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High-performance MPEG-2 software decoder on the Cell broadband engine

by David A. Bader, Sulabh Patel - In Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium (Miami, FL , 2008
"... The Sony-Toshiba-IBM Cell Broadband Engine is a heterogeneous multicore architecture that consists of a traditional microprocessor (PPE) with eight SIMD coprocessing units (SPEs) integrated on-chip. While the Cell/B.E. processor is designed with multimedia applications in mind, there are currently n ..."
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no open-source, optimized implementations of such applications available. In this paper, we present the design and implementation behind the creation of an optimized MPEG-2 software decoder for this unique parallel architecture, and demonstrate its performance through an experimental study

Multiple Folding for Successive Cancelation Decoding of Polar Codes

by Sinan Kahraman, Emanuele Viterbo, Mehmet E. Çelebi
"... Abstract—Polar coding is known as the first provably capacity-achieving coding scheme under low-complexity suboptimal suc-cessive cancelation decoding (SCD). The large error-correction capability of finite-length polar codes is mostly achieved with relatively long codes. SCD is the conventional deco ..."
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, assuming full parallelization. We show that multiple folded SCD can be effectively implemented for up to κ = 3 foldings due to memory limitations. This decoder achieves exactly the same performance of the original SCD with signifi-cantly reduced latency. Index Terms—Polar codes, SC decoder, folding

High Performance Turbo Decoder on CELL BE for

by Wimax System
"... Abstract — Turbo codes are widely used in many radio systems due to its superior performance and Software Radio (SR) is an emerging paradigm of the wireless communication system design due to its good flexibility and adaptability. However, since turbo decoding is computationally intensive, the SR im ..."
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Abstract — Turbo codes are widely used in many radio systems due to its superior performance and Software Radio (SR) is an emerging paradigm of the wireless communication system design due to its good flexibility and adaptability. However, since turbo decoding is computationally intensive, the SR

A Low-Complexity and High-Performance Algorithm for the Fast Correlation Attack

by Miodrag J. Mihaljevic, Marc P. C. Fossorier, Hideki Imai - in Fast Software Encryption (FSE’00 , 2000
"... . An algorithm for cryptanalysis of certain keystream generators is proposed. The developed algorithm has the following two advantages over other reported ones: (i) it is more powerful and (ii) it provides a high-speed software implementation, as well as a simple hardware one, suitable for high ..."
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. An algorithm for cryptanalysis of certain keystream generators is proposed. The developed algorithm has the following two advantages over other reported ones: (i) it is more powerful and (ii) it provides a high-speed software implementation, as well as a simple hardware one, suitable for high

Single-Scan Min-Sum Algorithms for Fast Decoding of LDPC Codes

by Xiaofei Huang , 2006
"... Abstract — Many implementations for decoding LDPC codes are based on the (normalized/offset) min-sum algorithm due to its satisfactory performance and simplicity in operations. Usually, each iteration of the min-sum algorithm contains two scans, the horizontal scan and the vertical scan. This paper ..."
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Abstract — Many implementations for decoding LDPC codes are based on the (normalized/offset) min-sum algorithm due to its satisfactory performance and simplicity in operations. Usually, each iteration of the min-sum algorithm contains two scans, the horizontal scan and the vertical scan. This paper

HIGH PERFORMANCE ERROR CORRECTION FOR QUANTUM KEY DISTRIBUTION USING POLAR CODES

by Paul Jouguet, Sebastien Kunz-Jacques , 2013
"... We study the use of polar codes for both discrete and continuous variables Quantum Key Distribution (QKD). Although very large blocks must be used to obtain the efficiency required by quantum key distribution, and especially continuous variables quantum key distribution, their implementation on gene ..."
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on generic x86 Central Processing Units (CPUs) is practical. Thanks to recursive decoding, they exhibit excellent decoding speed, much higher than large, irregular Low Density Parity Check (LDPC) codes implemented on similar hardware, and competitive with implementations of the same codes on high-end Graphic

Memory Optimization of MAPTurbo Decoder Algorithms

by Curt Schurgers, Francky Catthoor, Marc Engels - IEEE Trans. VLSI Syst , 2001
"... Turbo codes are the most recent breakthrough in coding theory. However, the decoder's implementation cost limits their incorporation in commercial systems. Although the decoding algorithm is highly data dominated, no true memory optimization study has been performed yet. We have extensively and ..."
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Turbo codes are the most recent breakthrough in coding theory. However, the decoder's implementation cost limits their incorporation in commercial systems. Although the decoding algorithm is highly data dominated, no true memory optimization study has been performed yet. We have extensively

Low Complexity Opportunistic Decoder for Network Coding

by Bei Yin, Michael Wu, Guohui Wang, Joseph R. Cavallaro
"... Abstract—In this paper, we propose a novel opportunistic decoding scheme for network coding decoder which significantly reduces the decoder complexity and increases the through-put. Network coding was proposed to improve the network throughput and reliability, especially for multicast transmissions. ..."
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. Although network coding increases the network performance, the complexity of the network coding decoder algorithm is still high, especially for higher dimensional finite fields or larger network codes. Different software and hardware approaches were proposed to accelerate the decoding algorithm

MPEG-4’S MANY ALGORITHMS AND HIGH-PERFORMANCE REQUIREMENTS POSE A CHALLENGE FOR DESIGNERS OF A NEW GENERATION OF FLEXIBLE, LOW-POWER CODER/DECODER VLSI IMPLEMENTATIONS FOR MOBILE AND

by Johannes Kneip, Bernd Schmale, Henning Möller, Robert Bosch Gmbh, Portable Applications
"... Today’s information society is experiencing a steadily increasing convergence of telecommunications, information exchange, digital video, and commercial process services. Advanced coding of audio, video, and data is the essential basis for efficiently exploiting data bandwidth capacities and user-fr ..."
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and graphics. Objects are coded and transmitted separately and composed at the decoder site, letting the receiver interact and influence the way the scene is presented on the receiving display and speakers. The computer industry, telecom operators, the communications industry, and the consumer electronics

Error-Correcting Codes as Source for Decoding Ambiguity

by Adrian Dabrowski, Isao Echizen
"... Abstract—Data decoding, format, or language ambiguities have been long known for amusement purposes. Only recently it came to attention that they also pose a security risk. In this paper, we present decoder manipulations based on deliberately caused ambiguities facilitating the error correction mech ..."
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mechanisms used in several popular applications. This can be used to encode data in multiple formats or even the same format with different content. Implementation details of the decoder or environmental differences decide which data the decoder locks onto. This leads to different users receiving different
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