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005			20260818090240.0
008			220114s2007 th uu m rtt 0| a1eng d
035			_a.b1237653x
099		9	_aAIT Thesis no.TC-07-11
100	1		_aJoshi, Satya K.
245	1	0	_aDesign of LDPC based DVC codec for a noisy channel
260			_aPathum Thani, Thailand : _bAsian Institute of Technology, _c2007
300			_a53 leaves : _bill.
490	1		_aThesis ; _vno. TC-07-11
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Telecommunications
502			_aThesis (M.Eng.) - Asian Institute of Technology, 2007
520			_aDistributed Video Coding (DVC) is a new video coding paradigm based on two key information theories; popularly known as Slepian- Wolf theorem (1973) and Wyner- Ziv theorem (1976) in the literature. These theorems enable a low complexity encoder by shifting complexity of the encoder to the decoder. This reduction in complexity, however, should not compromise the rate distortion function as compared to the tra- ditional video encoding system. In this thesis work, we use the Low Density Parity Check (LDPC) codec in DVC. Although noise is inherent in any natural channel, in the literature an error free channel has been considered. Here, we consider the AWGN channel for the transmission of parity bits, and Laplacian and AWGN noise models for (SI) Side Information. The main contribution of this thesis work is to design the LDPC decoder to handle these two independent noise distributions. It is noted that in Side Information, the number of bits in error are different for different bitplanes; less significant bitplanes have more error bits than most significant bitplanes. We propose to use a burst channel model for Side Information, and the performance is compared using Lapalcian and AWGN noise models. From simulation results it is seen that the burst channel model for Side Information has a better performance than the flat channel model.
650		0	_aCoding theory
650		0	_aSignal processing
650		0	_aInformation theory
650		0	_aError-correcting codes (Information theory)
700	1		_aRajatheva, R.M.A.P, _eExamination Committee
700	0		_aTeerapat Sanguankotchakorn, _eExamination Committee
700	0		_aPoompat Saengudomlert, _eExamination Committee
710	2		_aThe Government of France, _eScholarship Donor
710	2		_aAsian Institute of Technology Fellowship, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. TC-07-11
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