The architecture and traffic management of wireless collaborated hybrid data center network

HuangHe,; LiaoXiangke,; LiShanshan,; Peng, Shaoliang; LiuXiaodong,; LinBin,

doi:10.1145/2534169.2491724

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Wireless technologies that have been initially presented in [5] serve as a detour link between Top of Racks (TORs) in a DC to mitigate the congestion condition of switches and improve maximum transmission delays [4], [19], [20]. Besides using wireless link as a detour, the feasibility of completely wireless data centers have been investigated in research community so as to mitigate the high wiring costs, performance bottlenecks, and low resiliency to network failures of wired data centers.…”

Section: A Wireless Data Center (Wdc)mentioning

confidence: 99%

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On the Feasibility of Wireless Interconnects for High-throughput Data Centers

Khonsari,

Shariatpanahi,

Diyanat

et al. 2015

Preprint

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Data Centers (DCs) are required to be scalable to large data sets so as to accommodate everincreasing demands of resource-limited embedded and mobile devices. Thanks to the availability of recent high data rate millimeter-wave frequency spectrum such as 60GHz and due to the favorable attributes of this technology, wireless DC (WDC) exhibits the potentials of being a promising solution especially for small to medium scale DCs. This paper investigates the problem of throughput scalability of WDCs using the established theory of the asymptotic throughput of wireless multi-hop networks that are primarily proposed for homogeneous traffic conditions. The rate-heterogeneous traffic distribution of a data center however, requires the asymptotic heterogeneous throughput knowledge of a wireless network in order to study the performance and feasibility of WDCs for practical purposes. To answer these questions this paper presents a lower bound for the throughput scalability of a multi-hop rateheterogeneous network when traffic generation rates of all nodes are similar, except one node. We demonstrate that the throughput scalability of conventional multi-hopping and the spatial reuse of the above bi-rate network is inefficient and henceforth develop a speculative 2-partitioning scheme that improves the network throughput scaling potentials. A better lower bound of the throughput is then obtained. Finally, we obtain the throughput scaling of an i.i.d. rate-heterogeneous network and obtain its lower bound. Again we propose a speculative 2-partitioning scheme to achieve a network with higher throughput in terms of improved lower bound. All of the obtained results have been verified using simulation experiments.

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Section: A Wireless Data Center (Wdc)mentioning

confidence: 99%

“…As a tradeoff between network performance and cable complexity, the authors in [20] proposed RF-HYBRID that employed wired-wireless collaborated hybrid DC architecture to have the best of both worlds.…”

Section: A Wireless Data Center (Wdc)mentioning

confidence: 99%

On the Feasibility of Wireless Interconnects for High-throughput Data Centers

Khonsari,

Shariatpanahi,

Diyanat

et al. 2015

Preprint

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“…Certain nodes in a DCN may contain data blocks that are required by many jobs. Such nodes are referred to as hotspots [12], [13], [17]- [19]. It is difficult for tree-based DCNs to adapt to unpredictable traffic patterns resulting from hotspots due to the fixed hierarchial topology and link oversubscription.…”

mentioning

confidence: 99%

Wireless Communication in Data Centers: A Survey

Hamza

Deogun

Alexander

2016

IEEE Commun. Surv. Tutorials

114

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Abstract-Data centers (DCs) is becoming increasingly an integral part of the computing infrastructures of most enterprises. Therefore, the concept of DC networks (DCNs) is receiving an increased attention in the network research community. Most DCNs deployed today can be classified as wired DCNs as copper and optical fiber cables are used for intra-and inter-rack connections in the network. Despite recent advances, wired DCNs face two inevitable problems; cabling complexity and hotspots.To address these problems, recent research works suggest the incorporation of wireless communication technology into DCNs. Wireless links can be used to either augment conventional wired DCNs, or to realize a pure wireless DCN. As the design spectrum of DCs broadens, so does the need for a clear classification to differentiate various design options. In this paper, we analyze the free space optical (FSO) communication and the 60 GHz radio frequency (RF), the two key candidate technologies for implementing wireless links in DCNs. We present a generic classification scheme that can be used to classify current and future DCNs based on the communication technology used in the network. The proposed classification is then used to review and summarize major research in this area. We also discuss open questions and future research directions in the area of wireless DCs.Index Terms-Wireless data centers, 60 GHz, free space optical (FSO), optical wireless communication (OWC), data centers, data center network.

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Free Talk in the Air: A Hierarchical Topology for 60 GHz Wireless Data Center Networks

Zhang

Gao

et al. 2017

IEEE/ACM Trans. Networking

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The architecture and traffic management of wireless collaborated hybrid data center network

Cited by 3 publications

References 2 publications

On the Feasibility of Wireless Interconnects for High-throughput Data Centers

On the Feasibility of Wireless Interconnects for High-throughput Data Centers

Wireless Communication in Data Centers: A Survey

Free Talk in the Air: A Hierarchical Topology for 60 GHz Wireless Data Center Networks

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