Results 31 to 40 of about 1,751 (157)

Spatially-coupled precoded rateless codes [PDF]

2013 IEEE International Symposium on Information Theory, 2013
Raptor codes are rateless codes that achieve the capacity on the binary erasure channels. However the maximum degree of optimal output degree distribution is unbounded. This leads to a computational complexity problem both at encoders and decoders.
Sakata, Kosuke, Kasai, Kenta, Sakaniwa, Kohichi   +2 more
openaire   +2 more sources

Digital Twin‐Based Optimization of Service Availability in LEO Mega Constellations Considering Handover Delays in Open RAN

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram, Luca Feltrin, Mustafa Ozger, Cicek Cavdar   +3 more
wiley   +1 more source

Costa Precoding in One Dimension [PDF]

2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
We design an optimum modulator for the Costa (dirty-paper) precoding problem under the constraint of a binary signaling alphabet, and assuming the interference symbols belong to a binary constellation. We evaluate the performance of our technique in terms of the mutual information between the channel input and output, and compare it to that of ...
Du, Jinfeng, Larsson, Erik G., Skoglund, Mikael   +2 more
openaire   +2 more sources

Co‐textual dopes: How LLMs produce contextually appropriate text in chat interactions with humans without access to context

Journal of Linguistic Anthropology, Volume 36, Issue 1, May 2026.
Abstract This paper asks how LLM‐based systems can produce text that is taken as contextually appropriate by humans without having seen text in its broader context. To understand how this is possible, context and co‐text have to be distinguished. Co‐text is input to LLMs during training and at inference as well as the primary resource of sense‐making ...
Ole Pütz
wiley   +1 more source

Low complexity hybrid precoding method in mmWave massive MIMO system

Dianxin kexue, 2016
A low-complexity hybrid precoding method was proposed to design the hybrid precoding for mmWave massive MIMO system.Firstly,an initial radio frequency(RF)precoding matrix was constructed based on the singular value decomposition.Then an updated RF matrix
Jianwei XIANG, Xiulan YU, Xiaorong JING
doaj   +2 more sources

Modeling and Optimization of Frequency‐Doubled Radio‐Over‐Fiber Link Based on Deep Learning Technique

Advanced Photonics Research, Volume 7, Issue 3, March 2026.
This article proposes a deep learning (DL) approach for modeling and optimizing frequency‐doubled radio‐over‐fiber links. By collectively replacing traditional components with DL model, accurate system evaluation is achieved. Moreover, through an end‐to‐end architecture, performance optimization is accomplished.
Difei Shi, Xiangyan Meng, Hanxin Chen, Wei Li   +3 more
wiley   +1 more source

Joint Quantized Constant Envelope Precoding and Antenna Selection for Massive MU-MIMO Downlink Systems Using Higher-Order QAM

IEEE Access, 2019
This paper introduces the antenna selection (AS) mechanism into the quantized constant envelope (CE) precoding in massive multiuser multiple-input multiple-output systems to simultaneously reduce multiuser interference and hardware power consumption ...
Jung-Chieh Chen
doaj   +1 more source

A Bibliometric Review of a Decade of Integrated Reporting Research*

Accounting Perspectives, Volume 25, Issue 1, Page 7-54, March 2026.
ABSTRACT Understanding the current status and future directions of integrated reporting (IR) within today's voluntary reporting landscape is crucial for advancing accounting scholarship and practice. This study presents a comprehensive bibliometric review of IR research alongside content analysis to identify publication trends, research collaborations,
Ajanthan Alagathurai, Reza M. Monem, Shireenjit Johl, Shamsun Nahar   +3 more
wiley   +1 more source

Precoder and precoding method in a multi-antenna system

, 2012
A precoder and a precoding method in a multiuser multi-antenna system are provided. The precoder includes a channel checker for determining a DownLink (DL) channel condition of terminals in a service coverage area, a pre-compensator for pre-compensating, for channel distortion, signals to be sent to the terminals when a nonlinear algorithm is selected ...
Robert W. Heath, Jr., Chan-Byoung Chae, Sei-Joon Shim, Jong-Hyung Kwun, In-Soo Hwang   +4 more
openaire   +2 more sources

Contribution of non‐orthogonal multiple access signalling to practical multibeam satellite deployments

International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 73-88, January/February 2026.
The potential gains of NOMA were evaluated in a satellite system with heterogeneous receivers, after considering the use of specific DVB‐S2X MODCODs, along with the impact of non‐linearities. It was concluded that a judicious power allocation in NOMA, jointly optimized with the IBO of the PAs, can yield significant sum‐rate gains.
Tomás Ramírez, Carlos Mosquera
wiley   +1 more source