Multi-User V-Band Uplink Using a Massive MIMO Antenna and a Fiber-Wireless IFoF Fronthaul for 5G mmWave Small-Cells

Ruggeri, Eugenio; Tsakyridis, Apostolos; Vagionas, Christos; Leiba, Yigal; Kalfas, George; Pleros, Nikos; Miliou, Amalia

doi:10.1109/jlt.2020.2984374

Cited by 19 publications

(9 citation statements)

References 29 publications

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“…In other words, as long as the cardinality P of the constellation S is sufficiently smaller than the number of served users K and/or the aggregate rank of limited fronthaul channels L -that is, P 2 < max{K, L } -the solution offered by the RPDAZF has lower complexity than the conventional ZF receiver. In turn, the most expensive operation of the EPbased benchmark receiver is the repeated inversion of the matrix Ψ, required to update the beliefs β k via equation (13).…”

Section: Performance Assessment a Qualitative Complexity Assessmentmentioning

confidence: 99%

Uplink Signal Detection for Scalable Cell-Free Massive MIMO Systems With Robustness to Rate-Limited Fronthaul

et al. 2021

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We consider the problem of uplink signal detection in scalable cell-free mMIMO (CF-mMIMO) systems subject to limited fronthaul link capacity and highly correlated channel conditions. Unlike centralized MIMO systems, in which all receive antennas are placed at a central access point (CAP), in the CF-mMIMO architecture the CAP serving a given area also uses information (i.e. channel estimates and receive signals) collected by a set of surrounding access points (APs). For such a scenario, two new robust receivers are designed, which can combat the effects of limited fronthaul capacity by leveraging knowledge of the heteroscedastic covariance of the resulting effective noise. The first receiver, which has a higher complexity but yields the best performance, is based on an expectation propagation (EP) approach, while the second employs the effective noise heteroscedastic covariance in a generalized least squares (GLS) variation of the maximum likelihood (ML) detection problem. Simulation results confirm the efficacy of both proposed receivers, which are further employed to empirically study the optimum distribution of antennas among the CAP and APs.

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Section: Performance Assessment a Qualitative Complexity Assessmentmentioning

confidence: 99%

Uplink Signal Detection for Scalable Cell-Free Massive MIMO Systems With Robustness to Rate-Limited Fronthaul

et al. 2021

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“…In reference [14] illustrate that the reconstruction of a new architecture will improve level of performance, enhance energy efficiency, and decreases Capex, Opex and TC. The author of the paper [15] stated that the key enabling technologies of 5G technology are multi-edge computer (MEC), SDN, massive MIMO, ultra-dense network (UDN), NFV and D2D communication. In reference [14], reviewed several network architectures this includes partial C-RAN which has L1 functions in the RRH and both L2 and L3 are in BBU and full C-RAN is when we have LI, L2, L3 functionally are placed in the BBU.…”

Section: Review Of Related Workmentioning

confidence: 99%

Low Latency 5G Distributed Wireless Network Architecture: A Techno-Economic Comparison

Gedel

Nwulu

2021

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The most profound requirements of fifth-generation (5G) technology implementations are the architecture design and the radio base station technology to capably run applications such as device-to-device, machine-to machine and internet of things at a reduced latency. Owing to these requirements, the implementation of 5G technology is very expensive to mobile network operators (MNO). In this study we modified the existing 4G network to form a distributed wireless network architecture (DWNA); the picocell and distributed antenna system were modified to support the enabling technology of 5G technology were a multi-edge computer (MEC), software-defined networking (SDN), massive multiple input multiple output (MIMO), ultra-dense network (UDN), Network Functions Virtualization (NFV) and device-to-device (D2D) communication at a reduced cost of ownership, improved coverage and capacity. We present a mathematical model for operational expenditure, capital expenditure and total cost of ownership (TCO) for the DWNA. A mathematical model for DWNA capacity and throughput was presented. Result shows that it is very economical for MNO to rent the space of the tower infrastructure from tower companies. The sensitivity analysis also shows a significant reduction in TCO for both the modified picocell and modified distributed antenna systems.

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“…Advances in the multiuser FiWi links include simultaneous transmission of multiple RF signals at distinct frequency bands [14] as well as the use of phased array antennas for beamforming and beamsteering [33][34][35]. In [14], we presented a FiWi system over legacy PON based on DD-MZM that was able to cover the 5G eMBB scenario at FR1 and FR2, thereby enabling applications including long reach, fiber-to-the-home, and machine-tomachine communication.…”

Section: Conflicts Of Interestmentioning

confidence: 99%

“…In [14], we presented a FiWi system over legacy PON based on DD-MZM that was able to cover the 5G eMBB scenario at FR1 and FR2, thereby enabling applications including long reach, fiber-to-the-home, and machine-tomachine communication. In [33], Ruggeri et al reported a multiuser FiWi mm-wave/IFoF system taking advantage of a 32-element 60 GHz phased array antenna with beamsteering capability. In [34], Huang et al demonstrated the possibility of integrating self-steering array beamforming to the FiWi architecture.…”

Section: Conflicts Of Interestmentioning

confidence: 99%

Integrating Optical and Wireless Techniques towards Novel Fronthaul and Access Architectures in a 5G NR Framework

et al. 2021

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The fifth-generation of mobile network (5G) and beyond requires a radio access network (RAN) update in order to cope with the incoming increase of wireless data traffic and new applications. In this context, we propose an efficient optical-wireless architecture applied to the non-standalone (NSA) 5G new radio (NR) framework. Several distinct electrical- and optical-based fronthaul configurations combining free-space optical (FSO), wireless links, and radio over fiber (RoF) techniques were implemented and properly analyzed for selection according to network operator deployment requirements. In addition, visible light communication (VLC) was investigated as a future access network technology when immunity to electromagnetic interference is paramount. Experimental results demonstrated fourth-generation of mobile network (4G) and 5G coexistence at Gbit/s throughput and error vector magnitude (EVM) in accordance with 5G NR Release 15.

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Multi-User V-Band Uplink Using a Massive MIMO Antenna and a Fiber-Wireless IFoF Fronthaul for 5G mmWave Small-Cells

Cited by 19 publications

References 29 publications

Uplink Signal Detection for Scalable Cell-Free Massive MIMO Systems With Robustness to Rate-Limited Fronthaul

Uplink Signal Detection for Scalable Cell-Free Massive MIMO Systems With Robustness to Rate-Limited Fronthaul

Low Latency 5G Distributed Wireless Network Architecture: A Techno-Economic Comparison

Integrating Optical and Wireless Techniques towards Novel Fronthaul and Access Architectures in a 5G NR Framework

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