Method for utilizing television frequency band white space spectrums in Internet of vehicles

A technology of blank spectrum and Internet of Vehicles, applied in the field of wireless communication, can solve the problems of no network throughput design, etc., and achieve the effect of strong practicability

Inactive Publication Date: 2015-11-04
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

However, the author only considers the transmission of smaller information, and mainly through vehicle-to-vehicle communication rather than communication with the Internet of Vehicles base station
In the paper "Modeling and analysis of dsa-based vehicle-to-infrastructure communication systems", the author used queuing theory to model the opportunistic access of vehicles. However, the results were mainly considered from the perspective of delay, and did not target network throughput. volume design

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  • Method for utilizing television frequency band white space spectrums in Internet of vehicles
  • Method for utilizing television frequency band white space spectrums in Internet of vehicles
  • Method for utilizing television frequency band white space spectrums in Internet of vehicles

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Embodiment

[0049] This embodiment includes the following steps:

[0050] The first step is the resource modeling based on the spectrum geographic database, which is specifically as follows: In this embodiment, the following settings are made: the coverage area of ​​the car networking base station is 4000m, and the base station is located at 2000m. There are 3 blank channel resources, 509MHz, 575MHz and 635MHz, and the available ranges are [500,3500],[1000,3000],[1500,2500]. The available bandwidth of each channel is 5.33MHz, including 35 sub-channels (that is, the sub-channel width is 5.33 / 35MHz), the spatial granularity is set to 1m, the interval length of different speeds is set to 500m, and the signal-to-noise ratio in each interval is used. The minimum value within indicates. There are 6 vehicles in total. The current locations are 800, 1200, 1600, 2400, 2800, 3200, and the data requirements are 10, 20, 30, 30, 20, and 10 respectively. The unit is Mbit and the speed is 60km / h. Through...

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Abstract

The invention discloses a method for utilizing television frequency band white space spectrums in the Internet of vehicles, and utilizes the television frequency band white space spectrums to provide spectrum resource allocation of an Internet data transmission service for vehicles. The method includes resource modeling based on a spectrum geography database and resource allocation with maximized handling capacity, resource modeling based on the spectrum geography database specifically represents variation characteristics of resources in the form of space-frequency resource blocks, guaranteeing feasibility of resource allocation, resource allocation with maximized throughput allocates a subchannel to vehicles in a usable range of the subchannel according to a fixed time period through time domain and frequency domain division, and the objective of maximizing network throughput is guaranteed at the same time.

Description

Technical field: [0001] The present invention relates to the technical field of wireless communication, in particular to a method for data communication using TV frequency band blank spectrum resources in the Internet of Vehicles supported by the Internet of Vehicles base station. Background technique: [0002] The Internet of Vehicles is an emerging wireless network model in recent years. As the name suggests, its purpose is to provide data communication services for cars equipped with wireless transmission modules. Generally speaking, IoV can be divided into two types: IoV base station support and IoV base station support. The former can provide car users with high-speed Internet data services (such as file downloads, video streaming, etc.) through the communication between the car networking base station and the car. The function of the car networking base station here is the same as the base station in the cellular network or the wireless LAN. The function of the access poi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L29/08
CPCH04L67/12H04W72/53
Inventor 陈嘉成刘勃归琳熊箭潘成磊
Owner SHANGHAI JIAO TONG UNIV
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