Results 1 to 10 of about 2,215 (138)
Simulation and Measurement of the Transmission Distortions of the Digital Television DVB-T/H (Part 1: Modulator for Digital Terrestrial Television) [PDF]
Radioengineering, 2010 The paper deals with the first part of results of the Czech Science Foundation research project that was aimed into the simulation and measurement of the transmission distortions of the digital terrestrial television according to DVB-T/H standards.
R. Stukavec, T. Kratochvil
doaj +3 more sources
Irreducible BER of COFDM on an IIR channel
Electronics Letters, 1996 The author considers the performance of coded orthogonal frequency division multiplexing (COFDM) on an infinite impulse response channel, and gives equations for intersymbol and interchannel interference (ISI and ICI). The trade-off between code rate and guard period length is considered, and it is shown that for optimum results both coding and a guard
exaly +2 more sources
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 This work presents the design of a 12 Mb/s Coded Orthogonal Frequency Division Multiplexing (COFDM) baseband processor for the standard IEEE 802.11a. The COFDM baseband processor was designed by using ourdesigned circuits for carrier phase correction ...
Alexander López Parrado +2 more
doaj +3 more sources
Visible Light Communication: An Investigation of LED Non-Linearity Effects on VLC Utilising C-OFDM
Photonics, 2022 The electro-optic output of light-emitting diodes commonly used in visible light communication systems is generally nonlinear in nature. It is particularly problematic when using advanced modulation formats, such as orthogonal frequency-division ...
Jummah Abdulwali, Said Boussakta
doaj +1 more source
A comparison of multi-carrier OFDM and single carrier iterative equalisation for future high performance wireless local area networks [PDF]
, 2002 There has been a strong trend towards the specification of multi-carrier coded orthogonal frequency division multiplexing (COFDM) in the physical layer of emerging high performance wireless local area networks (WLAN).
Lillie, AG +3 more
core +2 more sources
Visión Antataura, 2020 La planificación de las ubicaciones de los transmisores de televisión digital en el formato DVB-T, por parte de los proveedores de servicio de televisión abierta debe asegurar la cobertura apropiada en un área específica, y los usuarios recibir la ...
Fermín A. Póvaz J, Jenny I. Ríos Z
doaj +1 more source
Use of linear transverse equalisers and channel state information in combined OFDM-equalisation [PDF]
, 2000 The efficiency of a Coded Orthogonal Frequency Division Multiplexing (COFDM) receiver can be improved by use of a Pre-FFT equaliser (PFE). This technique is known as combined OFDM-equalisation.
Armour, SMD, Bull, David, Nix, AR
core +2 more sources
Performance evaluation of carrier interferometry implementations of MC-CDMA over a wideband channel suffering phase noise [PDF]
, 2005 In this paper the performance of Carrier Interferometry (CI) and Pseudo-Orthogonal Carrier Interferometry (PO-CI) [1] implementations of Multi-Carrier Code Division Multiple Access (MC-CDMA) are investigated.
Armour, SMD +3 more
core +2 more sources
Orthogonal frequency-division multiplexing in wireless communication systems with multimode fiber feeds [PDF]
, 2001 The feasibility of using multimode fiber as an inexpensive cell feed in broad-band indoor picocellular systems is investigated in this paper. The performance of coded orthogonal frequency-division multiplexing (OFDM) for a variety of multimode fiber ...
Dixon, B.J., Iezekiel, S., Pollard, R.D.
core +1 more source
Journal of Computer Science, Information Technology and Telecommunication Engineering, 2023 This article compares the performance of two modulation techniques—quadrature phase shift keying (QPSK) and M-ary quadrature amplitude modulation (M-QAM) with M=8, 16, 32, and 64—in a coded orthogonal frequency division multiplexing system. As an error-correcting code, convolutional technology is employed.
openaire +3 more sources