Diamond: Nesting the Data Center Network With Wireless Rings in 3-D Space

Yong Cui, Shihan Xiao, Xin Wang, Zhenjie Yang, Shenghui Yan, Chao Zhu, Xiang Yang Li, Ning Ge

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)


The introduction of wireless transmissions into the data center has shown to be promising in improving cost effectiveness of data center networks (DCNs). For high transmission flexibility and performance, a fundamental challenge is to increase the wireless availability and enable fully hybrid and seamless transmissions over both wired and wireless DCN components. Rather than limiting the number of wireless radios by the size of top-of-rack switches, we propose a novel DCN architecture, Diamond, which nests the wired DCN with radios equipped on all servers. To harvest the gain allowed by the rich reconfigurable wireless resources, we propose the low-cost deployment of scalable 3-D ring reflection spaces (RRSs) which are interconnected with streamlined wired herringbone to enable large number of concurrent wireless transmissions through high-performance multi-reflection of radio signals over metal. To increase the number of concurrent wireless transmissions within each RRS, we propose a precise reflection method to reduce the wireless interference. We build a 60-GHz-based testbed to demonstrate the function and transmission ability of our proposed architecture. We further perform extensive simulations to show the significant performance gain of diamond, in supporting up to five times higher server-to-server capacity, enabling network-wide load balancing, and ensuring high fault tolerance.

Original languageEnglish
Pages (from-to)145-160
JournalIEEE/ACM Transactions on Networking
Issue number1
Publication statusPublished - 2018
MoE publication typeA1 Journal article-refereed


  • Data center network
  • Diamond
  • Interference
  • millimeter-wave wireless communication.
  • network architecture
  • Network topology
  • Routing
  • Servers
  • Wireless communication

Fingerprint Dive into the research topics of 'Diamond: Nesting the Data Center Network With Wireless Rings in 3-D Space'. Together they form a unique fingerprint.

Cite this