Data Center Connectivity by 6G Wireless Systems

Abstract

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6G: Envisioning the Key Technologies, Applications and Challenges

“…Some recent articles have provided detailed discussions about green 6G network architecture [27], 6G spectrum management [28], security challenges [29], potential solutions [33], machine learning technologies for 6G [30][31] and performance evolution of terahertz [32] communications. Some publications have discussed data center connectivity [34] and practical implementation of multiple access [35] for 6G networks. Network patterns for 6G are highlighted in some studies [36][37].…”

Beyond 5G - wireless data center connectivity

“…While the use of spatial control, i.e., beamforming and steering, as discussed in section 2.2, certainly helps in maximizing connectivity via line of sight (los) paths and with achieving the required link density, it will be impossible to ensure a los exists between any two arbitrary points in the data center. Initially the arrangement of servers within a rack into circular or hexagonal structures will alleviate the problem for intra-rack connections and can significantly increase the number of available connections between servers within adjacent or closely located racks, 11,13 but for large data centers and such with densely packed clusters of racks additional measures will be required. Among the suggested solutions is the introduction of ceiling mirrors in specific locations to reflect high-frequency (i.e., high mm-wave or THz) radio or fso signals and thus multiply the number of reachable other racks and nodes.…”

“…Wireless data center networking has been introduced to improve data center connectivity and circumvent current bottlenecks or even to enable fully wireless data centers. [10][11][12][13][14][15] Innovative wireless terminals, air interfaces, and network transmission technologies are accelerating the evolution not only of devices, but also of architectures. Mobile data-centers can replace hundreds of meters of cable withmillimeter wave (mm-wave) wireless connections along with servers addressing both intra-and inter-rack connections.…”

“…Several technologies such as mm-wave transmission and beamforming with phase antenna arrays have been developed within the scope of 5G mobile and beyond, i.e., converged optical and wireless networking with radio frequency (rf) carriers of tens of GHz enabling a new paradigm of wireless mobile network conception (here referred to as beyond 5G) so as to provide high capacity, density, flexibility, and reconfigurabilty data centers. 11 In this paper, wireless technology beyond 5G such as spectrum unification, in which frequency bands from 5G mobile up to the visible light window, covering mm-wave and THz regions, are addressed, as well as beamforming and self-configuring networks are discussed as a potential solution for wireless data center connectivity. The paper further discusses the implications on the network architecture and data center design coming from the introduction of wireless connectivity and highlights the potential gain from the resulting increased flexibility and reconfigurability.…”

THz Cluster-Based Modeling and Propagation Characterization in a Data Center Environment

“…Cloud computing has become popular for on-demand computing services, such as storage and data processing. Increasing demand for cloud computing is driving the need for data centers that are equipped with low-latency networks and capable of dynamic scalability based on workloads [1], [2]. In traditional data centers, information exchange between servers mainly relies on wires and optical fiber cables.…”