Results 51 to 60 of about 24,946 (192)
Performance Analysis of the LDPC‐Coded Hybrid LQAM‐MPPM for UWOC Systems
IET Optoelectronics, Volume 20, Issue 1, January/December 2026.The effectiveness of LDPC codes in improving the performance of hybrid modulations is discussed, with coded 128‐QAM‐(12, 2) MPPM offering ~6.5 and 5.8 dB code gains at a BER of in strong and moderate turbulence, respectively. These results demonstrate the promise of hybrid modulation with LDPC as a robust and efficient modulation scheme for UWOC ...
Hongyan Jiang +6 more
wiley +1 more source
ALOE-Based Flexible LDPC Decoder [PDF]
2010 13th Euromicro Conference on Digital System Design: Architectures, Methods and Tools, 2010 Radio communications terminals and infrastructure tend to support an increasing range of algorithms and radio access technologies. Flexible processing platforms are therefore needed for supporting multistandard or heterogeneous radios. Channel decoding is one of the most computing demanding digital signal processing blocks of a radio transceiver.
Gómez Miguelez, Ismael +6 more
openaire +2 more sources
Spatially Coupled LDPC Codes Constructed from Protographs
, 2014 In this paper, we construct protograph-based spatially coupled low-density parity-check (SC-LDPC) codes by coupling together a series of L disjoint, or uncoupled, LDPC code Tanner graphs into a single coupled chain.
Costello Jr, Daniel J. +2 more
core +1 more source
Scene‐Driven Semantic Alignment for Generative Communication in Underwater Images
IET Signal Processing, Volume 2026, Issue 1, 2026.Underwater images serve as one of the most intuitive media for human perception of underwater environments. However, the limited bandwidth and susceptibility to noise in underwater acoustic (UWA) channels pose significant challenges for traditional image encoding and transmission methods, thereby hindering high‐quality image reconstruction.
Yuetong Li +5 more
wiley +1 more source
Time-invariant LDPC convolutional codes [PDF]
2017 IEEE International Symposium on Information Theory (ISIT), 2017 Submitted to 2017 IEEE International Symposium on Information ...
Achlioptas, Dimitris +3 more
openaire +2 more sources
Multiplicatively Repeated Non-Binary LDPC Codes [PDF]
, 2011 We propose non-binary LDPC codes concatenated with multiplicative repetition codes. By multiplicatively repeating the (2,3)-regular non-binary LDPC mother code of rate 1/3, we construct rate-compatible codes of lower rates 1/6, 1/9, 1/12,... Surprisingly,
Charly Poulliat +4 more
core
On Complexity, Energy- and Implementation-Efficiency of Channel Decoders
, 2010 Future wireless communication systems require efficient and flexible baseband receivers. Meaningful efficiency metrics are key for design space exploration to quantify the algorithmic and the implementation complexity of a receiver.
Kienle, Frank +2 more
core +1 more source
Journal of Computer Networks and Communications, Volume 2026, Issue 1, 2026.The sixth generation (6G) wireless networks are used to provide a large coverage, and also this generation needed to support different emerging applications in harsh areas with higher user equipment mobility. For the above case, a new modulation technique called orthogonal time–frequency space (OTFS) modulation has emerged as a promising technique to ...
Ephrem Gelamite Demere +2 more
wiley +1 more source
Concatenated Turbo/LDPC codes for deep space communications: performance and implementation [PDF]
, 2013 Deep space communications require error correction codes able to reach extremely low bit-error-rates, possibly with a steep waterfall region and without error floor. Several schemes have been proposed in the literature to achieve these goals.
Condo, Carlo
core
Wave-like Decoding of Tail-biting Spatially Coupled LDPC Codes Through Iterative Demapping
, 2017 For finite coupling lengths, terminated spatially coupled low-density parity-check (SC-LDPC) codes show a non-negligible rate-loss. In this paper, we investigate if this rate loss can be mitigated by tail-biting SC-LDPC codes in conjunction with ...
Aref, Vahid +3 more
core +1 more source