On the Impact of Antenna Array Geometry on Indoor Wideband Massive MIMO Networks

Temiz, Murat; Alsusa, Emad; Danoon, Laith; Zhang, Yongwei

doi:10.1109/tap.2020.3008662

Cited by 27 publications

(20 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Two important researches on the array topology are presented in [73] and [74]. In [73], Temiz et al investigated the impact of the antenna array geometry in the mutual coupling and channel correlation, by exploiting a directional wideband single antenna element for the antenna array and UE.…”

Section: Antenna Technologies For Sub-6 Ghz and Mmwavesmentioning

confidence: 99%

Wireless and Optical Convergent Access Technologies Toward 6G

Filgueiras¹,

Lima

Cunha

et al. 2023

IEEE Access

View full text Add to dashboard Cite

The sixth generation of mobile communication (6G) systems is recently rising a lot of interest, introducing new futuristic and challenging use cases that will demand much more than just communications to become a reality. Higher throughput, lower latencies, higher number of connections will push the requirement of the future mobile networks to a new level, but also sensing, positioning and imaging will play an important role in the new foreseen use cases. The integration of techniques developed for wireless communications with those conceived for optical links will be essential to provide the infrastructure for the 6G networks. In this context, this paper presents a review on wireless and optical convergent access solutions towards the 6G systems. The manuscript brings the use cases, requirements and enablers for 6G networks including a discussion about the state-of-the-art on THz and sub-THz communications, wireless and optical convergence, visible light communication, integrated and free-space optics, new antenna designs, powerover-fiber deployments and the use of machine learning in the physical layer of future networks. By reviewing the most relevant contributions available in the literature for wireless and optical communications and presenting their main contributions, this paper clearly shows that, more than a technological trend, the convergence of wireless and optical technologies is a fundamental step towards the development of the 6G network infrastructure.

show abstract

Section: Antenna Technologies For Sub-6 Ghz and Mmwavesmentioning

confidence: 99%

Wireless and Optical Convergent Access Technologies Toward 6G

Filgueiras¹,

Lima

Cunha

et al. 2023

IEEE Access

View full text Add to dashboard Cite

show abstract

“…The overall DM of the mMIMO system can be calculated by multiplying the DMs of the BS and the UEs. Let us consider that the BS employs and 18-element antenna configuration [27] which is composed of 3 ULAs of 6 antenna elements (N=6, L=3) as shown in Fig. 3(b).…”

Section: Performance In Massive Mimomentioning

confidence: 99%

Diversity Order and Measure of MIMO Antennas in Single-User, Multiuser, and Massive MIMO Wireless Communications

Kshetrimayum

Mishra

Aı̈ssa

et al. 2023

Antennas Wirel. Propag. Lett.

View full text Add to dashboard Cite

In this paper, the diversity order (DO) and the diversity measure (DM) of multiple-input multiple-output (MIMO) antennas in generic single-user, multi-user and massive MIMO wireless communications are calculated for several practical case studies. These performance metrics are calculated from the antenna correlation coefficient (ACC) matrix. The DO is calculated from the rank of the ACC matrix, and the DM is obtained from the trace and Frobenius norm of the ACC matrix. Numerical results are provided. In particular, it is shown that though the DM is always less than the DO, it incorporates the effect of antenna correlation on the diversity gain in a better way.

show abstract

“…Equation ( 8) is a general formula for arbitrary types of antenna arrays with only different location vectors being generated [21,37].…”

Section: Asymptotically Fp Analysismentioning

confidence: 99%

A Theoretical Analysis of Favorable Propagation on Massive MIMO Channels with Generalized Angle Distributions

Zhang

et al. 2022

Electronics

View full text Add to dashboard Cite

Massive MIMO obtains the multiuser performance gain based on the favorable propagation (FP) assumption, defined as the mutual orthogonality of different users’ channel vectors. Until now, most of the theoretical analyses of FP are based on uniform angular distributions and only consider the horizontal dimension. However, the real propagation channel contains full dimensions, and the spatial angle varies with the environment. Thus, it remains unknown whether the FP condition holds in real deployment scenarios and how it impacts the massive MIMO system performance. In this paper, we analyze the FP condition theoretically based on a cluster-based three-dimensional (3D) MIMO channel with generalized angle distributions. Firstly, the FP condition’s unified mathematical expectation and variance expressions with full-dimensional angular integral are given. Since the closed-form expressions are hard to derive, we decompose generalized angle distributions, i.e., wrapped Gaussian (WG), Von Mises (VM), and truncated Laplacian (TL) into the functions of Bessel and Cosine basis by introducing Jacobi-Anger expansions and Fourier series. Thus the closed-form expressions of the FP condition are derived. Based on the above, we theoretically analyze the asymptotically FP condition under generalized angle distributions and then compare the impact of angular spreads on the FP performance. Furtherly, the FP condition is also investigated by numerical simulations and practical measurements. It is observed that environments with larger angle spreads and larger antenna spacing are more likely to realize FP. This paper provides valuable insights for the theoretical analysis of the practical application of massive MIMO systems.

show abstract

On the Impact of Antenna Array Geometry on Indoor Wideband Massive MIMO Networks

Cited by 27 publications

References 26 publications

Wireless and Optical Convergent Access Technologies Toward 6G

Wireless and Optical Convergent Access Technologies Toward 6G

Diversity Order and Measure of MIMO Antennas in Single-User, Multiuser, and Massive MIMO Wireless Communications

A Theoretical Analysis of Favorable Propagation on Massive MIMO Channels with Generalized Angle Distributions

Contact Info

Product

Resources

About