Results 1 to 10 of about 747,002 (160)

An Enhanced Decoding Algorithm for Coded Compressed Sensing with Applications to Unsourced Random Access [PDF]

open access: yesSensors, 2022
Unsourced random access (URA) has emerged as a pragmatic framework for next-generation distributed sensor networks. Within URA, concatenated coding structures are often employed to ensure that the central base station can accurately recover the set of ...
Vamsi K. Amalladinne   +3 more
doaj   +2 more sources

On the Most Innovative Outer Access Structure of any Bantu Dictionary: The Lexique kikongo–français by Charles Polis (1938)

open access: yesLexikos, 2015
In this article a little-known dictionary manuscript from the 1930s, the Lexique kikongo-français by the Jesuit missionary Charles Polis, is analysed in great detail. Section 1 expounds on the goal and raison d'être of the study, Section 2 introduces the
Gilles-Maurice de Schryver
doaj   +2 more sources

Environmentally Sustainable Raised Access Flooring Product Development

open access: yesBuildings
Raised access floors are nowadays widely used in buildings. A novel raised access flooring product is developed by this research, with a set of sustainable features, including less environmental impact and high strength.
Wenjie Peng   +3 more
doaj   +2 more sources

The structure of the Tad pilus alignment complex reveals a periplasmic conduit for pilus extension

open access: yesNature Communications
The Tad (Tight adherence) pilus is a bacterial appendage implicated in virulence, cell-cell aggregation, and biofilm formation. Despite its homology to the well-characterised Type IV pilus, the structure and assembly mechanism of the Tad pilus are poorly
Sasha L. Evans   +8 more
doaj   +2 more sources

BiSPARCs for Unsourced Random Access in Massive MIMO [PDF]

open access: yesAsilomar Conference on Signals, Systems and Computers, 2023
This paper considers the massive MIMO unsourced random access problem in a quasi-static Rayleigh fading setting. The proposed coding scheme is based on a concatenation of a “conventional” channel code (such as, e.g., LDPC) serving as an outer code, and a
Patrick Agostini   +2 more
semanticscholar   +1 more source

Massive Unsourced Random Access: Exploiting Angular Domain Sparsity [PDF]

open access: yesIEEE Transactions on Communications, 2022
This paper investigates the unsourced random access (URA) scheme to accommodate numerous machine-type users communicating to a base station equipped with multiple antennas. Existing works adopt a slotted transmission strategy to reduce system complexity;
Xinyu Xie   +7 more
semanticscholar   +1 more source

Coded Compressed Sensing With List Recoverable Codes for the Unsourced Random Access [PDF]

open access: yesIEEE Transactions on Communications, 2022
We consider a coded compressed sensing approach for the unsourced random access and replace the outer tree code proposed by Amalladinne et al. (2020) with the list recoverable code capable of correcting $t$ errors.
K. Andreev, P. Rybin, A. Frolov
semanticscholar   +1 more source

Public–private partnerships in fostering outer space innovations

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2023
As public and private institutions recognize the role of space exploration as a catalyst for economic growth, various areas of innovation are expected to emerge as drivers of the space economy.
Gordon Rausser   +2 more
semanticscholar   +1 more source

Research on Defect Detection of the Outer Side of Bottle Cap Based on High Angle and Multi-View Vision System

open access: yesIEEE Access, 2023
In the defect detection of the outer side of the bottle cap, it is difficult to achieve uniform illumination of the circular arc surface to be detected.
Chenghu He   +4 more
semanticscholar   +1 more source

Unsourced Random Access With Coded Compressed Sensing: Integrating AMP and Belief Propagation [PDF]

open access: yesIEEE Transactions on Information Theory, 2020
Sparse regression codes with approximate message passing (AMP) decoding have gained much attention in recent times. The concepts underlying this coding scheme extend to unsourced random access with coded compressed sensing (CCS), as first demonstrated by
V. Amalladinne   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy