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A Resource Management Method Based on Train Position and Throughput Maximization

A resource management and throughput technology, applied in the field of wireless spectrum resource management, can solve problems such as few researches, achieve the effect of large throughput and eliminate interference

Inactive Publication Date: 2020-04-28
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, little research has been done on the interference caused by the sharing of the same frequency spectrum resources for vehicle-vehicle, vehicle-ground communications in urban rail transit

Method used

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  • A Resource Management Method Based on Train Position and Throughput Maximization
  • A Resource Management Method Based on Train Position and Throughput Maximization
  • A Resource Management Method Based on Train Position and Throughput Maximization

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Embodiment

[0050] Embodiment: a wireless spectrum resource management method based on train position and throughput maximization, such as figure 1 , figure 2 , image 3 and Figure 4 shown.

[0051] A resource management method based on train position and throughput maximization, considering vehicle-to-vehicle communication multiplexing vehicle-to-ground communication uplink spectrum resource or vehicle-to-vehicle communication multiplexing vehicle-to-ground communication downlink spectrum The interference situation generated when resources are used, and the interference elimination methods for the reuse of uplink spectrum resources and the reuse of downlink spectrum resources are studied respectively. It mainly includes the following three points:

[0052] Step 1. Analysis of interference caused by spectrum resource reuse:

[0053] In the way of spectrum resource multiplexing, since vehicle-to-vehicle communication and vehicle-to-ground communication use the same wireless spectrum...

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Abstract

A resource management method based on train position and throughput maximization, which analyzes the interference in the uplink or downlink spectrum resources of the vehicle-to-vehicle communication multiplexing vehicle-to-ground communication train; selects the appropriate vehicle-to-ground communication Trains, let the train-car communication multiplex its uplink or downlink spectrum resources; The ratio threshold and the SINR threshold of the received signal of the vehicle-to-vehicle communication link are sequentially judged whether the multiplexing conditions are met, and the trains whose spectrum resources are reused in the vehicle-to-ground communication are determined; - Based on the uplink or downlink spectrum resources of ground communication, the total throughput of the system is maximized through power control. The invention reduces / eliminates the interference between vehicle-vehicle communication and vehicle-ground communication, maximizes the number / success rate of establishment of vehicle-vehicle communication connections, and maximizes the total throughput of the system.

Description

technical field [0001] The invention relates to a wireless spectrum resource management method based on maximizing train position and throughput, and belongs to the technical field of spectrum resource management for urban rail transit train control information transmission. Background technique [0002] There are two ways to allocate spectrum resources for vehicle-to-vehicle communication. One is to allocate part of the spectrum resources for vehicle-to-ground communication dedicated to vehicle-to-vehicle communication, and the other is to allow vehicle-to-vehicle communication to multiplex vehicle-to- - Spectrum resources of ground communication trains to realize direct communication. In urban rail transit, in order to improve the spectrum efficiency and allow more resources to be used to transmit train control integrated services, such as CCTV, PIS, etc., it is hoped that the realization of vehicle-to-vehicle communication will improve the performance of the train control...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/08H04L29/08
CPCH04L67/12H04W72/0453H04W72/21H04W72/541
Inventor 滕昌敏步兵
Owner BEIJING JIAOTONG UNIV
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