CN113726879A - Hybrid data center network structure VHCN based on VLC link - Google Patents
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H04L45/12—Shortest path evaluation
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- H04W40/246—Connectivity information discovery
Abstract
The invention relates to the technical field of data center network topology structure design, and discloses a mixed data center network structure VHCN based on VLC links, which comprises the following steps: s1, adding a wireless VLC link in a data center network HCN topological structure, wherein the original HCN structure is not changed, and the wireless VLC link is only added in a server layer; s1.1, constructing a regular wireless VLC link: installing 4 LED transceivers for constructing wireless VLC links for each server, and all servers forming a grid topology of n rows and n columns, the 4 transceivers of the servers in the grid being installed on four sides to construct regular links with its adjacent racks, while the racks at the edge of the grid may construct no more than 3 regular links; in the invention, the wireless VLC link is added into the wired HCN structure, the deployment environment of the HCN is not changed, and the problems of difficult redeployment, low flexibility and high maintenance cost of the traditional structure of the current large-scale data center network after expansion are solved.
Description
Technical Field
The invention relates to the technical field of data center network topology structure design, in particular to a hybrid data center network structure VHCN based on VLC links.
Background
Under the influence of the trend of cloud computing technology, data center networks are undergoing a deep revolution, and are reflected in the improvement of scale, bandwidth, multilink, expansibility and flexibility and the reduction of cost. The traditional wired data center network structure is divided into two types: switch-centric data center networks and server-centric data center networks, both of which have various drawbacks. 3 layers of switches such as a Fat-tree common core layer (core level), an aggregation level (aggregation level), and a boundary layer (edge level) shown in FIG. 1; n Pod (containing n/2 switches of aggregation layer and boundary layer); the switch of the Pod inner aggregation layer and the switch of the boundary layer adopt a full connection mode; the core layer has (n/2)2 n-port switches, each having a port connected to a Pod. The large-scale interconnection of the system and the high communication bandwidth between the servers are realized, but the expansion of the port number of the switch is not easy, and the tree-shaped characteristic of the switch also determines that the switch cannot well support one-to-many and many-to-many network communication services. As shown in fig. 2, BCube is a new data center network structure with high throughput and is constructed recursively, and BCube0 is formed by connecting n servers to an n-port switch; the BCubek is composed of n BCubek-1 switches and nk n-port switches. However, BCube expansion can bring significant hardware and human costs. As shown in fig. 3, the HCN network structure uses a dual-port server as a forwarding center and is extended in a recursive definition manner, the structure HCN (n, h) is composed of n next-level HCN (n, h-1) structures, and each HCN (n, h-1) structure is connected with other n-1 same-level structures in a fully-connected manner, where n denotes the number of ports of a switch, h and h-1 denote the levels of the HCN structures, and the naming rule of the server node is that a ═ ahah-1…a0(ai∈[1,n],[i∈[0,h]) A0 represents the position of the current node in HCN (n,0), a1 represents the position of HCN (n,0) in HCN (n,1), and ah represents the position of HCN (n, h-1) in HCN (n, h). HCN is simple to deploy and convenient to expand, but is limited by the structural features that certain defects exist in split bandwidth and the path richness is insufficient.
The traditional data center network structure can not meet the requirement of modernization, and the invention provides the method for making up the structural defect of HCN by using the wireless VLC technology and enhancing the structural performance. The wireless VLC technology has stronger flexibility, can strengthen the existing structure without changing the deployment condition of the existing HCN structure, combines wireless link and wired link, and solves the problem faced by the existing structure.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a VLC link-based hybrid data center network structure VHCN, which solves the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a VLC link based hybrid data center network architecture VHCN, comprising the steps of:
s1, adding a wireless VLC link in a data center network HCN topological structure, wherein the original HCN structure is not changed, and the wireless VLC link is only added in a server layer;
s1.1, constructing a regular wireless VLC link:
installing 4 LED transceivers for constructing wireless VLC links for each server, and all servers forming a grid topology of n rows and n columns, the 4 transceivers of the servers in the grid being installed on four sides to construct regular links with its adjacent racks, while the racks at the edge of the grid may construct no more than 3 regular links;
s1.2, constructing a random wireless VLC link:
the standby LED transceiver is arranged at the top of the server and used for constructing an irregular wireless VLC link, and when the Hamming distance between every two servers is more than 2 and the servers are not directly connected, a random wireless VLC link is constructed;
and S2, when in communication, the wired route, the wireless route using the wireless VLC link or the mixed route combining the wired route and the wireless route are selected by taking the shortest path length as a standard for communication.
Preferably, in step S1.1, the specific process of constructing the regular wireless VLC link is as follows:
the servers are placed, servers which are not directly connected in the HCN topology can be placed adjacently, if conflict occurs, the steps are repeated until a proper placing position of the servers is found, specifically, two servers A, B in the HCN are respectively set to be a ═ ahah-1…a0(ai∈[1,n],[i∈[0,h])，B＝bhbh-1…b0(bi∈[1,n],i∈[0,h]) When a ishah-1…a1＝bhbh-1…b1And a is0≠b0When or ah＝bi(i∈[0,h-1]) And b ish＝ai(i∈[0,h-1]) Conflict occurs, namely two servers which are not directly connected in the HCN topological node are adjacently arranged; if conflict occurs, repeating the steps until a proper placing position of the server is found, installing an LED transceiver on the side face of the server, and forming a regular link between adjacent servers.
Preferably, in step S1.2, the specific process of constructing the random wireless VLC link is as follows: calculating the Euclidean distance between two servers
Wherein (x)1,y1),(x2,y2) Coordinates of the two servers in the two-dimensional mesh topology; since the LED transceiver performs high-rate data transmission within 10 meters, two servers connected by a random link with a distance between adjacent servers of less than 10 meters should satisfy an inequality
The basic building unit HCN (n,0) of HCN is taken as a pod, and random links built among different podsAnd constructing a pod graph G which is (V, E), wherein the pod connectivity is defined as the ratio of the number of edges in the G to the number of edges in the corresponding complete graph, and repeating the step to find the random connection which enables the pod to have the maximum connectivity.
Preferably, m and n represent two servers, i represents the server in the ith row of the mesh topology, and j represents the server in the jth column of the mesh topology.
Preferably, in the step S1, adding wireless VLC links in the data center network HCN topology, where the LED transceivers of the regular links in the wireless VLC links are installed on the side of the server; the LED transceivers of the random link are arranged at the top end of the server, and different groups of transceivers are positioned on different planes by using a fixed-point coloring method.
Preferably, in step S2, when performing communication, the wired route, the wireless route using the wireless VLC link, or the mixed route in which the wired route and the wireless route are combined is selected based on the shortest path length.
Preferably, in step S2, when performing one-to-one communication, for the source node src and the target node dst, it is first determined whether the two nodes are directly connected by a wired link or a wireless link, and the connection via a switch in the same base unit can also be regarded as a direct connection, for two nodes that are not directly connected, if their base units are connected by a wireless link, the wireless link between the base units can be used for communication, the communication path within one base unit can be given directly by the build process, if there is no wireless link in both base units, the connection between the next level of authority where the source and destination nodes are located (dst1, src1), the above procedure is performed for new source and destination nodes (src, dst1), (src1, dst) until all paths between the source node src to the destination node dst occur.
(III) advantageous effects
The invention provides a VLC link-based mixed data center network structure VHCN, which has the following beneficial effects:
(1) in the invention, the wireless VLC link is added into the wired HCN structure, the deployment environment of the HCN is not changed, and the problems of difficult redeployment, low flexibility and high maintenance cost of the traditional structure of the current large-scale data center network after expansion are solved.
(2) In the invention, for the wired data center structure HCN, only the servers in the HCN (n,0) are in full connection, the problem that the adjacent servers cannot be directly communicated after expansion exists, the communication distance length between a part of adjacent servers is increased along with the increase of the HCN level, so that the communication is more complicated, and the path diversity is enriched and the path length is shortened by adding the wireless VLC method in the wired HCN.
(3) In the invention, the wireless VLC link and the wired HCN structure are integrated, 4 LED transceivers are installed for each server, and the regular links formed between adjacent servers form a grid topology, so that the random link reduces the network diameter, the problem of poor expansibility of a hybrid network is solved, and the performance of the HCN network is enhanced.
Drawings
FIG. 1 is a FAT-tree network architecture;
FIG. 2 is a diagram of a BCube network architecture;
figure 3 is a diagram of an HCN network architecture;
FIG. 4 is a flow chart of the present invention;
FIG. 5 is a schematic diagram of the regular wireless VLC link and the random wireless VLC link construction of the present invention;
fig. 6 is a schematic diagram of the wireless VLC links at the server level in the HCN of the present invention;
FIG. 7 is a pod connectivity diagram of the present invention;
fig. 8 is a hybrid network architecture VHCN (4,1) of the present invention with wireless VLC links integrated with wired HCN;
fig. 9 is a flow chart of the algorithm for one-to-one communication of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 9, the present invention provides a technical solution: a VLC link based hybrid data center network architecture VHCN, comprising the steps of:
s1, adding a wireless VLC link in a data center network HCN topological structure, wherein the original HCN structure is not changed, and the wireless VLC link is only added in a server layer;
s1.1, constructing a regular wireless VLC link:
installing 4 LED transceivers for constructing wireless VLC links for each server, and all servers forming a grid topology of n rows and n columns, the 4 transceivers of the servers in the grid being installed on four sides to construct regular links with its adjacent racks, while the racks at the edge of the grid may construct no more than 3 regular links;
s1.2, constructing a random wireless VLC link:
the standby LED transceiver is arranged at the top of the server and used for constructing an irregular wireless VLC link, and when the Hamming distance between every two servers is more than 2 and the servers are not directly connected, a random wireless VLC link is constructed;
and S2, when in communication, the wired route, the wireless route using the wireless VLC link or the mixed route combining the wired route and the wireless route are selected by taking the shortest path length as a standard for communication.
Further, in step S1.1, the specific process of constructing the regular wireless VLC link is as follows:
the servers are placed, servers which are not directly connected in the HCN topology can be placed adjacently, if conflict occurs, the steps are repeated until a proper placing position of the servers is found, specifically, two servers A, B in the HCN are respectively set to be a ═ ahah-1…a0(ai∈[1,n],[i∈[0,h])，B＝bhbh-1…b0(bi∈[1,n],i∈[0,h]) When a ishah-1…a1＝bhbh-1…b1And a is0≠b0When or ah＝bi(i∈[0,h-1]) And b ish＝ai(i∈[0,h-1]) Conflict occurs, namely two servers which are not directly connected in the HCN topological node are adjacently arranged; if conflict occurs, repeating the steps until a proper placing position of the server is found, installing an LED transceiver on the side face of the server, forming a regular link between adjacent servers, realizing illumination by modulating the state of the transceiver in the wireless VLC link, indicating that 1 is used when the transceiver receives light and 0 is used when the transceiver does not receive light, and carrying out data transmission according to the condition. The LED transceivers have high sensitivity, and when one transceiver receives signals transmitted by a plurality of transceivers at the same time, the signals cannot be distinguished. Through testing, when the transceivers are installed on the side face of the server, when a signal is transmitted to one transceiver, the interference on other transceivers can be ignored.
Further, in step S1.2, the specific process of constructing the random wireless VLC link is as follows: calculating the Euclidean distance between two servers
Wherein (x)1,y1),(x2,y2) Coordinates of the two servers in the two-dimensional mesh topology; since the LED transceiver performs high-rate data transmission within 10 meters, two servers connected by a random link with a distance between adjacent servers of less than 10 meters should satisfy an inequality
And (3) taking a basic building unit HCN (n,0) of HCN as a pod, building random links among different pods, building a pod graph G which is (V, E), defining pod connectivity as the ratio of the number of edges in G to the number of edges in a corresponding complete graph, and repeating the steps to find the random connection which enables the maximum connectivity among the pods.
Further, m and n represent two servers, i represents the server in the ith row of the mesh topology, and j represents the server in the jth column of the mesh topology.
Further, in step S1, adding wireless VLC links in the data center network HCN topology, wherein LED transceivers of regular links in the wireless VLC links are installed on the side of the server to avoid interference; the LED transceivers of the random link are installed at the top end of the server, and in order to avoid interference, the LED transceivers need to be installed in a layered mode, and transceivers of different groups are located on different planes by using a fixed-point coloring method, so that the interference problem is solved.
Further, in step S2, when performing communication, a wired route, a wireless route using a wireless VLC link, or a hybrid route in which a wired route and a wireless route are combined is selected based on the shortest path length.
Further, in step S2, when one-to-one communication is performed, as shown in algorithm 1.Routing, for the source node src and the destination node dst, it is first determined whether the two nodes are directly connected by a wired link or a wireless link, and the connection via one switch in the same base unit can also be regarded as a direct connection, for two nodes that are not directly connected, if their base units are connected by a wireless link, the wireless link between the base units can be used for communication, the communication path within one base unit can be given directly by the build process, if there is no wireless link in both base units, the connection between the next level of authority where the source and destination nodes are located (dst1, src1), the above procedure is performed for new source and destination nodes (src, dst1), (src1, dst) until all paths between the source node src to the destination node dst occur.
Algorithm 1.Routing pseudo-code is as follows:
Inputting any two server nodes src and dst in VHCN (n, h), wherein service codes are src-shsh-1
And (3) outputting: one path for server node src to dst.
1, f ← Commprrefix (src, dst); v/computing the common Prefix of two nodes
2. Defining m as the length of f;
3.if m＝＝h then；
return (src, dst); // in the same base unit
5. The wireless link connects two servers, a and B, defined as d A, B is 1, otherwise d A, B is 0;
6.if d src,dst＝1then
return (src, dst); // wireless link direct connection
8. The wireless link connects A and B servers to form a link between basic units, and defines pA and B as 1, otherwise
9.pA,B＝0；
If pA, B1 then// A and src in the same basic unit, B and dst in the same unit
11.Return(src,A,B,dst)
(dst1, src1) ← GetIntraLink (f, sh-m, dh-m); // connection between src and the secondary HCN at dst
13.Head←Routing(src,dst1)
14.Tail←Routing(src1,dst)
15.Return head+(dst1,src1)+tail GetIntraLink(f,s,d)
1. Defining m as the length of f;
dst1 ← f + s + dh-m; // dh-m denotes h-m consecutive d
Src1 ← f + s + sh-m; i/sh-m stands for h-m consecutive s
4.Return(dst1,src1)
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A hybrid data center network architecture VHCN based on VLC links, characterized by: the method comprises the following steps:
s1, adding a wireless VLC link in a data center network HCN topological structure, wherein the original HCN structure is not changed, and the wireless VLC link is only added in a server layer;
s1.1, constructing a regular wireless VLC link:
installing 4 LED transceivers for constructing wireless VLC links for each server, and all servers forming a grid topology of n rows and n columns, the 4 transceivers of the servers in the grid being installed on four sides to construct regular links with its adjacent racks, while the racks at the edge of the grid may construct no more than 3 regular links;
s1.2, constructing a random wireless VLC link:
the standby LED transceiver is arranged at the top of the server and used for constructing an irregular wireless VLC link, and when the Hamming distance between every two servers is more than 2 and the servers are not directly connected, a random wireless VLC link is constructed;
and S2, when in communication, the wired route, the wireless route using the wireless VLC link or the mixed route combining the wired route and the wireless route are selected by taking the shortest path length as a standard for communication.
2. A VLC link-based hybrid data center network architecture VHCN of claim 1, wherein: in step S1.1, the specific process of constructing a regular wireless VLC link is as follows:
the servers are placed, servers which are not directly connected in the HCN topology can be placed adjacently, if conflict occurs, the steps are repeated until a proper placing position of the servers is found, specifically, two servers A, B in the HCN are respectively set to be a ═ ahah-1…a0(ai∈[1,n],[i∈[0,h])，B＝bhbh-1…b0(bi∈[1,n],i∈[0,h]) When a ishah-1…a1＝bhbh-1…b1And a is0≠b0When or ah＝bi(i∈[0,h-1]) And b ish＝ai(i∈[0,h-1]) Conflict occurs, namely two servers which are not directly connected in the HCN topological node are adjacently arranged; if conflict occurs, repeating the steps until a proper placing position of the server is found, installing an LED transceiver on the side face of the server, and forming a regular link between adjacent servers.
3. A VLC link-based hybrid data center network architecture VHCN of claim 1, wherein: in step S1.2, the specific process of constructing the random wireless VLC link is as follows: calculating the Euclidean distance between two servers
Wherein (x)1,y1),(x2,y2) Coordinates of the two servers in the two-dimensional mesh topology; since the LED transceiver performs high-rate data transmission within 10 meters, two servers connected by a random link with a distance between adjacent servers of less than 10 meters should satisfy an inequality
And (3) taking a basic building unit HCN (n,0) of HCN as a pod, building random links among different pods, building a pod graph G which is (V, E), defining pod connectivity as the ratio of the number of edges in G to the number of edges in a corresponding complete graph, and repeating the steps to find the random connection which enables the maximum connectivity among the pods.
4. A VLC link-based hybrid data center network architecture VHCN of claim 3, wherein: the m and n represent two servers, i represents the server in the ith row of the mesh topology, and j represents the server in the jth column of the mesh topology.
5. A VLC link-based hybrid data center network architecture VHCN of claim 1, wherein: in the step S1, adding a wireless VLC link in the data center network HCN topology, where an LED transceiver of a regular link in the wireless VLC link is installed on a side surface of the server; the LED transceivers of the random link are arranged at the top end of the server, and different groups of transceivers are positioned on different planes by using a fixed-point coloring method.
6. A VLC link-based hybrid data center network architecture VHCN of claim 1, wherein: in step S2, when performing communication, a wired route, a wireless route using a wireless VLC link, or a hybrid route in which a wired route and a wireless route are combined is selected based on the shortest path length.
7. A VLC link-based hybrid data center network architecture VHCN of claim 1, wherein: in step S2, when performing one-to-one communication, for the source node src and the destination node dst, it is first determined whether the two nodes are directly connected by a wired link or a wireless link, and the connection via a switch in the same base unit can also be regarded as direct connection, for two nodes that are not directly connected, if their base units are connected by a wireless link, the wireless link between the base units can be used for communication, the communication path within one base unit can be given directly by the build process, if there is no wireless link in both base units, the connection between the next level of authority where the source and destination nodes are located (dst1, src1), the above procedure is performed for new source and destination nodes (src, dst1), (src1, dst) until all paths between the source node src to the destination node dst occur.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510404A (en) * | 2011-11-21 | 2012-06-20 | 中国人民解放军国防科学技术大学 | Nondestructive continuous extensible interconnection structure for data center |
| CN103220041A (en) * | 2013-04-22 | 2013-07-24 | 南京邮电大学 | Wireless router access system based on visible light |
| US20140161466A1 (en) * | 2012-11-30 | 2014-06-12 | Nabeel Agha Riza | Multiple mode wireless data link design for robust energy efficient operation |
| US20150071647A1 (en) * | 2013-09-11 | 2015-03-12 | Motorola Solutions, Inc | Staging a mobile device with visible light communication |
| CN104567853A (en) * | 2013-10-24 | 2015-04-29 | 张炯 | Position calibration device and method based on LED visible light source |
| CN104639243A (en) * | 2015-02-02 | 2015-05-20 | 西安理工大学 | Modulation system for LED (Light-Emitting Diode) visible light communication uplink and building method thereof |
| CN105359432A (en) * | 2014-05-23 | 2016-02-24 | 华为技术有限公司 | Communication system and communication method for data centre |
| CN105634953A (en) * | 2015-12-30 | 2016-06-01 | 中国人民解放军国防科学技术大学 | Blended data center networking and routing method based on visible light communication |
| CN106031055A (en) * | 2014-03-18 | 2016-10-12 | 香港科技大学 | Multi-functional smart led systems with visible light communication and ip-based radiofrequency connectivity |
| CN109302711A (en) * | 2018-08-24 | 2019-02-01 | 西安电子科技大学 | The energy-efficient deployment method of restructural Fat-Tree blended data central site network |
| US10337877B1 (en) * | 2016-10-03 | 2019-07-02 | Amazon Technologies, Inc. | Communication with mobile devices utilizing light emitting diodes |
| WO2019154065A1 (en) * | 2018-02-08 | 2019-08-15 | 华为技术有限公司 | Method and communication device for wireless optical communication |
| CN112968804A (en) * | 2021-03-18 | 2021-06-15 | 河南大学 | Data center network fault diagnosis method based on fault-tolerant Hamiltonian |
| CN113115134A (en) * | 2021-03-15 | 2021-07-13 | 清华大学 | Large-address space cross-domain optical interconnection method |
-
2021
- 2021-08-30 CN CN202111002021.3A patent/CN113726879B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510404A (en) * | 2011-11-21 | 2012-06-20 | 中国人民解放军国防科学技术大学 | Nondestructive continuous extensible interconnection structure for data center |
| US20140161466A1 (en) * | 2012-11-30 | 2014-06-12 | Nabeel Agha Riza | Multiple mode wireless data link design for robust energy efficient operation |
| CN103220041A (en) * | 2013-04-22 | 2013-07-24 | 南京邮电大学 | Wireless router access system based on visible light |
| US20150071647A1 (en) * | 2013-09-11 | 2015-03-12 | Motorola Solutions, Inc | Staging a mobile device with visible light communication |
| CN104567853A (en) * | 2013-10-24 | 2015-04-29 | 张炯 | Position calibration device and method based on LED visible light source |
| CN106031055A (en) * | 2014-03-18 | 2016-10-12 | 香港科技大学 | Multi-functional smart led systems with visible light communication and ip-based radiofrequency connectivity |
| CN105359432A (en) * | 2014-05-23 | 2016-02-24 | 华为技术有限公司 | Communication system and communication method for data centre |
| CN104639243A (en) * | 2015-02-02 | 2015-05-20 | 西安理工大学 | Modulation system for LED (Light-Emitting Diode) visible light communication uplink and building method thereof |
| CN105634953A (en) * | 2015-12-30 | 2016-06-01 | 中国人民解放军国防科学技术大学 | Blended data center networking and routing method based on visible light communication |
| US10337877B1 (en) * | 2016-10-03 | 2019-07-02 | Amazon Technologies, Inc. | Communication with mobile devices utilizing light emitting diodes |
| WO2019154065A1 (en) * | 2018-02-08 | 2019-08-15 | 华为技术有限公司 | Method and communication device for wireless optical communication |
| CN109302711A (en) * | 2018-08-24 | 2019-02-01 | 西安电子科技大学 | The energy-efficient deployment method of restructural Fat-Tree blended data central site network |
| CN113115134A (en) * | 2021-03-15 | 2021-07-13 | 清华大学 | Large-address space cross-domain optical interconnection method |
| CN112968804A (en) * | 2021-03-18 | 2021-06-15 | 河南大学 | Data center network fault diagnosis method based on fault-tolerant Hamiltonian |
Non-Patent Citations (4)
| Title |
|---|
| MISHEEL ENKHBAATAR: "Study on Automatic LED Monitoring System for Data Center Devices", 《IEEE XPLORE》, 21 January 2021 (2021-01-21) * |
| 何胜阳: "室内可见光通信系统关键技术研究", 《CNKI中国硕士论文全文数据库》, 15 January 2014 (2014-01-15) * |
| 张婵: "数据中心网络拓扑研究", 《CNKI中国硕士论文全文数据库》, 31 October 2014 (2014-10-31) * |
| 杨洋: "可见光通信系统中的OFDM调制技术研究", 《CNKI中国硕士论文全文数据库》, 15 September 2018 (2018-09-15) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115242653A (en) * | 2022-08-24 | 2022-10-25 | 南京邮电大学 | Hybrid data center network topology structure design method supporting VLC |
| CN115242653B (en) * | 2022-08-24 | 2023-12-12 | 南京邮电大学 | VLC-supporting hybrid data center network topology structure design method |
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