Results 41 to 50 of about 2,215 (138)

Design of COFDM Transceiver Using VHDL

International Journal of Computer Applications, 2010
ABSTRACT OFDM is combined with channel coding scheme i.e. FEC (Forward Error Correction) called CODED OFDM or COFDM is especially suitable for high speed environment because it provides data transfer at higher speed with reliable transmission. Main focus of this paper is to design COFDM transceiver which operates with FEC, scrambling, block interleaver
Hemant Kumar Sharma, Sanjay P. Sood, Balwinder Singh   +2 more
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Tecnología de Radio Digital

Prisma Tecnológico, 2009
Este artículo se concentra en las tecnologías de radio digital, las cuales han tenido un mayor desarrollo en los últimos años debido a la tendencia global de adoptar las nuevas tecnologías digitales en radio y comunicaciones. Tiene aplicaciones tanto en
Ana Lorena Velásquez, Edwin Mudarra
doaj  

A Detailed Study of Channel Estimation and BER Optimization in presence of AWGN and Rayleigh Channel of OFDM System [PDF]

, 2018
Orthogonal Frequency Division Multiplexing is an important one field communication and that uses parallel information series. Contrast and single carrier adjustment are basic aspects of this technique where OFDM has many favourable circumstances are ...
Santosh, S. (Santosh), Vyas, P. (Piyush)
core   +1 more source

SoC for COFDM Wireless Communications: Challenges and Opportunities [PDF]

2006 International Symposium on VLSI Design, Automation and Test, 2006
Coded Orthogonal Frequency Division Multiplexing (COFDM) technology has been widely accepted in many communication systems due to both bandwidth efficiency and robustness to channel distortion. This opens a great of opportunities for SoC society to deal with design complexity by exploiting benefits of giga-scale integration.
Chen-yi Lee, Hsuan-yu Liu, Chien-ching Lin   +2 more
openaire   +1 more source

Coverage analysis of coded orthogonal frequency division multiplexing (C-OFDM) based high speed railways (HSR) networks under different propagation scenarios

e-Prime: Advances in Electrical Engineering, Electronics and Energy
In this research work, investigation of percentage of coverage area is performed for coded OFDM (COFDM) based high-speed railways (HSR) communication networks. Different HSR scenarios such as viaduct, rural, suburban, urban and cutting etc.
Chaudhuri Manoj Kumar Swain
doaj   +1 more source

Performance evaluation of channel estimation techniques for MIMO-OFDM systems with adaptive sub-carrier allocation [PDF]

, 2006
Dynamic Sub-Carrier Allocation (DSA) strategies have been shown previously to achieve significant performance benefits when applied to OFDMA systems and further benefits for MIMOOFDMA systems.
Armour, SMD, McGeehan, JP, Peng, Y
core   +2 more sources

Digital Television: Has the Revolution Stalled? [PDF]

, 2001
When digital television technology first hit the scene it garnered great excitement, with its promise of movie theater picture and sound on a fraction of the bandwidth of analog.
Futch, Aaron, Giwa, Yemi, Mlela, Kisa, Richardson, Amy, Simonyuk, Yelena   +4 more
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Estudio y análisis de sistemas para la radiodifusión de audio digital [PDF]

, 2012
El objetivo principal de este TFG es el análisis y estudio de un sistema DAB. Se estudiarán los cuatro elementos principales que permiten que la transmisión de la información sea solvente.
Melo Miñana, Borja
core  

Kajian Dan Simulasi Prinsip Kerja Coded Orthogonal Frequency Division Multiplexing Untuk Sistem Transmisi Radio Over Fibe [PDF]

, 2017
Untuk memenuhi kebutuhan informasi pita lebar yang semakin tinggi, teknologi serat optik adalah solusi yang paling tepat. Keunggulan ini berkaitan dengan teknologi serat optik yang mempunyai gelombang pembawa berupa gelombang optik dengan frekuensi ...
Calvinus, Y. (Yohanes), Lynn, R. (Raissa)   +1 more
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