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Dynamic wireless resource distribution algorithm based on load balancing

A wireless resource and load balancing technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problems of not considering load balancing, unable to guarantee the stability of the network state, etc., and achieve the effect of avoiding unbalanced distribution

Active Publication Date: 2018-05-25
国网河南能源互联网电力设计院有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method allocates resource blocks according to the user mode, it does not take load balancing into account and cannot guarantee the stability of the subsequent network state.

Method used

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  • Dynamic wireless resource distribution algorithm based on load balancing
  • Dynamic wireless resource distribution algorithm based on load balancing
  • Dynamic wireless resource distribution algorithm based on load balancing

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Embodiment 1

[0031] Embodiment 1. First, the present invention establishes a dynamic virtual resource allocation model; next, the present invention defines a virtual network mapping problem including two parts, virtual node mapping and virtual link mapping, and defines the mathematical representation of the objective function; finally, The present invention designs a dynamic wireless resource allocation algorithm based on load balancing to solve this problem;

[0032] The underlying network uses a weighted undirected graph G S =(N S , L S ) means, where N S and L S are the underlying node set and link set, respectively. for any physical node N is the number of physical nodes. Its position and node type are used respectively express. for any connected node and physical link l S (i,j)∈L S |i≠j, i, j∈{1,2,…,N} and its bandwidth is B(l S ). A slave physical node to the target physical node The path of is denoted as p S (i,j)∈P S , the set of all physical acyclic paths i...

Embodiment 2

[0091] Embodiment 2, on the basis of Embodiment 1, simulate and verify the algorithm data of the present invention, and use a network topology generator to simulate the physical topology of a city's intelligent power distribution communication network to generate a physical network topology with 16 nodes. Assume that two physical nodes are considered connectable within the propagation radius. The physical spectrum resources of all nodes are consistent, that is, the bandwidth is the same. The virtual network requests to simulate the actual situation of the business carried by the city's power distribution communication network. According to different business types, virtual network requests are divided into 5 categories, respectively providing power distribution communication network protection, video, data acquisition and monitoring and control (Supervisory Control And Data Acquisition, SCADA), power distribution automation, and smart meter reading services Table 1 lists the ...

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Abstract

The invention discloses a dynamic wireless resource distribution algorithm based on load balancing. The algorithm comprises a bottom layer network resource updating mechanism, virtual network requestranking rules and a resource distributing mechanism. The algorithm is characterized in that according to the bottom layer network resource updating mechanism, in a time window, priority processing isperformed on departure of a virtual network request, bottom layer network resources occupied by the request are released, and then the corresponding bottom layer network resources are occupied when the virtual network mapping is successful; the algorithm has the advantages of being high in service isomerism and large in QoS request difference, by considering multiple service quality factors, a reasonable QoS mechanism and a service priority mechanism are built, a disturbance problem of a wireless network and the load balance strategy of dynamic resource distribution are considered, dynamic distribution for matched electric communication network wireless virtual resource can be achieved, bottom layer physical network resources can be distributed to multiple isolated virtual networks bearingdifferent services according to the real-time service requirement, and the network operation benefit is improved.

Description

technical field [0001] The invention relates to the technical field of dynamic wireless resource allocation algorithms, in particular to a dynamic wireless resource allocation algorithm based on load balancing. Background technique [0002] In recent years, the State Grid has vigorously developed the electric power wireless network, which is suitable for terminal access and information transmission of power distribution business due to its high access flexibility and low cost. The power wireless network and the power distribution wired network jointly realize the interconnection between the power distribution business terminal and the backbone communication network, and become a key link to ensure the reliability of power supply and improve the operation efficiency and service quality of the power grid. However, the power wireless network still has the problems of low network utilization, low business isolation, and network service quality to be optimized. [0003] At prese...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W28/02H04W28/16H04L29/08
CPCH04W28/0247H04W28/0268H04W28/08H04W28/16H04L67/61
Inventor 张筱筠舒新建王世文张勇王春迎吴利杰盛磊张宁宁王慕维
Owner 国网河南能源互联网电力设计院有限公司
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