Results 111 to 120 of about 4,441 (227)
ICC 2024 - IEEE International Conference on CommunicationsOrthogonal Time Frequency Space (OTFS) is a framework for communications and active sensing that processes signals in the delay-Doppler (DD) domain. It is informed by 6G propagation environments, where Doppler spreads measured in kHz make it more and more difficult to estimate channels, and the standard model-dependent approach to wireless ...
Beyza Dabak +3 more
openaire +2 more sources
Investigation of punctured LDPC codes and time-diversity on free-space optical links
, 2011 In this paper, we analyze the behavior of DVB-S2 un-punctured/punctured low-density parity-check (LDPC) coded on-off-keying (OOK) under atmospheric turbulence conditions by utilizing time diversity. A performance characterization between these schemes is
Ghassemlooy, Zabih +4 more
core
Multilevel structured low-density parity-check codes for AWGN and Rayleigh channels
, 2010 We propose a novel class of protograph low-density parity-check (LDPC) codes having a combinatorial rather than a random structure, which are termed multilevel-structured (MLS) LDPC codes. It is demonstrated that they posses a strikingly simple structure
Chen, Sheng +2 more
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Jointed LDPC codes design for half-duplex relay channels
Tongxin xuebao, 2013 In order to increase the coding gain of decode-and-forward half-duplex relay channel, a jointed LDPC coding structure and its corresponding optimization scheme was proposed. Novel structure made the subcodes of both source and relay nodes as parts of the
Zi-qiang CHEN +3 more
doaj +2 more sources
QC-LDPC code-based cryptography
, 2014 This book describes the fundamentals of cryptographic primitives based on quasi-cyclic low-density parity-check (QC-LDPC) codes, with a special focus on the use of these codes in public-key cryptosystems derived from the McEliece and Niederreiter schemes.
Baldi, Marco
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Hardware-Aware GA-Based Regular Quasi-Cyclic LDPC Code Search Algorithm
, 2007 Gallager’s Low-Density Parity-Check (LDPC) codes have recently received a lot of attention because of their excellent performance and low decoding complexity.
黎煥昇, Li, Huan-Sheng
core
Short Low-Rate Non-Binary Turbo Codes
, 2012 A serial concatenation of an outer non-binary turbo code with different inner binary codes is introduced and analyzed. The turbo code is based on memory-1 time-variant recursive convolutional codes over high order fields.
Paolini, Enrico +9 more
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The Application Study of Non-Binary LDPC Code
, 2011 Most practical communication systems need higher bandwidth efficiency; this article increased the bandwidth efficiency through code rate and modulation mode, by combining Non-binary LDPC code with MSK modulation and making practical use of them in ...
Yu Ping Wu +2 more
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