Results 51 to 60 of about 610 (179)
EURASIP Journal on Wireless Communications and Networking, 2004 Multiple-access interference and interfinger interference limit the capacity of conventional single-carrier DS-CDMA systems. Even though multicarrier CDMA posses the advantages of conventional CDMA and OFDM, it suffers from two major implementation ...
Madhukumar A. S. +3 more
doaj +2 more sources
ETRI JournalWe propose a multicarrier chaotic system that incorporates dual-index and M-ary modulation techniques. The proposed system improves the energy andspectrum efficiencies with a tradeoff in computational complexity.
Bavatharani Gurusamy +2 more
doaj +1 more source
Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.The integration of reconfigurable intelligent surfaces (RIS) into multiple‐input multiple‐output (MIMO) systems offers transformative potential for enhancing spectral efficiency and mitigating channel impairments. However, efficient and accurate channel estimation (CE) remains a critical challenge due to multipath propagation, high dimensionality, and ...
Kevin M. Mwongera +3 more
wiley +1 more source
Performance analysis and simulation of FMT system in the presence of frequency offset
Tongxin xuebao, 2005 Filtered multitone modulation is one of the filter bank modulation techniques. It exhibits significantly lower spectral overlapping between adjacent subchannels.
ZHU Wei-hong +3 more
doaj +2 more sources
Comparing GFDM With OFDM for Use in 6G Communication From a New Perspective
Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.The most important challenges facing 6G communication systems are the large amount of data and low latency as compared to previous generations. Therefore, it has become necessary to use advanced technologies to meet the requirements of 6G wireless communication systems.
Mohammed Azher Therib +2 more
wiley +1 more source
CDMA Transmission with Complex OFDM/OQAM
EURASIP Journal on Wireless Communications and Networking, 2008 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 ...
Lélé Chrislin +3 more
doaj
On the Road to 5G: Comparative Study of Physical Layer in MTC Context
IEEE Access, 2017 During the past few years, we are witnessing the emergence of 5G and its high-level performance targets. Waveform (WF) design is one of the important aspects for 5G that received considerable attention from the research community in recent years. To find
Yahia Medjahdi +11 more
doaj +1 more source
Bit and Power Allocation in Constrained Multicarrier Systems: The Single-User Case
EURASIP Journal on Advances in Signal Processing, 2007 Multicarrier modulation is a powerful transmission technique that provides improved performance in various communication fields. A fundamental topic of multicarrier communication systems is the bit and power loading, which is addressed in this article as
Theodore Antonakopoulos +1 more
doaj +1 more source
Turbo-per-Tone Equalization for ADSL Systems
EURASIP Journal on Advances in Signal Processing, 2005 We study the equalization procedure in discrete multitone (DMT)-based systems, in particular, in DMT-based ADSL systems. Traditionally, equalization is performed in the time domain by means of a channel shortening filter.
Vanhaute Hilde, Moonen Marc
doaj +1 more source
IEEE Open Journal of Power ElectronicsThis paper proposes a general analytical formulation for LCL filter design for grid-connected PWM-driven cascaded H-bridge inverters. The novelty of this work deals with providing some easy-of-use analytical expressions that allow for properly sizing the
Giuseppe Schettino +5 more
doaj +1 more source