Results 71 to 80 of about 737,076 (296)
Organic Materials of Tomorrow: Horizons of Artificial Intelligence
Advanced Materials, EarlyView.This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena +3 more
wiley +1 more source
On Doubly-Cyclic Convolutional Codes [PDF]
Applicable Algebra in Engineering, Communication and Computing, 2006 Cyclicity of a convolutional code (CC) is relying on a nontrivial automorphism of the algebra F[x]/(x^n-1), where F is a finite field. If this automorphism itself has certain specific cyclicity properties one is lead to the class of doubly-cyclic CC's. Within this large class Reed-Solomon and BCH convolutional codes can be defined.
Gluesing-Luerssen, H, Schmale, W
openaire +4 more sources
, 2010 In this paper, we consider coding schemes designed for two nodes communicating with each other with the aid of a relay node, which receives information from the two nodes in the first time slot.
Muhammad Fasih Uddin Butt +7 more
core +1 more source
Layered Steered Space-Time Codes Using Iterative Detection
, 2007 This paper presents a novel multifunctional multiple-input multiple-output (MIMO) scheme that combines the benefits of the Vertical Bell Labs Layered Space-Time (VBLAST) scheme, of Space-Time Codes (STC) as well as of beamforming.
Alamri, O. +5 more
core +2 more sources
Space-Time Codes and Concatenated Channel Codes for Wireless Communications
, 2002 Following a brief historical perspective on channel coding, an introduction to space–time block codes is given. The various space–time codes considered are then concatenated with a range of channel codecs, such as convolutional and block-based turbo ...
Liew, T.H., Hanzo, Lajos
core +1 more source
A History of Channel Coding in Aeronautical Mobile Telemetry and Deep-Space Telemetry
EntropyThis paper presents a history of the development of channel codes in deep-space telemetry and aeronautical mobile telemetry. The history emphasizes “firsts” and other remarkable achievements.
Michael Rice
doaj +1 more source
2D Abrupt Nano‐Junctions Blending sp–sp2 Bonds on Atomically Precise Heterostructures
Advanced Materials, EarlyView.A lateral heterostructure between atomically precise sp–sp2$^2$ metalated graphdiyne and sp2$^2$ graphene nanoribbons is realized by on‐surface synthesis and investigated by STM and DFT. The impact of on‐surface synthesis byproducts on covalent junction formation yield is unveiled.
Alice Cartoceti +10 more
wiley +1 more source
Convolutionally Coded Hopping Pattern for MFSK Modulation in Underwater Acoustic Communication
IEEE Access, 2019 A convolutionally coded M-ary frequency shift keying (MFSK) modulation scheme for underwater acoustic communication is introduced. It uses a rate 1/log2 M inner convolutional code, whose coded symbols are used as transmission symbols.
Lars M. Wolff, Sabah Badri-Hoeher
doaj +1 more source
Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction
Advanced Materials, EarlyView.A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu +8 more
wiley +1 more source
An EXIT-Chart Aided Design Procedure for Near-Capacity N-Component Parallel Concatenated Codes [PDF]
, 2010 Shannon’s channel capacity specifies the upper bound on the amount of bits per channel use. In this paper, we explicitly demonstrate that twin-component turbo codes suffer from a capacity loss, when the component code rate is less than unity, which is ...
Chen, Hong +5 more
core +1 more source