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检索条件"主题词=Joint Source-channel coding"
621 条 记 录,以下是461-470 订阅
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On the distortion SNR exponent of hybrid digital-analog space-time coding
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IEEE TRANSACTIONS ON INFORMATION THEORY 2007年 第8期53卷 2867-2878页
作者: Caire, Giuseppe Narayanan, Krishna Univ So Calif Dept Elect Engn Viterbi Sch Engn Los Angeles CA 90089 USA Texas A&M Univ Dept Elect Engn College Stn TX 77840 USA
We consider the transmission of a real independent and identically distributed(i.i.d.) "analog" source over a quasi-static M-input N-output multiple-input multiple-output (MIMO) block-fading channel. The rel... 详细信息
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Quality enhancement of printed-and-scanned images using distributed coding
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SIGNAL PROCESSING 2007年 第6期87卷 1301-1313页
作者: Voloshynovskiy, S. Koval, O. Deguillaume, F. Pun, T. Univ Geneva CUI CH-1211 Geneva 4 Switzerland
In this paper we address visual communications via print-and-scan channels from an information-theoretic point of view as communications with side information that targets quality enhancement of visual data at the out... 详细信息
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coding problems for channels with partial state information at the transmitter
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IEEE TRANSACTIONS ON INFORMATION THEORY 2007年 第12期53卷 4521-4536页
作者: Cemal, Yakup Steinberg, Yossef AudioCodes Ltd IL-70151 Lod Israel Technion Israel Inst Technol Dept Elect Engn IL-32000 Haifa Israel
channel coding for single-user channels with rate-limited, coded, partial channel state information at the transmitter and full side information (SI) at the receiver is studied. In the first part of the current work, ... 详细信息
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Packet-by-packet adaptive scheme for video coding and transmission over wireless IP networks using rate-compatible punctured turbo (RCPT) codes
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WIRELESS PERSONAL COMMUNICATIONS 2007年 第4期43卷 1675-1687页
作者: Pei, Yong Arnbetkar, Viraj S. Wright State Univ Dept Comp Sci & Engn Dayton OH 45435 USA
In this paper, we consider real-time video coding and transmission over packet-switched wireless IP networks, such as WLAN, using RCPT codes and joint source-channel coding (JSCC) with concentration on a packet-by-pac... 详细信息
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Rate and power allocation for layered transmission with superposition coding
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IEEE SIGNAL PROCESSING LETTERS 2007年 第11期14卷 773-776页
作者: Etemadi, Farzad Jafarkhani, Hamid Univ Calif Irvine Ctr Pervasive Communicat & Comp Dept Elect Engn & Comp Sci Irvine CA 92697 USA
We consider layered transmission of a Gaussian source over a quasi-static fading channel. A broadcast strategy is used in which multiple layers of source data are superimposed, and each layer is allocated a different ... 详细信息
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Robust image transmission strategies for fading channels
Robust image transmission strategies for fading channels
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3rd International Conference on Information and Communication Technologies, vol.2
作者: Herve BOEGLEN Olivier HAEBERLE Christian CHATELLIER Christian OLIVIER Laboratoire MIPS LABEL IUT de Mulhouse Mulhouse Cedex France Laboratoire SIC XLIM UMR CNRS 6172 Futuroscope Cedex France
The aim of this paper is to present a robust still-image transmission scheme and show its performance when used on a frequency flat fading channel By following a joint source-channel coding approach, it is shown that ... 详细信息
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Efficient algorithms for optimal uneven protection of single and multiple scalable code streams against packet erasures
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IEEE TRANSACTIONS ON MULTIMEDIA 2007年 第7期9卷 1466-1474页
作者: Dumitrescu, Sorina wu, Xiaolin Wang, Zhe McMaster Univ Dept Elect & Comp Engn Hamilton ON L8S 4K1 Canada
We study algorithmic approaches for rate-fidelity optimal packetization of a single and multiple scalable source code streams with uneven erasure protection (UEP). A new algorithm is developed to obtain the globally o... 详细信息
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joint source-channel-authentication resource allocation and unequal authenticity protection for multimedia over wireless networks
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IEEE TRANSACTIONS ON MULTIMEDIA 2007年 第4期9卷 837-850页
作者: Li, Zhi Sun, Qibin Lian, Yong Chen, Chang Wen Natl Univ Singapore Dept Elect & Comp Engn Singapore 117548 Singapore ASTAR Inst Infocomm Res Singapore 119613 Singapore Florida Inst Technol Dept Elect & Comp Engn Melbourne FL 32901 USA
There have been increasing concerns about the security issues of wireless transmission of multimedia in recent years. Wireless networks, by their nature, are more vulnerable to external intrusions than wired ones. Man... 详细信息
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An end-to-end embedded approach for multicast/broadcast of scalable video over multiuser CDMA wireless networks
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IEEE TRANSACTIONS ON MULTIMEDIA 2007年 第3期9卷 655-667页
作者: Chan, Yee Sin Modestino, James W. Qu, Qi Fan, Xingzhe Univ Miami Dept Elect & Comp Engn Coral Gables FL 33124 USA Univ Calif San Diego Dept Elect & Comp Engn La Jolla CA 92093 USA
We investigate an embedded multicast/broadcast approach for transport of digital video over spread-spectrum code-division multiple access (CDMA) cellular networks. Previous work has shown that the incorporation of a s... 详细信息
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Error resilient LZ'77 data compression: Algorithms, analysis, and experiments
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IEEE TRANSACTIONS ON INFORMATION THEORY 2007年 第5期53卷 1799-1813页
作者: Lonardi, Stefano Szpankowski, Wojciech Ward, Mark Daniel Univ Calif Riverside Dept Comp Sci & Engn Riverside CA 92521 USA Purdue Univ Dept Comp Sci W Lafayette IN 47907 USA Univ Penn Dept Math Philadelphia PA 19104 USA
We propose a joint source-channel coding algorithm capable of correcting some errors in the popular Lempel-Ziv'77 (LZ'77)scheme without introducing any measurable degradation in the compression performance. Th... 详细信息
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