Results 121 to 130 of about 983,366 (358)

Spatially Coupled Codes with Sub-Block Locality: Joint Finite Length-Asymptotic Design Approach [PDF]

open access: yesarXiv, 2020
SC-LDPC codes with sub-block locality can be decoded locally at the level of sub-blocks that are much smaller than the full code block, thus providing fast access to the coded information. The same code can also be decoded globally using the entire code block, for increased data reliability.
arxiv  

Elasticity of Diametrically Compressed Microfabricated Woodpile Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Modulus–porosity relationship is derived for woodpile lattices with struts under diametrical compression. The formula presented here that Young's modulus is proportional to the square of the volume fraction E˜ρ2$E \sim \left(\rho\right)^{2}$ is shown to be consistent with computations and laboratory experiments on 3D‐printed samples.
Faezeh Shalchy, Atul Bhaskar
wiley   +1 more source

A Novel Diversity Receiver Design for Cooperative Transmission System

open access: yesIEEE Access, 2018
In this paper, we consider the performance of an amplify-and-forward relaying-based multiple-input multiple-output space-time-block-coded cooperative communication system.
Jing Gao, Yinghui Zhang, Yang Liu
doaj   +1 more source

Optimal space-time codes for the MIMO amplify-and-forward cooperative channel

open access: yes, 2006
In this work, we extend the non-orthogonal amplify-and-forward (NAF) cooperative diversity scheme to the MIMO channel. A family of space-time block codes for a half-duplex MIMO NAF fading cooperative channel with N relays is constructed.
Belfiore, Jean-Claude, Yang, Sheng
core   +5 more sources

New Lower Bounds for Permutation Codes using Linear Block Codes [PDF]

open access: yesarXiv, 2019
In this paper we prove new lower bounds for the maximal size of permutation codes by connecting the theory of permutation codes with the theory of linear block codes. More specifically, using the columns of a parity check matrix of an $[n,k,d]_q$ linear block code, we are able to prove the existence of a permutation code in the symmetric group of ...
arxiv  

Space-Time Block Coding For Noncoherently Detected Cpfsk

open access: yes, 2006
Publication in the conference proceedings of EUSIPCO, Florence, Italy ...
Pancaldi F., Vitetta G. M.
openaire   +3 more sources

A Novel Digitalization Approach for Smart Materials – Ontology‐Based Access to Data and Models

open access: yesAdvanced Engineering Materials, EarlyView.
In order to access heterogeneous material data and model‐based knowledge, the established ontology‐based data access (OBDA) is extended to include material models. This novel ontology‐based data and model access (OBDMA) enables the computation of new responses beyond stored data.
Jürgen Maas   +15 more
wiley   +1 more source

Unified OSTBC-based communication scheme for cooperative space vehicles

open access: yesThe Journal of Engineering, 2019
In many spatial cooperative vehicle networks, omni-directional communication is preferred due to its flexibility for networking. In the recent studies, space time code was shown to be an effective approach for improving the performance of the omni ...
Jian Geng   +4 more
doaj   +1 more source

On the ergodic sum-rate performance of CDD in multi-user systems

open access: yes, 2007
The main focus of space-time coding design and analysis for MIMO systems has been so far focused on single-user systems. For single-user systems, transmit diversity schemes suffer a loss in spectral efficiency if the receiver is equipped with more than ...
Charafeddine, Mohamad   +2 more
core   +1 more source

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