Results 181 to 190 of about 20,804 (217)

Antenna selection for MIMO-OFDM systems

Signal Processing, 2008
In this paper, a new subcarrier-by-subcarrier antenna selection scheme for a multiple input multiple output (MIMO) space-frequency block coded (SFBC) orthogonal frequency division multiplexing (OFDM) system concatenated with a turbo product code is presented.
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Broadband MIMO antennas for MIMO radar systems

2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2013
Methods of reducing both electric and magnetic field coupling for enhancing the isolation in broadband MIMO antenna system is presented. The proposed MIMO antenna consists of two coplanar waveguide (CPW) fed self-complementary antennas (SCAs) and a U-shaped slot is etched on the ground plane.
Chan-Chieh Lin, Tzu-Chun Tang, Ken-Huang Lin   +2 more
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MIMO capacity and antenna array design

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005
It is generally accepted that correlation reduces the capacity of the MIMO radio channel. Recently, however, it has been pointed out that several sources of correlation exist. Whereas most often in communications, correlation is interpreted in terms of spatial correlations due to the propagation environment, also the coupling between transmit and ...
Hervé Ndoumbé Mbonjo Mbonjo, Jan Hansen 0001, Volkert Hansen   +2 more
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On the capacity of vector antenna MIMO systems

International Symposium onInformation Theory, 2004. ISIT 2004. Proceedings., 2004
Most wireless communication systems currently employ single- or dual-polarized antennas which measure one or two components of the received electromagnetic (EM) signal. In this paper, we investigate the performance gains achievable by using "vector antennas" that can detect or excite up to six independent degrees of freedom.
Sandeep H. Krishnamurthy, Anand S. Konanur, Gianluca Lazzi, Brian L. Hughes   +3 more
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Compact MIMO antenna

Microwave and Optical Technology Letters, 2016
In this letter, a miniature wide-band 1 × 2 antenna is proposed. The proposed antenna has a wider impedance bandwidth, 70% and small size, 31 × 20 × 1.6 mm3. There is a good isolation between two antennas, below −15 dB in the operating band. A monopole configuration is used to achieve the wide-band response and a mushroom type Electronics Band-gap ...
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2x2 MIMO at Variable Antenna Distances

VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008
Various publications have drawn a precise picture on how correlation and capacity change when decreasing the receive-antenna distance of a 2 x 2 MIMO transmission to less than 0.1 lambda; however, little is known on how today's commonly employed coding schemes actually perform under such harsh conditions.
Sebastian Caban, Christian Mehlführer, Lukas W. Mayer, Markus Rupp   +3 more
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MIMO capacity with antenna selection and interference

2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2004
System capacity is considered for a group of interfering users employing single user detection and antenna selection of multiple transmit and receive antennas for flat Rayleigh fading channels with independent fading coefficients for each path. The case considered is that where there is very limited channel state information (only the selected antennas)
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A Wideband PIFA-Pair-Based MIMO Antenna for 5G Smartphones

IEEE Antennas and Wireless Propagation Letters, 2021
Xiao-Ting Yuan, Zhe Chen, Tianqi Gu
exaly  

AAS – Advanced Antenna System: The MIMO, Massive MIMO, and Beamforming Antennas

2022
José Luiz Frauendorf, Érika Almeida de Souza   +1 more
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MIMO Antenna Systems

2023
Shun-Ping Chen, Heinz Schmiedel
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