Reconfigurable Massive MIMO: Harnessing the Power of the Electromagnetic Domain for Enhanced Information Transfer

Ying, Keke; Gao, Z.; Chen, Sheng; Gao, Xinyu; Matthaiou, Michail; Zhang, Rui; Schober, Robert

doi:10.1109/mwc.014.2200418

Cited by 5 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been shown in various literatures that Massive MIMO can boost spectral efficiencies of UTs by an order of ten times without bandwidth expansion and additional cost of implementation. Massive MIMO will continue to play a crucial role in supplying high data rates with ultra-reliable low latency characteristics and recently reconfigurable technologies have been introduced [3]. In 5G and future cellular networks, linear receivers are implemented in the BS so that the Massive MIMO system can transmit and receive data as well as pilot signals to and from the user terminals in the uplink channel.…”

Section: Introductionmentioning

confidence: 99%

An analytical reliability performance assessment of Cell-Free Massive MIMO systems for 5G and Beyond cellular networks

HOSANY,

Dobee

2023

Preprint

View full text Add to dashboard Cite

In today’s realm, the 5G cellular networks offer a new era of fully digital environment by connecting people anywhere anytime. This era requires inspiring demands to the networks in terms of spectral and energy efficiencies, low-latency and ultra-reliable communications. A major development to deal with these unparalleled demands is the introduction of Cell-Free Massive MIMO (CF mMIMO) systems to the cellular network. In recent years, mathematical foundations have been laid for a CF mMIMO communication system to evaluate the spectral and energy efficiencies given the number of access points. Various existing literatures have adopted mathematical models to formulate closed-form expressions for these efficiencies using uncorrelated Rayleigh fading for simple linear processing detectors. In this paper, we try to address a compelling and interesting question which has not received much attention lately. The question is how to evaluate the reliability of a connected user terminal in both a CF mMIMO and conventional mMIMO system? We answer this question by first analyzing the signal models for both systems assuming exact channel estimates and consider an uncorrelated Rayleigh fading channel model. The exact Bit Error Rate, as a reliability assessment, in closed-form are then derived based on strong mathematical foundations, which are simple to numerically evaluate in Matlab R2022, for MPSK and MQAM modulation schemes. The mathematical models presented in this work can be used in 5G and Beyond 5G networks to evaluate the distributions of error rates for a user given the number of Access points or Base Station antennas and modulation scheme. Machine Learning algorithms can be applied to the analytical expressions with a view to predict the error performance of a user terminal given the fading characteristic of the propagation environment.

show abstract

Section: Introductionmentioning

confidence: 99%

An analytical reliability performance assessment of Cell-Free Massive MIMO systems for 5G and Beyond cellular networks

HOSANY,

Dobee

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…It is investigated the impact of varactor characteristics on antenna performance and highlighted the importance of linearity and voltage handling capabilities for reliable operation. Additionally, in [9] proposed a reconfigurable antenna based on liquid crystal technology, allowing for polarization control. It is demonstrated the ability to switch between linear and circular polarization states, enabling flexible adaptation to different communication scenarios.…”

Section: Introductionmentioning

confidence: 99%

The enhancing energy efficiency in hyperthermia treatment: a frequency-reconfigurable L-Shape antenna design and analysis

Akinola,

Leelakrishna

2023

TAPR

View full text Add to dashboard Cite

The object of research is a frequency-reconfigurable L-Shape antenna. This paper presents an innovative study focusing on the design and analysis of a frequency-reconfigurable L-Shape antenna with a specific application in Hyperthermia Treatment. The antenna, operating in the frequency range of 2.5 to 8 GHz, utilizes a varactor to achieve agility and simplify design, thereby reducing component count. Constructed with a Roggers RT5880 (lossy) substrate, the L-Shape configuration ensures optimal performance. The incorporation of a single varactor, acting as a junction capacitance, not only enables straightforward tuning but also contributes to enhanced energy efficiency by reducing overall power consumption in the reconfigurable antenna system. The study employed CST Microwave Studio's 3D Electromagnetic field simulation software for time domain solver-based simulations, with validation conducted using the frequency domain solver. Results from the simulations showcase the antenna's performance at different frequency states. At the tuning state frequency of 2.7 GHz, the antenna exhibits an impressive gain of 1.905 dB and a directivity of 7.530 dB. Similarly, at the tuning state frequency of 6.89 GHz, the gain is measured at 6.806 dB with a directivity of 7.490 dB. The proposed L-Shape antenna design not only demonstrates significant potential for Hyperthermia Treatment, allowing targeted heating within the 2.5 to 8 GHz frequency range but also aligns with the multidisciplinary focus of medical science. This contribution reflects the commitment to advancing medical science through original research, fostering innovation, and promoting energy-efficient solutions with practical applications in clinical settings.

show abstract

Precoding Design of Reconfigurable Massive MIMO in the Electromagnetic Domain

Ying,

Gao

2023

GLOBECOM 2023 - 2023 IEEE Global Communications Conference

View full text Add to dashboard Cite

Reconfigurable Massive MIMO: Harnessing the Power of the Electromagnetic Domain for Enhanced Information Transfer

Abstract: as a Principal's Diligence Chair Professor. His current research interests include UAV/satellite communications, wireless power transfer, intelligent reflecting surface, reconfigurable MIMO, radio mapping, and optimization methods.

Cited by 5 publications

References 14 publications

An analytical reliability performance assessment of Cell-Free Massive MIMO systems for 5G and Beyond cellular networks

An analytical reliability performance assessment of Cell-Free Massive MIMO systems for 5G and Beyond cellular networks

The enhancing energy efficiency in hyperthermia treatment: a frequency-reconfigurable L-Shape antenna design and analysis

Precoding Design of Reconfigurable Massive MIMO in the Electromagnetic Domain

Contact Info

Product

Resources

About