An effective hybrid approach for PAPR reduction in MIMO-OFDM
Sign Up to like & getrecommendations! Published in 2019 at "Analog Integrated Circuits and Signal Processing"
DOI: 10.1007/s10470-019-01475-1
Abstract: Multi-input multi-output (MIMO) frameworks in blend with orthogonal frequency division multiplexing (OFDM) have drawn huge consideration for the next generation broadband multimedia applications because of their capability of giving high information rate, robustness to fading… read more here.
Keywords: papr; approach; reduce papr; mimo ofdm ... See more keywords
MMSE-based-filter and artificial noise design for MIMO–OFDM systems
Sign Up to like & getrecommendations! Published in 2019 at "Wireless Networks"
DOI: 10.1007/s11276-017-1572-4
Abstract: Physical layer security is a crucial issue in wireless networks to prevent legitimate communication from eavesdropping. This paper investigates the physical layer security of a wireless multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) communication… read more here.
Keywords: mimo; system; mmse based; based filter ... See more keywords
Preventing Eavesdropper by Artificial Noise in MIMO-OFDM Systems
Sign Up to like & getrecommendations! Published in 2018 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4808-9
Abstract: The PHY security has been the focus of the researchers since the day it was proposed. The researchers have mentioned many kinds of methods to prevent the eavesdropper from overhearing the confidential signal in different… read more here.
Keywords: mimo; preventing eavesdropper; scheme; artificial noise ... See more keywords
MIMO-OFDM Energy Efficient Cognitive System with Intelligent Anti-jam Capability
Sign Up to like & getrecommendations! Published in 2018 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4975-8
Abstract: Today’s wireless communication systems are highly susceptible to malicious jamming attacks and interference signals. These attacks are sent via communication link at the same frequency as the intended signal. The sent information is thus corrupted… read more here.
Keywords: efficient cognitive; system; energy efficient; energy ... See more keywords
Pilot Assisted MIMO-OFDM-IM Design for Time-Varying Underwater Acoustic Communications
Sign Up to like & getrecommendations! Published in 2021 at "Wireless Personal Communications"
DOI: 10.1007/s11277-021-08642-6
Abstract: This paper proposes a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing-index modulation (OFDM-IM) design for underwater acoustic communications. The proposed MIMO-OFDM-IM utilizes an equally spaced known data (pilot subcarriers). This feature assists in overcoming different… read more here.
Keywords: acoustic communications; time varying; pilot; ofdm design ... See more keywords
Experimental demonstration of MIMO-OFDM underwater wireless optical communication
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.07.051
Abstract: Abstract In this paper, we propose and experimentally demonstrate a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) underwater wireless optical communication (UWOC) system, with a gross bit rate of 33.691 Mb/s over a 2-m water… read more here.
Keywords: wireless optical; ofdm underwater; optical communication; underwater wireless ... See more keywords
Experimental Study of MIMO-OFDM Transmissions at 94 GHz in Indoor Environments
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Access"
DOI: 10.1109/access.2017.2691402
Abstract: Millimeter wave (mm-wave) frequencies have been proposed to achieve high capacity in 5G communications. Although meaningful research on the channel characteristics has been performed in the 28-, 38-, and 60-GHz bands in both indoor and… read more here.
Keywords: experimental study; transmissions ghz; study; study mimo ... See more keywords
Performance Analysis of Nonlinear SFBC OFDM Systems Over TWDP Fading Channel
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2927753
Abstract: In this paper, the practical performance of space-frequency block code (SFBC)-based multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system in the presence of nonlinear power amplifier with imperfect channel state information (CSI) over two-wave… read more here.
Keywords: performance; performance analysis; mimo ofdm; analysis ... See more keywords
Kalman Filter Channel Estimation in 2 × 2 and 4 × 4 STBC MIMO-OFDM Systems
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3027377
Abstract: Channel estimation is a challenging problem for space time block coding (STBC) multiple-input and multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems in dynamic environments. To handle this problem and improve the system performance, this paper… read more here.
Keywords: stbc mimo; channel estimation; ofdm systems; mimo ofdm ... See more keywords
Fronthaul Optical Links Using Sub-Nyquist Sampling Rate ADC for B5G/6G Sub-THz Ma-MIMO Beamforming
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2021.3133532
Abstract: This paper details fronthaul optical links using sub-Nyquist sampling rate analog-to-digital converters (ADCs) for Beyond fifth generation (B5G) and 6G sub-THz massive multiple-input multiple-output (Ma-MIMO) beamforming. Unlike Common Public Radio Interface (CPRI) using high speed… read more here.
Keywords: nyquist sampling; rate; sampling rate; mimo ofdm ... See more keywords
PAPR Reduction in MIMO-OFDM via Power Efficient Transmit Waveform Shaping
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3172325
Abstract: In this paper we revisit the long standing problem of peak-to-average power ratio minimization in MIMO-OFDM systems, with a new angle of approach on a well-known scheme. Utilizing the principles of tone reservation, we place… read more here.
Keywords: papr reduction; papr; power; mimo ofdm ... See more keywords