Results 161 to 170 of about 24,946 (192)
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ACM Transactions on Storage, 2017
The raw error rate of a Solid-State drive (SSD) increases gradually with the increase of Program/Erase (P/E) cycles, retention time, and read cycles. Traditional approaches often use Error Correction Code (ECC) to ensure the reliability of SSDs.
Shigui Qi +4 more
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The raw error rate of a Solid-State drive (SSD) increases gradually with the increase of Program/Erase (P/E) cycles, retention time, and read cycles. Traditional approaches often use Error Correction Code (ECC) to ensure the reliability of SSDs.
Shigui Qi +4 more
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Irregular LDPC codes as concatenation of regular LDPC codes
IEEE Communications Letters, 2005In this letter, the construction of irregular LDPC codes obtained by concatenating regular ones is considered. These codes are analyzed for the binary symmetric channel (BSC). It is shown via proper distribution evolution that such concatenated codes have in general a threshold value weaker (but not necessarily much different) than their unconstrained ...
M. Fossorier, N. Miladinovic
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Block-LDPC: a practical LDPC coding system design approach
IEEE Transactions on Circuits and Systems I: Regular Papers, 2005This paper presents a joint low-density parity-check (LDPC) code-encoder-decoder design approach, called Block-LDPC, for practical LDPC coding system implementations. The key idea is to construct LDPC codes subject to certain hardware-oriented constraints that ensure the effective encoder and decoder hardware implementations.
null Hao Zhong, null Tong Zhang
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Efficient Quantum Stabilizer Codes: LDPC and LDPC-Convolutional Constructions
IEEE Transactions on Information Theory, 2010Existing quantum stabilizer codes constructed from the classic binary codes exclusively belong to the special subclass of Calderbank-Shor-Steane (CSS) codes. This paper fills in the gap by proposing five systematic constructions for non-CSS stabilizer codes, the first four of which are based on classic binary quasi-cyclic low-density parity-check (LDPC)
Peiyu Tan, Jing Li
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The Ninth International Conference onCommunications Systems, 2004. ICCS 2004., 2004
Low-density parity-check (LDPC) codes are well known for their abilities to achieve near Shannon channel capacity limit and low decoding complexity compared with the turbo decoder. However, their encoding complexities grow with the square of the code length.
null Zhang Qi, null Ng Chun Sum
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Low-density parity-check (LDPC) codes are well known for their abilities to achieve near Shannon channel capacity limit and low decoding complexity compared with the turbo decoder. However, their encoding complexities grow with the square of the code length.
null Zhang Qi, null Ng Chun Sum
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Proceedings of the 46th Annual Design Automation Conference, 2009
This paper addresses a frequently overlooked problem: designing a memory architecture for an LDPC decoder. We analyze the requirements to support the codes defined in the IEEE 802.11n and 802.16e standards. We show a design methodology for a flexible memory subsystem that reconciles design cost, energy consumption and required latency on a ...
Erick Amador +2 more
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This paper addresses a frequently overlooked problem: designing a memory architecture for an LDPC decoder. We analyze the requirements to support the codes defined in the IEEE 802.11n and 802.16e standards. We show a design methodology for a flexible memory subsystem that reconciles design cost, energy consumption and required latency on a ...
Erick Amador +2 more
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Comprehensive Study on CC-LDPC, BC-LDPC and Polar Code
2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW), 2020Channel coding scheme is very crucial for the next sixth generation (6G) mobile communication. In this paper, we investigate the encoding and decoding methods of the state-of-the-art channel codes, which include the convolutional code LDPC (CC-LDPC), block code LDPC (BC-LDPC) and polar code to access the benefits from CC-LDPC.
Kun Zhu, Zhanji Wu
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2006 8th international Conference on Signal Processing, 2006
The presented LDPC-codec has no encrypting function since its rediscovering, and the presented encrypting for signal transmission needs additional algorithm and program, which leads the great time delay for the signal receiving. This paper reveals that LDPC-codec itself can have the desired encrypting faction if adopting our processing approach for the
Yang Xiao, Ying Zhao, Moon Lee
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The presented LDPC-codec has no encrypting function since its rediscovering, and the presented encrypting for signal transmission needs additional algorithm and program, which leads the great time delay for the signal receiving. This paper reveals that LDPC-codec itself can have the desired encrypting faction if adopting our processing approach for the
Yang Xiao, Ying Zhao, Moon Lee
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Protograph-based LDPC-Hadamard Codes
2020 IEEE Wireless Communications and Networking Conference (WCNC), 2020In this paper, we propose a new method to design low-density parity-check Hadamard (LDPC-Hadamard) codes — a type of ultimate-Shannon-limit approaching channel codes. The technique is based on applying Hadamard constraints to the check nodes in a generalized protograph-based LDPC code, followed by lifting the generalized protograph.
Peng-Wei Zhang +2 more
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Nonbinary LDPC-Coded Spatial Modulation
IEEE Transactions on Wireless Communications, 2017This paper presents a nonbinary low-density parity-check (LDPC) coded spatial modulation (CSM) for multiple-input multiple-output communication systems, in which the information bits for choosing active transmit antennas and the bits for choosing constellation signals are protected by a nonbinary LDPC code.
Dan Feng +3 more
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