Image Transmission Using LDPC Log Domain Iterative Decoding Method
Journal Title: International journal of Emerging Trends in Science and Technology - Year 2014, Vol 1, Issue 5
Abstract
Most source coding standards (voice, audio, image and video) use Variable-Length Codes (VLCs) for compression. However, the VLC decoder is very sensitive to transmission errors in the compressed bit-stream. Previous contributions, using a trellis description of the VLC codeword’s to perform soft decoding, have been proposed. But the complexity of the trellis technique becomes intractable. In this paper, we propose a soft-input VLC decoding method which is not trellis based. Performance in the case of transmission over an Additive White Gaussian Noise (AWGN) channel is evaluated. Simulation results show that the proposed decoding algorithm exhibit very low complexity and also bit error rate (BER) at output of channel decoder decreases with increase in SNR. We consider the serial concatenation of a VLC with the channel code and perform iterative decoding. Results show that, when concatenated with Low Density Parity Check (LDPC) codes, iterative decoding provides remarkable error correction performance. Experimental results indicate that the proposed method requires less iteration and improves overall system performance
Authors and Affiliations
Hazeena Hussain
Keywords
Related Articles
- EP ID EP220556
- DOI -
- Views 139
- Downloads 0
Impact of Green Marketing on Customer Buying with Special Reference to FMCG Sector
Fast moving consumer goods is the fourth largest sector which fuels the Indian economy to a great extent. There has been tremendous growth in the past few decades. The overall growth of FMCG industry increased to 9.4% gr...
Secure Mining of Generalized Association Rules from Horizontally Distributed Databases
We consider the problem of secure mining of generalized association rules from horizontally distributed databases. Given a large horizontally distributed database of transactions, where each transaction consists of a set...
Seismic Analysis of Honeycomb Structure over Conventional Structure with comparative Study by using STAAD PRO
All over the world new innovations have been done by researchers so as to minimize the structural and environmental damage to the society. It has became a new trend to construct tall buildings with innovative design, Bio...
Application of Molecular Biology in the Wastewater Treatment
Due to the huge structural complexity of granular sludge and the many trophic interactions among the microbial populations required to transform complex organic matter into biogas (CO2 and CH4), the microbial ecology of...
Content Based Image Retrieval Using Local Directional Pattern (LDP) Image Descriptor
We present an approach for image retrieval using Local Directional Pattern (LDP) and efficient on-line learning. This paper presents an image retrieval using novel local feature descriptor, the Local Directional Pattern...