Results 61 to 70 of about 15,939 (189)
Journal of Electrical and Computer Engineering, 2013 MIMO OFDM is a very promising technique for future wireless communication systems. By applying direct conversion architecture, low-cost, low-power, small size, and flexible implementation of MIMO OFDM systems can be realized.
Jian Luo +2 more
doaj +1 more source
Optical MIMO-OFDM with Generalized LED Index Modulation [PDF]
IEEE Transactions on Communications, 2017 Visible light communications (VLC) is a promising and uncharted new technology for the next generation of wireless communication systems. This paper proposes a novel generalized light emitting diode (LED) index modulation method for multiple-input-multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM)-based VLC systems.
Anil Yesilkaya +5 more
openaire +3 more sources
Fine‐grained multi‐path channel estimation and matched reception by single metasurface antenna
IET Communications, Volume 19, Issue 1, January/December 2025.This paper investigates methods to enhance antenna's channel information extraction capabilities in wireless communications, particularly in challenging multi‐path environments. Focusing on the issues of channel information loss due to multi‐path superposition at the receiver and multi‐path fading during wireless channel propagation, this paper ...
Yinuo Hao, Liang Jin, Shuaifang Xiao
wiley +1 more source
MMSE‐based passive beamforming for reconfigurable intelligent surface aided millimeter wave MIMO
IET Communications, Volume 19, Issue 1, January/December 2025.Passive beamforming at reconfigurable intelligent surface (RIS) in RIS‐aided millimeter wave multiple‐input multiple‐output (mmWave MIMO) is designed together with precoder and combiner through joint optimization problem to minimize the mean square error between the transmit signal and the estimate of signal at the receiver. The optimization problem is
Prabhat Raj Gautam +2 more
wiley +1 more source
PERBANDINGAN PERFORMANSI SISTEM MC-SS MIMO DENGAN OFDM MIMO
Majalah Ilmiah Teknologi Elektro, 2016 The combination of the system has been doing to improve the reliability of wireless communication. One parameter that indicates the reliability of wireless communication is to reduce the value of BER.
Ni Putu Eka Apsari Yuniari +2 more
doaj
BER performance analysis of OFDM-MIMO system using GNU Radio
MATEC Web of Conferences, 2016 Multiple Input Multiple Output (MIMO) channels can be used to increase the data rate and the channel capacity by employing multiple transmitting and receiving antennas at both the ends of a wireless communication system.
Singh M.Ushamahesh +2 more
doaj +1 more source
IEEE Access, 2019 Not only to reduce the candidates but also to maintain detection performance in multiple-input multiple-output (MIMO) detection, an adaptive overlapped cluster (AOC) scheme to balance detection error and computing cost is built for 4 × 4 and 8 ...
Yuan-Te Liao, Terng-Yin Hsu
doaj +1 more source
MIMO Transmission with Residual Transmit-RF Impairments
, 2010 Physical transceiver implementations for multiple-input multiple-output (MIMO) wireless communication systems suffer from transmit-RF (Tx-RF) impairments. In this paper, we study the effect on channel capacity and error-rate performance of residual Tx-RF
Burg, Andreas +2 more
core +1 more source
Enabling VLSI Processing Blocks for MIMO‐OFDM Communications [PDF]
VLSI Design, 2008 Multi‐input multi‐output (MIMO) systems combined with orthogonal frequency‐division multiplexing (OFDM) gained a wide popularity in wireless applications due to the potential of providing increased channel capacity and robustness against multipath fading channels.
BARBARA CERATO +2 more
openaire +3 more sources
A squeeze‐and‐excitation network for SNR estimation of communication signals
IET Communications, Volume 19, Issue 1, January/December 2025.This paper presents a novel deep learning approach that uses a power spectrum generated through overlapping segmentation as input to a neural network for SNR estimation. The performance of SNR estimation has been enhanced by integrating an augmented squeeze‐and‐excitation (SE) attention mechanism with a residual block fusion module, employing multiple ...
Deming Hu +4 more
wiley +1 more source