Tesi: "Error Protection"

7

Yu, Kevin C. (Kevin Cherng-Kai). "Unequal error protection codes based on trellis shaping." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36034.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Iqbal, Muhammad Imran. "On Perception-Based Error Protection for Mobile Multimedia." Doctoral thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00530.

Testo completo

Abstract (sommario):

Representation of multimedia requires large amounts of data. Therefore, multimedia source signals are compressed to reduce the data rate that would otherwise be required for its transmission. However, compression renders multimedia data more vulnerable to transmission errors. Therefore, error protection is needed when transmitting multimedia to mobile users over wireless channels. As channel coding adds parity symbols to the data for error protection, which in turn increases transmission data rate, efficient utilization of this added parity budget becomes a key for insuring quality of service

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Bredtmann, Oliver [Verfasser]. "Unequal Error Protection Coding of Quantized Data / Oliver Bredtmann." Aachen : Shaker, 2011. http://d-nb.info/1098039947/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Sankaranarayanan, Sundararajan, Aleksandar Cvetković, and Bane Vasić. "UNEQUAL ERROR PROTECTION FOR JOINT SOURCE-CHANNEL CODING SCHEMES." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/607481.

Testo completo

Abstract (sommario):

International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada A joint source-channel coding scheme (JSCCS) used in applications, like sending images, voice, music etc. over internet/ wireless networks, involves source coding to compress the information and channel coding to detect/ correct errors, introduced by the channel. In this paper, we investigate the unequal error protection (UEP) capability of a class of low-density parity-check (LDPC) codes in a JSCCS. This class of irregular LDPC codes is constructed from cyclic di

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Deetzen, Neele von [Verfasser]. "Modern Coding Schemes for Unequal Error Protection / Neele von Deetzen." Aachen : Shaker, 2009. http://d-nb.info/1126378380/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Boyle, Kevin P. (Kevin Patrick). "Rateless and rateless unequal error protection codes for Gaussian channels." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42251.

Testo completo

Abstract (sommario):

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007. Includes bibliographical references (p. 141-143). In this thesis we examine two different rateless codes and create a rateless unequal error protection code, all for the additive white Gaussian noise (AWGN) channel. The two rateless codes are examined through both analysis and simulation with the hope of developing a better understanding of how the codes will perform and pushing the codes further toward implementation. After analyzing and simulating the rateless codes by them

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Hassan, Khaled Shawky [Verfasser]. "Unequal Error Protection Adaptive Modulation in Multicarrier Systems / Khaled Shawky Hassan." Aachen : Shaker, 2011. http://d-nb.info/1071529242/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Charfi, Youssef. "Efficient error protection for image and video transmission over noisy channels." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971463328.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Zhu, Chuan. "Joint source-channel decoding and unequal error protection aided video transmission." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/400650/.

Testo completo

Abstract (sommario):

Shannon’s source and channel-coding separation theorem has been the basic philosophy followed by most state-of-the-art wireless transceivers, where all source signals are assumed to have the same importance and are protected equally by the channel encoder. However, due to its assumption of using idealized Gaussian channels, potentially infinite encoding/decoding delay as well as complexity, Shannon’s source and channel-coding theorem is not strictly applicable in practical wireless scenarios. This is because it is almost impossible to remove all the redundancy of the video source, therefore th

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Natu, Ambarish Shrikrishna Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Error resilience in JPEG2000." Awarded by:University of New South Wales. Electrical Engineering and Telecommunications, 2003. http://handle.unsw.edu.au/1959.4/18835.

Testo completo

Abstract (sommario):

The rapid growth of wireless communication and widespread access to information has resulted in a strong demand for robust transmission of compressed images over wireless channels. The challenge of robust transmission is to protect the compressed image data against loss, in such a way as to maximize the received image quality. This thesis addresses this problem and provides an investigation of a forward error correction (FEC) technique that has been evaluated in the context of the emerging JPEG2000 standard. Not much effort has been made in the JPEG2000 project regarding error resilience. Th

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Zhou, Xiang-Yu (Xiang-Yu Leo). "Error-suppression by energy-gap protection for quantum computation in open systems." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/92671.

Testo completo

Abstract (sommario):

Thesis: S.B., Massachusetts Institute of Technology, Department of Physics, 2014. Missing pages 43 and 44. Cataloged from PDF version of thesis. Includes bibliographical references (pages 57-58). Adiabatic Quantum Computation, while attractive due to its "hands-off" approach and intrinsic tolerance of noise, has not been shown to be fully fault-tolerant in a satisfying manner. The protection of the evolution from noise and decoherence through the use of an energy penalty, recently proposed as a method to suppress error in adiabatic algorithms, is also appealing due to its passiveness.

Gli stili APA, Harvard, Vancouver, ISO e altri

18

Tumula, V. K. Chaitanya. "HARQ Systems: Resource Allocation, Feedback Error Protection, and Bits-to-Symbol Mappings." Doctoral thesis, Linköpings universitet, Kommunikationssystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96021.

Testo completo

Abstract (sommario):

Reliability of data transmission is a fundamental problem in wireless communications. Fading in wireless channels causes the signal strength to vary at the receiver and this results in loss of data packets. To improve the reliability, automatic repeat request (ARQ) schemes were introduced. However these ARQ schemes suffer from a reduction in the throughput. To address the throughput reduction, conventional ARQ schemes were combined with forward error correction (FEC) schemes to develop hybrid-ARQ (HARQ) schemes. For improving the reliability of data transmission, HARQ schemes are included in t

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Sandberg, Sara. "Low-density parity-check codes : unequal error protection and reduction of clipping effects /." Luleå, 2009. http://pure.ltu.se/ws/fbspretrieve/2546109.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Rahnavard, Nazanin. "Coding for wireless ad-hoc and sensor networks unequal error protection and efficient data broadcasting /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/26673.

Testo completo

Abstract (sommario):

Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008. Committee Chair: Professor Faramarz Fekri; Committee Member: Professor Christopher Heil; Committee Member: Professor Ian F. Akyildiz; Committee Member: Professor James H. McClellan; Committee Member: Professor Steven W. McLaughlin. Part of the SMARTech Electronic Thesis and Dissertation Collection.

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Philippot, Luc. "Parameter estimation and error estimation for line fault location and distance protection in power transmission systems." Doctoral thesis, Universite Libre de Bruxelles, 1995. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212533.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Nazer, Ali. "Joint source-channel coding and unequal error protection of CELP 1016 encoded speech over very noisy channels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0003/MQ28243.pdf.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Lefèvre, Pascal. "Protection des contenus multimédias pour la certification des données." Thesis, Poitiers, 2018. http://www.theses.fr/2018POIT2273/document.

Testo completo

Abstract (sommario):

Depuis plus de vingt ans, l'accès à la technologie est devenu très facile étant donné son omniprésence dans le quotidien de chacun et son faible coût. Cet accès aux technologies du numérique permet à toute personne équipée d'un ordinateur ou d'un smartphone de visualiser et de modifier des contenus digitaux. Avec les progrès en matière de stockage en ligne, la quantité de contenus digitaux tels que le son, l'image ou la vidéo sur internet a explosé et continue d'augmenter.Savoir identifier la source d'une image et certifier si celle-ci a été modifiée ou non sont des informations nécessaires po

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Karaer, Arzu. "Optimum bit-by-bit power allocation for minimum distortion transmission." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4760.

Testo completo

Abstract (sommario):

In this thesis, bit-by-bit power allocation in order to minimize mean-squared error (MSE) distortion of a basic communication system is studied. This communication system consists of a quantizer. There may or may not be a channel encoder and a Binary Phase Shift Keying (BPSK) modulator. In the quantizer, natural binary mapping is made. First, the case where there is no channel coding is considered. In the uncoded case, hard decision decoding is done at the receiver. It is seen that errors that occur in the more significant information bits contribute more to the distortion than less significan

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Wu, Zhenyu, Ali Bilgin, and Michael W. Marcellin. "JOINT SOURCE/CHANNEL CODING FOR TRANSMISSION OF MULTIPLE SOURCES." International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604932.

Testo completo

Abstract (sommario):

ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada A practical joint source/channel coding algorithm is proposed for the transmission of multiple images and videos to reduce the overall reconstructed source distortion at the receiver within a given total bit rate. It is demonstrated that by joint coding of multiple sources with such an objective, both improved distortion performance as well as reduced quality variation can be achieved at the s

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Beltrão, Neto Humberto Vasconcelos [Verfasser]. "Analysis and Design of Modern Coding Schemes for Unequal Error Protection and Joint Source-Channel Coding / Humberto Vasconcelos Beltrão Neto." Aachen : Shaker, 2012. http://d-nb.info/1067735119/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Chenette, Nathan Lee. "Symmetric schemes for efficient range and error-tolerant search on encrypted data." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/48976.

Testo completo

Abstract (sommario):

Large-scale data management systems rely more and more on cloud storage, where the need for efficient search capabilities clashes with the need for data confidentiality. Encryption and efficient accessibility are naturally at odds, as for instance strong encryption necessitates that ciphertexts reveal nothing about underlying data. Searchable encryption is an active field in cryptography studying encryption schemes that provide varying levels of efficiency, functionality, and security, and efficient searchable encryption focuses on schemes enabling sub-linear (in the size of the database) sear

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Shiyanovskii, Yuriy. "Reliability of SRAMs and 3D TSV ICS: Design Protection from Soft Errors and 3D Thermal Modeling." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1334891947.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Epple, Bernhard [Verfasser], and Hans Jürgen [Akademischer Betreuer] Ohlbach. "Computer based simulation of optical wireless communications for the development of optimized error protection and correction schemes / Bernhard Epple ; Betreuer: Hans Jürgen Ohlbach." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1184794081/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Epple, Bernhard [Verfasser], and Hans Jürgen [Akademischer Betreuer] Ohlbach. "Computer based simulation of optical wireless communications for the development of optimized error protection and correction schemes / Bernhard Epple ; Betreuer: Hans Jürgen Ohlbach." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1180981758/34.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

31

Gazzoni, Wanessa Carla. "Estudo do emaranhamento quantico com base na teoria da codificação cloassica." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261091.

Testo completo

Abstract (sommario):

Orientadores: Reginaldo Palazzo Junior, Carlile Lavor Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação Made available in DSpace on 2018-08-11T20:14:12Z (GMT). No. of bitstreams: 1 Gazzoni_WanessaCarla_D.pdf: 915784 bytes, checksum: d9b26e53c10c74a95fabe11a016027ce (MD5) Previous issue date: 2008 Resumo: Este trabalho apresenta algumas contribuições para um melhor entendimento do emaranhamento quântico e suas aplicações. Com o propósito de obter a classificação de estados quânticos puros arbitrários em separáveis ou emaranhados, a

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Abdurrhman, Ahmed B. M. "Error resilient video communications using high level M-QAM : modelling and simulation of a comparative analysis of a dual-priority M-QAM transmission system for H.264/AVC video applications over band-limited and error-phone channels." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4913.

Testo completo

Abstract (sommario):

An experimental investigation of an M level (M = 16, 64 and 256) Quadrature Amplitude Modulation (QAM) transmission system suitable for video transmission is presented. The communication system is based on layered video coding and unequal error protection to make the video bitstream robust to channel errors. An implementation is described in which H.264 video is protected unequally by partitioning the compressed data into two layers of different visual importance. The partition scheme is based on a separation of the group of pictures (GoP) in the intra-coded frame (I-frame) and predictive code

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Abdurrhman, Ahmed B. M. "Error relilient video communications using high level M-QAM. Modelling and simulation of a comparative analysis of a dual-priority M-QAM transmission system for H.264/AVC video applications over band-limited and error-phone channels." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4913.

Testo completo

Abstract (sommario):

An experimental investigation of an M level (M = 16, 64 and 256) Quadrature Amplitude Modulation (QAM) transmission system suitable for video transmission is presented. The communication system is based on layered video coding and unequal error protection to make the video bitstream robust to channel errors. An implementation is described in which H.264 video is protected unequally by partitioning the compressed data into two layers of different visual importance. The partition scheme is based on a separation of the group of pictures (GoP) in the intra-coded frame (I-frame) and predictive code

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Bring, Hampus, and Olle Emanuelsson. "Vinkelfelet i mätkretsens påverkan på riktade jordfelsskydd." Thesis, Högskolan Väst, Avd för automationssystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-7511.

Testo completo

Abstract (sommario):

Utfört examensarbete undersöker vinkelfelet i mätkretsen för riktade jordfelsskydd och hur det påverkar dess felbortkoppling. Uppkomna vinkelfel i mätkretsen kan påverka det riktade jordfelsskyddet så att verklig felström och uppmätt felström inte stämmer överens, vilket kan leda till uteblivna eller obefogade felbortkopplingar. Vattenfall ställer krav på att vinkelfelet får uppgå till max ±2 grader för mätkretsen. Eftersom vinkelfelet i många fall har en hög påverkan på jordfelsskyddets noggrannhet undersöks vad Vattenfalls vinkelkrav egentligen innebär. Största orsaken till vinkelfelet uppst

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Malach, Roman. "Zabezpečení přenosu dat proti dlouhým shlukům chyb." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217264.

Testo completo

Abstract (sommario):

This Master´s thesis discuses the protection of data transmission against long error bursts. The data is transmited throught the channel with defined error rate. Parameters of the channel are error-free interval 2000 bits and length of burst error 250 bits. One of the aims of this work is to make a set of possible methods for the realization of a system for data correction. The basic selection is made from most known codes. These codes are divided into several categories and then the best one is chosen for higher selection. Of course interleaving is used too. Only one code from each category c

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Wu, Chi-Jen, and 巫啟禎. "New Constructions of Equal Error Protection and Unequal Error Protection QC-LDPC Codes." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/7j7e83.

Testo completo

Abstract (sommario):

博士 國立清華大學 通訊工程研究所 104 Low-density parity-check (LDPC) block codes have been shown to have near-capacity perfor- mance with iterative message-passing decoding and sufficiently long block length. However, quite a number of methods for designing LDPC block codes are based on random construc- tions; the lack of structures leads to serious disadvantages of high complexity in encoding and decoding. Therefore, in recent researches, codes with algebraic structures have been devel- oped, among which quasi-cyclic LDPC (QC-LDPC) codes are an important class. They can be encoded and decoded wi

Gli stili APA, Harvard, Vancouver, ISO e altri

37

"Techniques for unequal error protection." 2001. http://library.cuhk.edu.hk/record=b5890836.

Testo completo

Abstract (sommario):

Ho Man-Shing. Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. Includes bibliographical references (leaves 65-66). Abstracts in English and Chinese. Acknowledgement --- p.i Abstract --- p.ii List of Abbreviation --- p.iii Chapter 1. --- Introduction --- p.1 Chapter 1.1 --- Digital Communication System --- p.3 Chapter 1.2 --- Thesis Organization --- p.4 Chapter 2. --- Error-Correcting Codes --- p.6 Chapter 2.1 --- Convolutional Codes --- p.7 Chapter 2.1.1 --- Generator Polynomials --- p.8 Chapter 2.1.2 --- Generator Matrix --- p.9 Chap

Gli stili APA, Harvard, Vancouver, ISO e altri

38

Cheng, Tsung-Chao, and 鄭宗超. "Error Protection of SPIHT Coded Images." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/56777210113503105492.

Testo completo

Abstract (sommario):

碩士 國立臺北科技大學 電腦通訊與控制研究所 87 With the rapid growth of Internet and wireless communications , images and video are widely applied to multimedia services. Efficient compression and reliable transmission of image and video information have there for become one of the most interesting research issues. The embedded zerotree wavelet (EZW) coding, first introduced by Shapiro in 1993, has become one of the most successful and practical algorithms for still image and video compress codecs. Owing to its excellent rate-distortion performance, low implementing complexity, and capability for scala

Gli stili APA, Harvard, Vancouver, ISO e altri

39

Wang, Chung-Hsuan, and 王忠炫. "Convolutional Codes for Unequal Error Protection." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/43762352703109476965.

Testo completo

Abstract (sommario):

博士 國立清華大學 電機工程學系 89 Channel coding for unequal error protection (UEP), which can provide different protecting efforts with respect to different protection requirements, has recently attracted significant research interests, since it can make the best use of the channel bandwidth for many practical applications. This thesis investigates convolutional codes, one of the most popular coding schemes in digital communication systems, for the application of UEP. From an algebraic theory point of view, we make a full exploration of the UEP capabi

Gli stili APA, Harvard, Vancouver, ISO e altri

40

Lee, Way-Long, and 李威龍. "Coded modulation for unequal error protection." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/68370498924066644992.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Chiou, Shian-Jiun, and 邱顯鈞. "Space-Time codes for Uneqaul Error Protection." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/79251116988964907463.

Testo completo

Abstract (sommario):

碩士 中原大學 電子工程研究所 92 With the progress of science and society, the demands for wireless multimedia services increase rapidly. However, the signals transmitted over wireless channels usually experience serious distortion due to the corruption of multipath fading and thermal noise. Space-time codes, which combine both of the spatial and temporal diversities, have been shown to provide excellent performance against the fading effect. Coding techniques for unequal error protection (UEP), which can provide different protecting efforts with respect to different protection requirements, can

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Shen, Pao Ming, and 沈保明. "Channel Error Protection for Vector-Quantized Images." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/64003130390663982583.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

43

Meng-Hui, Lin. "Investigation of Lossy Error Protection for Error-Resilient H.264/AVC Video Transmission." 2005. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2407200515371800.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Lin, Meng-Hui, and 林孟輝. "Investigation of Lossy Error Protection for Error-Resilient H.264/AVC Video Transmission." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/87385385863883182300.

Testo completo

Abstract (sommario):

碩士 國立臺灣大學 資訊工程學研究所 93 Recent research efforts on distributed video coding and Wyner-Ziv problems have revealed an exciting, new possibility for video applications. The Wyner-Ziv coding paradigm has suggested a novel protection scheme that can effectively combat packet losses. In this thesis, we investigate the application of lossy error protection for H.264/AVC video streaming over wireless network. Video waveforms are protected using the Wyner-Ziv coding concept, resulting in graceful video quality degradation in the presence of increasing network error rate. In addition, we propo

Gli stili APA, Harvard, Vancouver, ISO e altri

45

Ding, Jun-Ren, and 丁俊仁. "A Study of Unequal Error Protection for Transmission." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/04604739563327783359.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

46

Hsu, Chih-Hsiang, and 徐志祥. "Orthogonally Multiplexed Modulation Signals with Unequal Error Protection." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/92398445665669579025.

Testo completo

Abstract (sommario):

碩士 國立中央大學 電機工程研究所 91 Orthogonally Multiplexed Modulation signals are investigated in this thesis .The research focus is on the application of the unequal error protection to the Orthogonally-Multiplexed Modulation signals. First , the energy allocation among the component signals of Orthogonally Multiplexed Modulation is optimized by minimizing a modified symbol error function in AWGN channel and the scheme performance is observed. Second, the different R-S coding rate for the component signals of Orthogonally Multiplexed Modulation is used. The performance comparison between using

Gli stili APA, Harvard, Vancouver, ISO e altri

47

Li, Chien-Hao, and 李健豪. "Unequal Error Protection on SLCCA Image Encoded Bit Stream." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/10413855891662040993.

Testo completo

Abstract (sommario):

碩士 國立中山大學 資訊工程學系研究所 90 In SLCCA , the location and magnitude of significant coefficients are specified by the so-called significance map and magnitude respectively . As we know significance map is susceptible , error will propagate when data was deteriorated . This paper address this critical problem and provide an novel approach . In the significance map , the importance of data is interlaced . And our approach is to re-organize the significant map according to encoded symbol’s characteristic . In SLCCA , four symbols are used to encode : POS , NEG , ZERO , LINK . POS or NEG rep

Gli stili APA, Harvard, Vancouver, ISO e altri

48

林怡馨. "Pruned and punctured convolutional codes for unequal error protection." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/13324002847820934879.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Huang, Jia-Jyun, and 黃嘉俊. "Study of Unequal Error Protection for Wireless Transmission Application." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/55182694720123318369.

Testo completo

Abstract (sommario):

碩士 國立雲林科技大學 電機工程系碩士班 94 Because the fruitful and diversified contents of multimedia communication and the vulnerable environment of wireless transmission, applying unequal error protection is now an active research topic .In the paper, we propose a novel error rate weighted transmission scheme which combines Trellis Coded Modulation (TCM) and Non-uniform QAM. Based on weighting the grade of error protection requirement of data itself by differentiating their transmission quality demands, we utilize the characteristics of Gray (reflection) code and combine with the non-uniform QAM a

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Huang, Han-Ting, and 黃瀚霆. "Image Transmission Using Polar Codes and Unequal Error Protection." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/ah68t6.

Testo completo

Abstract (sommario):

碩士 國立臺灣科技大學 電子工程系 106 With the advancement and convenience of technology, image transmission is required for many applications. Since the pixels of the images have different weight of bits, we usually use unequal error protection (UEP) to transmit the images. There are many ways to combine UEP for use in image transmission in the existing literature, such as combining with turbo codes or LDPC codes. In recent years, there has been a new error correction scheme called polar codes. Polar codes use code construction to find out which channels are good for transmitting the information.

Gli stili APA, Harvard, Vancouver, ISO e altri

Tesi sul tema "Error Protection"

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili