Results 11 to 20 of about 11,208 (180)
PAPR Reduction of Multicarrier Faster-Than-Nyquist Signals With Partial Transmit Sequence
IEEE Access, 2017 Multicarrier faster-than-Nyquist (MFTN) signaling is a spectral efficient transmission scheme for future communication systems. Similar as general multicarrier signals, the high peak-to-average power ratio (PAPR) is also one of the main drawbacks of MFTN
Siming Peng +3 more
doaj +1 more source
Performance Evaluation of Low Density Spreading Multiple Access [PDF]
, 2012 In this paper, we evaluate the performance of Multicarrier-Low Density Spreading Multiple Access (MC-LDSMA) as a multiple access technique for mobile communication systems. The MC-LDSMA technique is compared with current multiple access techniques, OFDMA
AL-Imari, Mohammed +3 more
core +1 more source
Suboptimal greedy power allocation schemes for discrete bit loading [PDF]
, 2013 In this paper we consider low cost discrete bit loading based on greedy power allocation (GPA) under the constraints of total transmit power budget, target BER, and maximum permissible QAM modulation order.
Alhanafy, Waleed Eid Abdelrahman +1 more
core +3 more sources
IEEE Access, 2018 Multicarrier faster-than-Nyquist (MFTN) is a spectral efficient transmission scheme for future communication systems. However, as one of the most important drawbacks of multicarrier transmission systems, the peak-to-average power ratio (PAPR) of MFTN ...
Aijun Liu +5 more
doaj +1 more source
Discrete rate maximisation power allocation with enhanced BER [PDF]
, 2012 This study aims to maximise the rate over a multiple-in multiple-out (MIMO) link using incremental power and bit allocation. Two different schemes, greedy power allocation (GPA) and greedy bit allocation (GBA), are addressed and compared with the ...
Alhanafy, Waleed Eid Abdelrahman +1 more
core +1 more source
Packet Format Design and Decision Directed Tracking Methods for Filter Bank Multicarrier Systems
EURASIP Journal on Advances in Signal Processing, 2010 Packetized data transmission is commonly used in wireless communication systems. Each packet starts with a preamble which is used to synchronize the receiver with carrier frequency of the incoming signal, to find a good timing phase, and to identify the ...
Peiman Amini, Behrouz Farhang-Boroujeny
doaj +2 more sources
Conjugate root offset-QAM for orthogonal multicarrier transmission [PDF]
EURASIP Journal on Advances in Signal Processing, 2016 Current implementations of OFDM/OQAM are restricted to band-limited symmetric filters. To circumvent this, non-symmetric conjugate root (CR) filters are proposed for OQAM modulation. The system is applied to Generalized Frequency Division Multiplexing (GFDM) and a method for achieving transmit diversity with OQAM modulation is presented.
Matthé, Maximilian, Fettweis, Gerhard
openaire +2 more sources
Convolutional Code Based PAPR Reduction Scheme for Multicarrier Transmission with Higher Number of Subcarriers [PDF]
Mehran University Research Journal of Engineering and Technology, 2017 Multicarrier transmission technique has become a prominent transmission technique in high-speed wireless communication systems. It is due to its frequency diversity,small inter-symbol interference in the multipath fading channel, simple equalizer ...
SAJJAD ALIMEMON +2 more
doaj
Multicarrier transmission using quadrature frequency/phasemodulation
Electronics Letters, 1996 Multicarrier (MC) systems using quadrature frequency and phase modulation (QFPM) schemes called MC-QFPM are described. In MC-QFPM systems, the power efficiency and resistance to delay spread can be increased for the price of reduced bandwidth efficiency. M-ary orthogonal frequency-shift-keying with M = 1, 2 and 4 are considered along with MC modulation.
Hüseyin, Bilgekul, Amca, Hasan
openaire +3 more sources
Low-complexity LSMR equalisation of FrFT-based multicarrier systems in doubly dispersive channels [PDF]
, 2011 The discrete fractional Fourier transform (FrFT) has been suggested to enhance performance over DFT-based multicarrier systems when transmitting over doubly-dispersive channels.
Solyman, Ahmed +2 more
core +1 more source