Results 61 to 70 of about 235,653 (168)

Efficient LDPC Code Design based on Genetic Algorithm for IoT Applications

EAI Endorsed Transactions on Industrial Networks and Intelligent Systems
In this paper, we propose a low-density parity check (LDPC) code design scheme that improves the performance of the existing genetic algorithm-based LDPC scheme. In particular, we enhance the performance of the LDPC code by removing the girth-4 property
Thanh-Loc Nguyen-Van, Tan Do Duy, Thien Huynh-The   +2 more
doaj   +1 more source

Minimum BER Receiver Filters with Block Memory for Uplink DS-CDMA Systems

EURASIP Journal on Wireless Communications and Networking, 2008
The problem of synchronous multiuser receiver design in the case of direct-sequence single-antenna code division multiple access (DS-CDMA) uplink networks is studied over frequency selective fading channels.
Mérouane Debbah, Are Hjørungnes   +1 more
doaj   +1 more source

PAPR Reduction Performance by Active Constellation Extension for Diversity MIMO-OFDM Systems

Journal of Electrical and Computer Engineering, 2010
The V-BLAST wireless communication architecture, space-time block code (STBC), and space-frequency block code (SFBC) techniques are strong candidates for achieving very high data rates in 4G broadband wireless communications.
Theodoros Tsiligkaridis, Douglas L. Jones   +1 more
doaj   +1 more source

Weighted coordinates poset block codes

Discrete Mathematics, Algorithms and Applications
This paper defines a new metric called weighted coordinates poset block metric [Formula: see text]-metric). This metric generalizes the weighted coordinates poset metric ([Formula: see text]-metric) introduced by Panek and Pinheiro, and the poset block metric ([Formula: see text]-metric) defined by Alves et al. A Singleton bound for [Formula: see text]
Atul Kumar Shriwastva, R. S. Selvaraj
openaire   +2 more sources

Industrial Metaverse and Technical Diagnosis of Electric Drive Systems

Applied Sciences
This article presents a part of the industrial metaverse for electric drive system diagnostics. The advantages of using a low-code/no-code platform for electric drive systems diagnostics are demonstrated.
Natalia Koteleva, Nikolay Korolev, Margarita Kovalchuk   +2 more
doaj   +1 more source

Rateless Space Time Block Code for Massive MIMO Systems

International Journal of Antennas and Propagation, 2014
This paper presents a rateless space time block code (RSTBC) for massive MIMO systems. The paper illustrates the basis of rateless space time codes deployments in massive MIMO transmissions over wireless erasure channels.
Ali H. Alqahtani, Ahmed Iyanda Sulyman, Abdulhameed Alsanie   +2 more
doaj   +1 more source

Channel Estimation in Uplink SCMA System

Известия высших учебных заведений России: Радиоэлектроника, 2016
The effect of channel estimation error on bit error probability of uncoded and coded sparse code multiple access (SCMA) system in uplink channel with block fading is considered.
A. B. Sergienko, V. P. Klimentjev
doaj  

CURRENT STATE ANALYSIS OF AUTOMATIC BLOCK SYSTEM DEVICES, METHODS OF ITS SERVICE AND MONITORING

Nauka ta progres transportu, 2014
Purpose. Development of formalized description of automatic block system of numerical code based on the analysis of characteristic failures of automatic block system and procedure of its maintenance. Methodology.
A. M. Beznarytnyy, V. I. Gavrilyuk, O. O. Gololobova   +2 more
doaj  

An algorithm for space-time block code classification using higher-order statistics (HOS). [PDF]

Springerplus, 2016
Yan W, Zhang L, Ling Q.
europepmc   +1 more source

Research on Design of Extending Orthogonal Space-Time Block Code

Dianxin kexue, 2013
For the problem that complex orthogonal design of space-time coding cannot reach full speed and full diversity when the transmitting antenna number is greater than two, two kinds of improved schemes for the closed loop EOSTBC were proposed, which used ...
Adan Ding, Fei Long, Zhuoyue Li
doaj