Results 11 to 20 of about 637,226 (201)
Detection and Coding Techniques for Fourth Generation Air-Interfaces based on Multicarrier Modulation [PDF]
, 2007 This thesis investigates a number of multiple-access, multiuser detection (MUD) and channel coding methods for the downlink of 4G wireless systems based on multicarrier modulation.
Awad, Akram
core +6 more sources
Greedy power allocation for multicarrier systems with reduced complexity [PDF]
, 2010 In this paper we consider a reduced complexity discrete bit loading for Multicarrier systems based on the greedy power allocation (GPA) under the constraints of transmit power budget, target BER, and maximum permissible QAM modulation order.
Al-Hanafy, Waleed, Weiss, S.
core +4 more sources
MIMO precoding for filter bank modulation systems based on PSVD [PDF]
, 2011 In this paper we consider the design of a linearly precoded MIMO transceiver based on filter bank (FB) modulation for transmission over broadband frequency selective fading channels.
Moret, Nicola +2 more
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Chirp-based multicarrier modulation [PDF]
, 2012 In this paper we demonstrate that in doubly-dispersive environments, a multicarrier (MC) system based on a fractional Fourier transform (FrFT) can achieve a better concentration of power near the main diagonal of the equivalent channel matrix compared to
Weiss, Stephan +2 more
core +3 more sources
Performance evaluation of PAPR reduction in FBMC system using nonlinear companding transform
ICT Express, 2019 Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) is one of the best waveforms used in 5G communications. The FBMC is a multicarrier modulation system (MCM) which suffers from high peak to average power ratio (PAPR) causing
Imad A. Shaheen +3 more
doaj +1 more source
A Unified Multicarrier Modulation Framework
CoRR, 2016 Orthogonal frequency division multiplexing (OFDM) has been recently recognized as inadequate to meet the increased requirements of the next generation of communication systems. A number of alternative modulation solutions, based on the use of filter banks, have thus been proposed and are currently being considered as candidate waveforms for the ...
Konstantinos N. Maliatsos +2 more
openaire +3 more sources
Frame design for 5G multicarrier modulations [PDF]
2015 International Wireless Communications and Mobile Computing Conference (IWCMC), 2015 Orthogonal Frequency Division Multiplexing (OFDM) transmission technique has been considered for the 4G LTE-Advanced system because of its high performance and low complexity. In the new 5G scenario this type of modulation is not properly suited because of the additional requirements for very high spectral efficiency, low latency and low out-of-band ...
MOROSI, SIMONE +4 more
openaire +1 more source
Differential space-time modulation schemes for smart antenna aided generalized multicarrier DS-CDMA systems [PDF]
, 2006 —Differential space-time modulation (DSTM) schemes were proposed for detection without any knowledge of the Channel State Information (CSI), which is an attractive feature in the presence of fast fading channels, where accurate channel estimation is a ...
Lie-Liang Yang +5 more
core +2 more sources
CDMA Transmission with Complex OFDM/OQAM
EURASIP Journal on Wireless Communications and Networking, 2007 We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced ...
Chrislin Lélé +3 more
doaj +1 more source
Adaptive redundant residue number system coded multicarrier modulation
, 2000 The novel class of nonbinary maximum minimum distance redundant residue number system (RRNS) codes is invoked in the context of adaptively RRNS coded, symbol-by-symbol adaptive multicarrier modulation, in order to combat the effects of frequency ...
Liew, T.H., Keller, T., Hanzo, L.
core +1 more source