A D2D inter-cluster equalization method for power communication

An equalization method and power communication technology, applied in wireless communication, machine-to-machine/machine-type communication services, electrical components, etc., can solve the problems of increasing relay equipment, high construction costs, and inability to guarantee equipment safety, etc., to achieve improvement Access reliability and the effect of reducing access loss

Active Publication Date: 2020-09-25
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These existing methods all have a common disadvantage: a relay device needs to be introduced for data aggregation, and the problem of relay power supply (currently using emergency power supply) is a practical problem
In addition, the relay is installed outside the electrical room, which cannot guarantee the safety of the equipment
At the same time, increasing the relay equipment increases the construction cost
Therefore, the existing method is only for the pilot construction (exploratory) stage, not large-scale construction

Method used

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  • A D2D inter-cluster equalization method for power communication
  • A D2D inter-cluster equalization method for power communication
  • A D2D inter-cluster equalization method for power communication

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Embodiment 1

[0039] Based on the network architecture of D2D clustering, the present invention proposes a D2D inter-cluster equalization method, and the mathematical model adopted is as follows:

[0040] Suppose there are N CPE terminals U={u within the coverage of ENB 0 1 , u 2 ,...u N}, can form P clusters Ω={Ω 1 ,Ω 2 ,…Ω P},satisfy:

[0041]

[0042] Cluster members between different clusters are independent (non-overlapping), that is, no CPE belongs to two or more clusters. Definition||Ω k || is cluster Ω k The total number of inner CPE, including ||Ω k || - 1 cluster member and 1 cluster head.

[0043] order h 0-i for The LTE channel status (signal-to-noise ratio or received power) of the currently connected ENB. order h i-j for and Wi-Fi channel status. Define the channel state threshold as h LTE and h Wi-Fi , if and only if the channel state is greater than the threshold (h 0-i ≥ h LTE , h i-j ≥ h Wi-Fi ), the channel is connectable, that is, the QoS inde...

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Abstract

The invention discloses an electric power communication D2D inter-cluster equalization method, which comprises the following steps: judging whether the number of clusters is equal to the number of concurrent channels, if so, starting inter-cluster secondary equalization, and ending the step after the completion of the inter-cluster secondary equalization; if not, going to the step S2; judging whether the number of clusters is smaller than the number of concurrent channels or not, and if yes, performing intra-cluster decomposition; if not, performing inter-cluster merging; judging whether the number of the clusters is changed or not, and if yes, turning to the step S1; otherwise, ending the steps.

Description

technical field [0001] The present invention relates to the field of power communication, and more specifically, to a D2D inter-cluster equalization method for power communication. Background technique [0002] With the development of domestic distribution network and metering automation business, there are many difficulties in the application of optical fiber, power line carrier, and wireless public network technologies used in the existing main network in medium and low voltage distribution networks, while the power wireless broadband private network has non-line-of-sight transmission Strong capacity, large coverage, strong resistance to natural disasters, flexible access, convenient expansion and other advantages are ideal solutions for smart grid power distribution business access. At present, China Southern Power Grid adopts two methods: electric power wireless private network and operator wireless public network. figure 1 It shows the network schematic diagram of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/70H04W40/22H04W40/24
Inventor 黄宇
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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