassp.2009.4959739 dblp:conf/icassp/Mukherjee09 fatcat:kwut5lverneapohgyebztisipe

Lossy Multicasting Over Binary Symmetric Broadcast Channels

Ozgun Y. Bursalioglu, Maria Fresia, Giuseppe Caire, H. Vincent Poor
2011 IEEE Transactions on Signal Processing  
mapping of the (redundant) quantizer bit-planes onto channel codewords by using a systematic Raptor encoder.  ...  The resulting system optimization is fairly general and applies to a variety of combinations of successive refinement source codes and channel codes.  ...  Parallel Gaussian Sources with Optimal Source Coding A parallel Gaussian source [2] is formed by i.i.d. Gaussian components S (i) with elements ∼ N (0, σ 2 i ).  ... 
doi:10.1109/tsp.2011.2146780 fatcat:taek62bzbnhy5pab36co3fk7n4

Analyzing Symbol and Bit Plane-Based LDPC in Distributed Video Coding

Ronald P. Westerlaken, Stefan Borchert, Rene Klein Gunnewiek, R. L. Lagendijk
2007 2007 IEEE International Conference on Image Processing  
We argue that due to a significant complexity reduction a bit planebased coder is preferable over a symbol-based approach. Index Terms-Distributed video coding, bit plane-based, symbol-based, LDPC  ...  In this paper we analyze both a symbol and bit plane-based approach using LDPC codes.  ...  Side information Y is generated by adding Gaussian distributed random noise N with with zero mean and variance σ 2 N = 4 to X.  ... 
doi:10.1109/icip.2007.4379081 dblp:conf/icip/WesterlakenBGL07 fatcat:btik4a2k4fad3cazom2kvguk3e

Distributed Estimation and Coding: A Sequential Framework Based on a Side-Informed Decomposition

Chao Yu, Gaurav Sharma
2011 IEEE Transactions on Signal Processing  
We propose a sequential framework for the distributed multiple-sensor estimation and coding problem that decomposes the problem into a series of side-informed source coding problems and enables construction  ...  The achievable bound for our sequential framework is also shown to be close to a general nonconstructive distributed bound that does not impose the sequential constraint indicating that the sequential  ...  ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for several insightful comments and suggestions that have significantly improved the paper.  ... 
doi:10.1109/tsp.2010.2089622 fatcat:lbkpbkt5dvaoddl567i3ogns2u

Research on LDPC Coding for Free Space Optical Communication with Modified Bessel-Gaussian Beams Based on K-distribution

Jin Wang, Fujiang Zeng, Qingqing Liang, Xiaofeng Zhang, Dan Zhang
2018 MATEC Web of Conferences  
We investigate the performance of low-density parity-check (LDPC) coding for free space optical communication (FSO) with modified Bessel-Gaussian (MBG) beams based on K-distribution.  ...  Simulation results show that under weak and strong turbulence conditions, the performance of the QC-LDPC code becomes better and better as the code rate increases, and the bit error rate (BER) keeps decreasing  ...  At the end, we analyzed the performance of LDPC code in FSO. Optical intensity distribution Source intensity Initially we start with source intensity graphs.  ... 
doi:10.1051/matecconf/201817903023 fatcat:lnpdtwdatnd2thvextg3lysewq

Distributed Video Coding Using LDPC Codes for Wireless Video

P. APARNA, Sivaprakash REDDY, Sumam DAVID
2009 Wireless Sensor Network  
New video coding scheme based on the principle of distributed source coding is looked upon in this paper.  ...  Current implementation uses LDPC codes for syndrome coding.  ...  Compression is achieved by generating syndrome bits of length (n-k) for each n bits of data.  ... 
doi:10.4236/wsn.2009.14041 fatcat:znsby6ufznctthfceiwxeqpk3y

Parameter selection for Wyner-Ziv coding of Laplacian sources

Debargha Mukherjee, William A. Pearlman, John W. Woods, Ligang Lu
2008 Visual Communications and Image Processing 2008  
Further, for the channel coded bit-planes we observe that only high-rate codes are useful.  ...  WYNER-ZIV Coding, distributed coding, Laplacian sources, arithmetic coding, channel coding A large number of practical coding scenarios deal with sources such as transform coefficients that can be well  ...  GENERAL MODEL FOR SOURCE CODING WITH SIDE-INFORMATION Once X has been quantized to Q, in a regular source coder the quantization bins are just entropy coded.  ... 
doi:10.1117/12.767872 fatcat:ceompwr4o5fjrbndc3ktcpux4a

Wyner-Ziv coding based on TCQ and LDPC codes

Yang Yang, Samuel Cheng, Zixiang Xiong, Wei Zhao
2009 IEEE Transactions on Communications  
This result mirrors that of entropy-constrained TCQ in classic source coding of Gaussian sources.  ...  After TCQ of the source X, LDPC codes are used to implement Slepian-Wolf coding of the quantized source Q(X) with side information Y at the decoder.  ...  In our simulations, using a code length of 10 6 bits, the redundancy with our designed LDPC codes for Slepian-Wolf coding is less than 0.01 b/s for each bit-LLR channel (or bit plane of TCQ indices).  ... 
doi:10.1109/tcomm.2009.02.070287 fatcat:4jg3zc4iljernj6aw2dvtxx5pq
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