scholarly journals Novel Base Station MIMO Antennas with Enhanced Spectral Efficiencies Using Angular Reuse

2015 ◽  
Vol 2015 ◽  
pp. 1-7
Author(s):  
Miguel Mora-Andreu ◽  
David A. Sánchez-Hernández
Keyword(s):  
Antenna Array ◽  
Spatial Diversity ◽  
Base Station ◽  
Polarization Diversity ◽  
The Novel ◽  
Mimo Antenna ◽  
Mimo Antennas ◽  
Base Station Antennas ◽  
Array Performance ◽  
Diversity Technique

The true polarization diversity (TPD) technique is combined with the spatial diversity technique in novel MIMO antenna array geometries with a large number of elements. The use of a large number of elements requires some angular reuse within the array for polarization diversity. With designs compatible with existing base station antenna array configurations, the novel geometries with combining diversity schemes are shown to be able to achieve near the maximum spectral efficiencies. True polarization diversity (TPD) schemes are found to be an excellent complement to more conventional spatial diversity schemes for obtaining optimum MIMO array performance in base station antennas.

scholarly journals High Isolation and Ideal Correlation Using Spatial Diversity in a Compact MIMO Antenna for Fifth-Generation Applications

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Doae El Hadri ◽  
Alia Zakriti ◽  
Asmaa Zugari ◽  
Mohssine El Ouahabi ◽  
Jamal El Aoufi
Keyword(s):  
Multiple Input Multiple Output ◽  
Spatial Diversity ◽  
Mimo Antenna ◽  
Mimo Antennas ◽  
High Isolation ◽  
Fifth Generation ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Diversity Technique ◽  
Good Agreement

This paper presents a compact Multiple Input Multiple Output antenna with high isolation and low envelope correlation (ECC) for fifth-generation applications using spatial diversity technique. The proposed MIMO antenna consists of two single antennas, each having size of 13 × 12.8 mm2, symmetrically arranged next to each other. The single and MIMO antennas are simulated and analyzed. To verify the simulated results, the prototype antennas were fabricated and measured. A good agreement between measurements and simulations is obtained. The proposed antenna covers the 28 GHz band (27.5–28.35 GHz) allocated by the FCC for 5G applications. Moreover, the isolation is more than 35 dB and the ECC is less than 0.0004 at the operating band, which means that the mutual coupling between the two elements is negligible. The MIMO parameters, such as diversity gain (DG), total active reflection coefficient (TARC), realized gain, and efficiency, are also studied. Thus, the results demonstrate that our antenna is suitable for 5G MIMO applications.

scholarly journals Integration of 5G Rectangular MIMO Antenna Array and GSM Antenna for Dual-Band Base Station Applications

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 63175-63187
Author(s):  
Yufeng Zhu ◽  
Yikai Chen ◽  
Shiwen Yang
Keyword(s):  
Antenna Array ◽  
Base Station ◽  
Dual Band ◽  
Mimo Antenna

scholarly journals MIMO Antenna Array Design with Polynomial Factorization

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Wen-Qin Wang ◽  
Huaizong Shao ◽  
Jingye Cai
Keyword(s):  
Antenna Array ◽  
Degrees Of Freedom ◽  
Multiple Input Multiple Output ◽  
Factorization Method ◽  
Polynomial Factorization ◽  
Mimo Antenna ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Simulation Results ◽  
Array Performance

One of the main advantages of multiple-input multiple-output (MIMO) antenna is that the degrees-of-freedom can be significantly increased by the concept of virtual antenna array, and thus the MIMO antenna array should be carefully designed to fully utilize the virtual antenna array. In this paper, we design the MIMO antenna array with the polynomial factorization method. For a desired virtual antenna array, the polynomial factorization method can optimally design the specified MIMO transmitter and receiver. The array performance is examined by analyzing the degrees-of-freedom and statistical output signal-to-interference-plus-noise ratio (SINR) performance. Design examples and simulation results are provided.

scholarly journals Achievable Capacity with Spatial Channel Correlation in Massive MIMO Multi-Cell Systems

2020 ◽  
Vol 9 (4) ◽  
pp. 15-20
Keyword(s):  
Large Scale ◽  
High Capacity ◽  
Antenna System ◽  
Base Station ◽  
Spatial Multiplexing ◽  
Channel Correlation ◽  
Mimo Antenna ◽  
Linearly Independent ◽  
Base Station Antennas ◽  
The Impact

Massive Multi-Input and Multi-Output (MIMO) antenna system provides unlimited capacity by the spatial multiplexing and array gain. Since the data rate has been limited by the coherence interference due to pilot contamination (PC). In this paper, we propose transmit combine and precoding schemes to achieve asymptotic capacity in multi-cell scenario, when the number of base station antennas tends to infinity. The impact of spatial channel correlation on channel capacity is explored by considering the co-variance matrices of the user –terminals (UT)s .To do this, we presented linear processing schemes such as MMSE,MRC, and ZF.Where MMSE achieves high capacity in the presence of large-scale fading and PC. Since the diagonals of the channel covariance matrices were designed with non- zero Eigen values and linearly independent. The results outperform and obtain asymptotic limit, when the co-variance of UTs are linearly independent. The results were simulated by using MATLAB 2018b.

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