Results 41 to 50 of about 57,027 (186)

Haberleşme Sistemlerinde Turbo Kodlama ve Turbo İlkesinin Bazı Pratik Uygulamaları

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2014
söz etmiştir. Shannon, veri iletim hızı içi teorik bir sınır tanımlamış ve Shannon’dan günümüze kadar bu sınıra yaklaşma çabaları sürmüştür. Shannon’dan sonra çok sayıda etkin kodlama ve kod çözme teknikleri bulunmuş olmasına rağmen, 90’lı yılların ...
Selman KULAÇ, Murat Hüsnü SAZLI
doaj  

Performance Evaluation of Linear Turbo-Receivers Using Analytical Extrinsic Information Transfer Functions

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Turbo-receivers reduce the effect of the interference-limited propagation channels through the iterative exchange of information between the front-end receiver and the channel decoder.
Leszek Szczeciński   +1 more
doaj   +1 more source

Energy-efficient wireless communication for mobile multimedia terminals [PDF]

open access: yes, 2003
This paper presents a control system that adapts a WCDMA receiver at run-time to minimize the energy consumption while providing an adequate Quality of Service (QoS).
Hurink, Johann L.   +2 more
core   +3 more sources

Performance Analysis of Turbo Codes

open access: yesCommunications, 2013
The article focuses on the performance analyses of Turbo Codes. These codes belong to the group of error correction codes. By their use, it is possible to achieve high system performance.
Jakub Sedy   +3 more
doaj   +1 more source

Iterative Multiuser Minimum Symbol Error Rate Beamforming Aided QAM Receiver

open access: yes, 2008
A novel iterative soft interference cancellation (SIC) aided beamforming receiver is developed for high-throughput quadrature amplitude modulation systems.
Chen, Sheng, Hanzo, L., Tan, S.
core   +1 more source

Exploiting Cyclic Prefix for Turbo-OFDM Receiver Design

open access: yesIEEE Access, 2017
In an orthogonal frequency division multiplexing (OFDM) system, the cyclic prefix (CP) has traditionally been not useful for data detection at the receiver.
Lu Xu   +3 more
doaj   +1 more source

ON THE PRINCIPLES OF MATTER MOTION IN SPACE AND TIME [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists), 2009
One reconsiders the well-known principles of matter motion in space and time, retaining for the inertia principle the name of motion conservation principle and introducing a new principle of the space treble entity, that explain the composition and ...
Mircea Dimitrie CAZACU
doaj  

Using gudermannian to improve the turbo-code mathematical principles in 3g communication systems

open access: yes2013 International Siberian Conference on Control and Communications (SIBCON), 2013
This paper discusses the promising modern turbo-codes in the concept of 3rd generation communication systems. Presents the extended mathematical principles of the algebra logarithm of the likelihood function for N statistically independent information bits with the transition to trigonometric and hyperbolic functions by using Gudermannian expression ...
Romanyuk, O. N.   +2 more
openaire   +2 more sources

Multi-level Turbo Decoding Assisted Soft Combining Aided Hybrid ARQ [PDF]

open access: yes, 2010
Hybrid Automatic Repeat reQuest (ARQ) plays an essential role in error control. Combining the incorrectly received packet replicas in hybrid ARQ has been shown to reduce the resultant error probability, while improving the achievable throughput.
Chen, Hong   +2 more
core   +1 more source

SVD-Aided Power Allocation and Iterative Detection Scheme for Turbo-BLAST System with Imperfect Channel State Information

open access: yesInternational Journal of Antennas and Propagation, 2011
A new technique that combines adaptive power allocation and iterative detection based on singular value decomposition (SVD) is introduced for the modified Turbo-BLAST system with imperfect channel state information (I-CSI).
Xiaomin Chen, Xiangbin Yu, Dazhuan Xu
doaj   +1 more source

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