Results 111 to 120 of about 2,457,220 (279)

Jointly designed quasi-cyclic LDPC-coded cooperation with diversity combining at receiver

open access: yesInternational Journal of Distributed Sensor Networks, 2020
This correspondence proposes a jointly-designed quasi-cyclic (QC) low-density parity-check (LDPC)-coded multi-relay cooperation with a destination node realized by multiple receive antennas.
Muhammad Asif   +5 more
doaj   +1 more source

Edge Transitive Ramanujan Graphs and Highly Symmetric LDPC Good Codes [PDF]

open access: yesarXiv, 2011
We present a symmetric LDPC code with constant rate and constant distance (i.e. good LDPC code) that its constraint space is generated by the orbit of one constant weight constraint under a group action. Our construction provides the first symmetric LDPC good codes. This solves the main open problem raised by Kaufman and Wigderson in [4].
arxiv  

Design and Performance of Rate-compatible Non-Binary LDPC Convolutional Codes [PDF]

open access: yes, 2010
In this paper, we present a construction method of non-binary low-density parity-check (LDPC) convolutional codes. Our construction method is an extension of Felstroem and Zigangirov construction for non-binary LDPC convolutional codes. The rate-compatibility of the non-binary convolutional code is also discussed.
arxiv   +1 more source

NetHD: Neurally Inspired Integration of Communication and Learning in Hyperspace

open access: yesAdvanced Intelligent Systems, Volume 6, Issue 7, July 2024.
The 6G network, the next‐generation communication system, is envisaged to provide unprecedented experience through hyperconnectivity involving everything. The communication should hold artificial intelligence‐centric network infrastructures as interconnecting a swarm of machines.
Prathyush P. Poduval   +4 more
wiley   +1 more source

Analisis Kinerja Jaringan 5G dengan Pengkodean QC-LDPC dan Polar

open access: yesJurnal Elkomika
ABSTRAK Jaringan 5G telah menjadi penanda penting dalam evolusi teknologi nirkabel yang menawarkan kecepatan dan kinerja yang luar biasa untuk memenuhi kebutuhan konektivitas yang semakin meningkat.
RENI DYAH WAHYUNINGRUM   +3 more
doaj   +1 more source

Differentially Encoded LDPC Codes—Part II: General Case and Code Optimization

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
This two-part series of papers studies the theory and practice of differentially encoded low-density parity-check (DE-LDPC) codes, especially in the context of noncoherent detection. Part I showed that a special class of DE-LDPC codes, product accumulate
Jing Li (Tiffany)
doaj   +1 more source

On Multilevel Coding Schemes Based on Non-Binary LDPC Codes [PDF]

open access: yesarXiv, 2017
We address the problem of constructing of coding schemes for the channels with high-order modulations. It is known, that non-binary LDPC codes are especially good for such channels and significantly outperform their binary counterparts. Unfortunately, their decoding complexity is still large.
arxiv  

ISTVP: Independent single transaction verification protocol for light node using fraud proofs without collaborator

open access: yesIET Blockchain, Volume 4, Issue 2, Page 209-221, June 2024.
We present SVST, a block extension architecture designed to enhance the efficiency of transaction history retrieval and reduce storage requirements for transaction validation. By leveraging SVST, we introduce ISTVP, a high‐level verification protocol tailored for light nodes.
Minghao Lee   +4 more
wiley   +1 more source

Polymer Expansions for Cycle LDPC Codes

open access: yesarXiv: Information Theory, 2012
We prove that the Bethe expression for the conditional input-output entropy of cycle LDPC codes on binary symmetric channels above the MAP threshold is exact in the large block length limit. The analysis relies on methods from statistical physics. The finite size corrections to the Bethe expression are expressed through a polymer expansion which is ...
Macris, Nicolas, Vuffray, Marc
openaire   +5 more sources

On Design of Protograph LDPC Codes for Large-Scale MIMO Systems

open access: yesIEEE Access, 2020
Protograph low-density parity-check (LDPC) codes and large-scale multi-input multi-output (LS-MIMO) systems have achieved great interest with various practical applications.
Hieu D. Vu   +3 more
doaj   +1 more source

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