Server-to-Server Wireless Data Center Network Routing
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Solution Overview
Problem
Traditional data center networks consume high power due to power-hungry switching fabrics, and existing wireless solutions do not effectively address power consumption or obstruction-aware routing.
Innovation Solution
A server-to-server wireless data center network using millimeter-wave links with directional antenna arrays for horizontal and vertical communication, enabling obstruction-aware routing and reducing power consumption by eliminating the need for traditional switching fabrics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional switching fabrics are used to connect servers, then network connectivity is ensured, but power consumption is very high
Solution Approach 1:
The patent replaces the mechanical/electrical switching fabric system with a wireless communication system using directional antenna arrays. Servers communicate directly through wireless links in 3D space, eliminating the need for physical cables and traditional network switches, thereby dramatically reducing power consumption while maintaining connectivity.
Solution Approach 2:
The patent extracts and removes the power-hungry switching fabric components from the network architecture. By implementing direct server-to-server wireless communication, the intermediate switching devices are taken out of the system entirely, eliminating their power consumption while preserving network functionality through spatial routing.
2Ease of manufacture
If servers are arranged in traditional rectangular configuration, then ease of deployment is maintained, but line of sight for wireless communication is blocked
Solution Approach 1:
The patent transitions from traditional 2D rectangular server arrangement to a 3D spatial configuration. Servers utilize vertical stacking with directional antenna arrays that can communicate horizontally and vertically, adding the vertical dimension to the network topology. This enables line-of-sight wireless communication while maintaining rectangular floor plans.
Solution Approach 2:
The patent implements dynamic beam steering and directional antenna adjustment to adapt to different communication paths. The directional antenna arrays can dynamically orient their beams to establish wireless links around obstacles, providing flexible communication paths that adapt to the rectangular server layout rather than requiring fixed geometric arrangements.
3Use of energy by moving object
If directional antenna arrays are used for wireless communication, then power consumption is reduced, but obstruction avoidance becomes complex
Solution Approach 1:
The patent implements feedback mechanisms where servers exchange control messages to detect obstructions and dynamically adjust their communication paths. The system continuously monitors link quality and automatically reroutes traffic through alternative servers when obstructions are detected, managing routing complexity through adaptive feedback control.
Solution Approach 2:
The patent introduces intermediary servers as mediators for communication when direct paths are blocked. Instead of complex direct obstruction avoidance, the system uses intermediate relay servers to forward traffic around obstacles, simplifying the routing logic by breaking down complex paths into simpler segments through intermediary nodes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves significant power savings of up to 87% and ensures reliable communication by adapting routing protocols to avoid obstructions, maintaining network performance even in obstructed areas.
Implementation Method 1
direct server-to-server millimeter-wave wireless data center network
Data Source
AI summary
A wireless server-to-server datacenter network architecture uses wireless links to eliminate the need for power-hungry switching fabric of traditional fat-tree based datacenter networks. The server-to-server wireless datacenter network (S2S-WiDCN) requires Line-of-Sight (LoS) between servers to establish direct communication links. Utilizing this LoS links, a horizontal-first routing algorithm is developed which, will establish fast communication links between any pair of communicating servers in the data center. The wireless links can be realized in millimeter-wave (such as 30, 60, 120 GHz) or THz (such as 300 GHz) frequency bands. The use of antenna-arrays to create beam-steering towards communicating servers is necessary to establish the direct server-to-server links. In the presence of an obstruction such as an IT technician, the LoS between communicating servers may be blocked. To address this issue, an obstruction-aware adaptive routing algorithm for the S2S-WiDCN is proposed. Alternatively, the wireless links can be realized with FSO. The performance of such a wireless data center is better than that of conventional tree-based wired data centers while its power consumption is significantly lower than that of the conventional data center network.