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Dissertations / Theses on the topic 'Additive Gaussian noise'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Shu, Li 1970. "A power interval perspective on additive white Gaussian noise (AWGN) channels." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9118.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (leaves 215-216).<br>We present a new perspective on additive white Gaussian noise (AWGN) channels that separates user and channel attributes. Following this separation, various questions concerning achievability and successive decoding can be reformulated as properties of the set of user attributes, which can be determined independently of the actual channel noise. To obtain these properties directly, we introduce a graphical framework calle

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2

Chen, Brian. "Efficient communication over additive white Gaussian noise and intersymbol interference channels using chaotic sequences." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/40151.

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Huang, Weizheng. "Investigation on Digital Fountain Codes over Erasure Channels and Additive White Gaussian Noise Channels." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1336067205.

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4

Ni, Li. "Non-equiprobable multi-level coding for the additive white Gaussian noise channel with Tikhonov phase error." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Dissertations/Fall2005/l%5Fni%5F120905.pdf.

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5

DeRieux, David A. "Investigation of spectral-based techniques for classification of wideband transient signals in additive white Gaussian noise." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA282954.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, March 1994.<br>Thesis advisor(s): Ralph Hippenstiel, Monique P. Fargues. "March 1994." Includes bibliographical references. Also available online.

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Ng, Jimmy Hon-yuen. "Estimation of error rates and fade distributions on a Rayleigh fading channel with additive white Gaussian noise." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26318.

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Several characteristics of the Rayleigh fading channel are examined. A digital Rayleigh fading simulator is used to generate the (fading) signal envelope from which various statistics are derived. Based on the simulation results, a simple model is proposed in order to estimate the block error rate of a block of N data bits transmitted over the Rayleigh fading channel in the presence of additive white Gaussian noise. This model gives an average estimation error of about 4 % over the range of blocksizes N = 63, 127, 255, 511, 1023, 2047 (bits), average signal-to-noise ratios 70 = 5 to 35 (dB) a

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7

Argyriou, Andreas. "Probability of symbol error for coherent and non-coherent detection of M-ary frequency-shift keyed (MFSK) signals affected by co-channel interference and additive white Gaussian noise (AWGN) in a fading channel." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA376826.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, March 2000.<br>Thesis advisor(s): Lebaric, Jovan; Robertson, Clark. Includes bibliographical references (p. 289). Also available online.

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Fougias, Nikolaos. "High speed network access to the last-mile using fixed broadband wireless." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FFougias.pdf.

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Thesis (M.S. in Information Technology Management and M.S. in Computer Science)--Naval Postgraduate School, March 2004.<br>Thesis advisor(s): Burt Lundy. Includes bibliographical references (p. 99-100). Also available online.

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9

Erdogan, Ahmet Yasin. "Analysis of the effects of phase noise and frequency offset in orthogonal frequency division multiplexing (OFDM) systems." Thesis, Monterey California. Naval Postgraduate School, 2004. http://hdl.handle.net/10945/1712.

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Approved for public release, distribution is unlimited<br>Orthogonal frequency division multiplexing (OFDM) is being successfully used in numerous applications. It was chosen for IEEE 802.11a wireless local area network (WLAN) standard, and it is being considered for the fourthgeneration mobile communication systems. Along with its many attractive features, OFDM has some principal drawbacks. Sensitivity to frequency errors is the most dominant of these drawbacks. In this thesis, the frequency offset and phase noise effects on OFDM based communication systems are investigated under a variety of

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Chen, Jui-Chun. "A virtual RSNS direction finding antenna system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Dec%5FChen%5FJui.pdf.

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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, Dec. 2004.<br>Thesis Advisor(s): David C. Jenn, Phillip E. Pace. Includes bibliographical references (p. 69-70). Also available online.

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11

Čermák, Josef. "Modelování rušení pro xDSL." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217281.

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This work is focused on the subject of the interference modelling for xDSL technologies. First, the xDSL technologies are explained. Following is the presentation and description of the different kinds of the xDSL technologies. The next part deals with the basic parameters of metallic cable lines – especially the primary and secondary parameters. Nowadays wider bandwidths are used for the achievement of higher data transmission rates. During a higher frequency signal transmission a more intensive line attenuation appears. To identify the transfer characteristics of the lines while using an xDS

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Novotný, František. "Analýza a modelování přeslechů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220322.

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The thesis concerns the problem of interference modelling for xDSL technologies and Ethernet. The introduction describes the origin of crosstalk, that arise during the operation of the systems and the physical properties of the lines, therefore, the next section describes the properties of the primary and secondary parameters of the homogenous line and their modelling. In order to achieve higher data rates on the metallic line, systems with larger frequency spectrum are applied, resulting in a greater attenuation of the line. This issue and the characteristics determination of the transmission

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13

Barkat, Braham. "Design, estimation and performance of time-frequency distributions." Thesis, Queensland University of Technology, 2000.

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14

Shang, Lei, and lei shang@ieee org. "Modelling of Mobile Fading Channels with Fading Mitigation Techniques." RMIT University. Electrical and Computer Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20061222.113303.

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This thesis aims to contribute to the developments of wireless communication systems. The work generally consists of three parts: the first part is a discussion on general digital communication systems, the second part focuses on wireless channel modelling and fading mitigation techniques, and in the third part we discuss the possible application of advanced digital signal processing, especially time-frequency representation and blind source separation, to wireless communication systems. The first part considers general digital communication systems which will be incorporated i

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15

Sucic, Victor. "Parameters selection for optimising time-frequency distributions and measurements of time-frequency characteristics of nonstationary signals." Thesis, Queensland University of Technology, 2004. https://eprints.qut.edu.au/15834/1/Victor_Sucic_Thesis.pdf.

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The quadratic class of time-frequency distributions (TFDs) forms a set of tools which allow to effectively extract important information from a nonstationary signal. To determine which TFD best represents the given signal, it is a common practice to visually compare different TFDs' time-frequency plots, and select as best the TFD with the most appealing plot. This visual comparison is not only subjective, but also difficult and unreliable especially when signal components are closely-spaced in the time-frequency plane. To objectively compare TFDs, a quantitative performance measure should be u

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Sucic, Victor. "Parameters Selection for Optimising Time-Frequency Distributions and Measurements of Time-Frequency Characteristics of Nonstationary Signals." Queensland University of Technology, 2004. http://eprints.qut.edu.au/15834/.

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The quadratic class of time-frequency distributions (TFDs) forms a set of tools which allow to effectively extract important information from a nonstationary signal. To determine which TFD best represents the given signal, it is a common practice to visually compare different TFDs' time-frequency plots, and select as best the TFD with the most appealing plot. This visual comparison is not only subjective, but also difficult and unreliable especially when signal components are closely-spaced in the time-frequency plane. To objectively compare TFDs, a quantitative performance measure should be u

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17

Hussain, Zahir M. "Adaptive instantaneous frequency estimation: Techniques and algorithms." Thesis, Queensland University of Technology, 2002. https://eprints.qut.edu.au/36137/7/36137_Digitised%20Thesis.pdf.

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This thesis deals with the problem of the instantaneous frequency (IF) estimation of sinusoidal signals. This topic plays significant role in signal processing and communications. Depending on the type of the signal, two major approaches are considered. For IF estimation of single-tone or digitally-modulated sinusoidal signals (like frequency shift keying signals) the approach of digital phase-locked loops (DPLLs) is considered, and this is Part-I of this thesis. For FM signals the approach of time-frequency analysis is considered, and this is Part-II of the thesis. In part-I we have uti

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18

Alfadly, Modar. "Analytic Treatment of Deep Neural Networks Under Additive Gaussian Noise." Thesis, 2018. http://hdl.handle.net/10754/627554.

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Despite the impressive performance of deep neural networks (DNNs) on numerous vision tasks, they still exhibit yet-to-understand uncouth behaviours. One puzzling behaviour is the reaction of DNNs to various noise attacks, where it has been shown that there exist small adversarial noise that can result in a severe degradation in the performance of DNNs. To rigorously treat this, we derive exact analytic expressions for the first and second moments (mean and variance) of a small piecewise linear (PL) network with a single rectified linear unit (ReLU) layer subject to general Gaussian input. We e

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19

Mathur, Aashish. "Performance evaluation of PLC systems under non- gaussian additive noise." Thesis, 2016. http://localhost:8080/xmlui/handle/12345678/7183.

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20

Lam, Carson Y. H. "Multiple copy combining schemes for the additive white Gaussian noise channel." Thesis, 1992. http://hdl.handle.net/2429/3366.

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A generalized version of a memory automatic repeat request (ARQ) scheme [15-221 using hard, soft, and completely soft detection is examined. The communication channel is modeled as an additive white Gaussian noise (AWGN) channel. The following six combining schemes are considered. In Scheme 1, error detection is performed on each of the n received copies. In Scheme 2, all n copies are combined and error detection is performed on the resulting packet. Scheme 3 uses Scheme 1 followed by Scheme 2 (if decoding using Scheme 1 is not successful). In Scheme 4, each incoming packet is combined

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21

Ying-Chun, Lai. "A High Performance Additive White Gaussian Noise Generator Using the Wallace Method." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-0109200613413708.

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Lai, Ying-Chun, and 賴穎群. "A High Performance Additive White Gaussian Noise Generator Using the Wallace Method." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/08665437379888732157.

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碩士<br>國立清華大學<br>電機工程學系<br>94<br>Combining the Box-Muller method, Central Limit Theorem, and the Wallace method, a hardware white Gaussian noise generator (WGNG) is proposed to simulate the noise effect appeared in the communication channel and is synthesized in a 0.18um CMOS process. Passing two statistical tests of chi-square test and Kolmogorov-Smirnov (K-S) test, the proposed noise generator can generate high-quality 666.667 million Gaussian random variables per second. It is different from the existing methods that require complex calculations. The proposed design only requires additions,

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23

"Efficient communication over additive white Gaussian noise and intersymbol interference channels using chaotic sequences." Research Laboratory of Electronics, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/4155.

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Brian Chen.<br>Also issued as Thesis (M. S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.<br>Includes bibliographical references (p. 103).<br>Supported in part by the Dept. of the Navy, Office of the Chief Naval Research. N0014-93-1-0686 Supported in part by the Advanced Research Projects Agency's RASSP program. N00014-95-1-0834 Supported in part by a National Defence Science and Engineering Graduate Fellowship.

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24

Chang, Hui-Ting, and 張惠婷. "Molecular Communication in Fluid Media: Bounds on the Capacity of the Additive Inverse Gaussian Noise Channel." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/59694660019598126650.

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碩士<br>國立交通大學<br>電信工程研究所<br>101<br>In this thesis a very recent and new channel model is investigated that describes communication based on the exchange of chemical molecules in a liquid medium with constant drift. They travel from the transmitter to the receiver at two ends of a one-dimensional axis. A typical application of such communication are nano- devices inside a blood vessel communicating with each other. In this case, we no longer transmit our signal via electromegnetic waves, but we put our information on the emission time of the molecules. Once a molecule is emitted in the fluid med

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Lee, Ting-Hsuan, and 李庭萱. "Molecular Communication in a Liquid: Bounds on the Capacity of the Additive Inverse Gaussian Noise Channel with Average and Peak Delay Constraints." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/10218580962387516954.

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碩士<br>國立交通大學<br>電信工程研究所<br>101<br>In this thesis a very recent and new channel model is investigated that describes communication based on the exchange of chemical molecules in a liquid medium with constant drift. The molecules travel from the transmitter to the receiver at two ends of a one-dimensional axis. A typical application of such communication are nano-devices inside a blood vessel communicating with each other. In this case, we no longer transmit our signal via electromagnetic waves, but we encode our information into the emission time of the molecules. Once a molecule is emitted in

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26

Σινάνης, Σπύρος. "Εκτίμηση συχνότητας απλών ημιτονοειδών σημάτων υπό την παρουσία λευκού γκαουσιανού θορύβου". Thesis, 2012. http://hdl.handle.net/10889/5391.

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Στην παρούσα διπλωματική εργασία επιχειρείται η ανάλυση και η εκτίμηση της συχνότητας απλών ημιτονοειδών σημάτων υπό την παρουσία λευκού Γκαουσιανού θορύβου (AWGN).Η εκτίμηση παραμέτρων απλών ημιτονοειδών σημάτων υπό την παρουσία προσθετικού Γκαουσιανού θορύβου αποτελεί ένα κλασσικό πρόβλημα και σημαντικό αντικείμενο μελέτης εξαιτίας της πληθώρας των εφαρμογών που έχει στην θεωρία ελέγχου, στην επεξεργασία σημάτων, στις ψηφιακές επικοινωνίες, στην βιοϊατρική τεχνολογία κ.α.Η εκτίμηση της συχνότητας είναι συνήθως το θέμα ‘ζωτικής σημασίας’ του προβλήματος για δύο σημα

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Deshpande, Naveen. "Constellation Constrained Capacity For Two-User Broadcast Channels." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/1281.

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A Broadcast Channel is a communication path between a single source and two or more receivers or users. The source intends to communicate independent information to the users. A particular case of interest is the Gaussian Broadcast Channel (GBC) where the noise at each user is additive white Gaussian noise (AWGN). The capacity region of GBC is well known and the input to the channel is distributed as Gaussian. The capacity region of another special case of GBC namely Fading Broadcast Channel (FBC)was given in [Li and Goldsmith, 2001]and was shown that superposition of Gaussian codes is optimal

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Deshpande, Naveen. "Constellation Constrained Capacity For Two-User Broadcast Channels." Thesis, 2010. http://etd.iisc.ernet.in/handle/2005/1281.

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A Broadcast Channel is a communication path between a single source and two or more receivers or users. The source intends to communicate independent information to the users. A particular case of interest is the Gaussian Broadcast Channel (GBC) where the noise at each user is additive white Gaussian noise (AWGN). The capacity region of GBC is well known and the input to the channel is distributed as Gaussian. The capacity region of another special case of GBC namely Fading Broadcast Channel (FBC)was given in [Li and Goldsmith, 2001]and was shown that superposition of Gaussian codes is optimal

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29

Oliveira, João Manuel Barbosa de. "Receiver design for nonlinearly distorted OFDM : signals applications in radio-over-fiber systems." Doctoral thesis, 2011. http://hdl.handle.net/10216/63386.

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Oliveira, João Manuel Barbosa de. "Receiver design for nonlinearly distorted OFDM : signals applications in radio-over-fiber systems." Tese, 2011. http://hdl.handle.net/10216/63386.

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31

Antony, Daniel Sanju. "Performance Analysis of Non Local Means Algorithm using Hardware Accelerators." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2932.

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Image De-noising forms an integral part of image processing. It is used as a standalone algorithm for improving the quality of the image obtained through camera as well as a starting stage for image processing applications like face recognition, super resolution etc. Non Local Means (NL-Means) and Bilateral Filter are two computationally complex de-noising algorithms which could provide good de-noising results. Due to its computational complexity, the real time applications associated with these letters are limited. In this thesis, we propose the use of hardware accelerators such as GPU (Grap

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Antony, Daniel Sanju. "Performance Analysis of Non Local Means Algorithm using Hardware Accelerators." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2932.

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Image De-noising forms an integral part of image processing. It is used as a standalone algorithm for improving the quality of the image obtained through camera as well as a starting stage for image processing applications like face recognition, super resolution etc. Non Local Means (NL-Means) and Bilateral Filter are two computationally complex de-noising algorithms which could provide good de-noising results. Due to its computational complexity, the real time applications associated with these letters are limited. In this thesis, we propose the use of hardware accelerators such as GPU (Grap

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33

Tseng, Shao-Yu, and 曾紹瑜. "Equalization of the Correlated Additive Gaussian Noises on the Wireless Links of Sensor Networks." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/50206154450560347813.

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碩士<br>國立交通大學<br>電信工程系所<br>94<br>Distributed classification fusion using error correcting codes(DCFECC) has recently been proposed for wireless sensor networks operating in a harsh environment. It has been shown to provide a considerable fault-tolerance capability against unexpected sensor faults under limited energy support. In this thesis, we extend the DCFECC approach by relaxing the assumption of independently and identically distributed wireless link noises to correlated ones. Through channel estimation and equalization, we obtain a fault-tolerant minimum Euclidean distance (MED) fusion ru

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Dang, Rajdeep Singh. "Experimental Studies On A New Class Of Combinatorial LDPC Codes." Thesis, 2007. https://etd.iisc.ac.in/handle/2005/523.

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We implement a package for the construction of a new class of Low Density Parity Check (LDPC) codes based on a new random high girth graph construction technique, and study the performance of the codes so constructed on both the Additive White Gaussian Noise (AWGN) channel as well as the Binary Erasure Channel (BEC). Our codes are “near regular”, meaning thereby that the the left degree of any node in the Tanner graph constructed varies by at most 1 from the average left degree and so also the right degree. The simulations for rate half codes indicate that the codes perform better than both th

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Dang, Rajdeep Singh. "Experimental Studies On A New Class Of Combinatorial LDPC Codes." Thesis, 2007. http://hdl.handle.net/2005/523.

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We implement a package for the construction of a new class of Low Density Parity Check (LDPC) codes based on a new random high girth graph construction technique, and study the performance of the codes so constructed on both the Additive White Gaussian Noise (AWGN) channel as well as the Binary Erasure Channel (BEC). Our codes are “near regular”, meaning thereby that the the left degree of any node in the Tanner graph constructed varies by at most 1 from the average left degree and so also the right degree. The simulations for rate half codes indicate that the codes perform better than both th

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