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LTE-based radio resource allocation method of Internet of vehicles

A wireless resource and allocation method technology, applied in network traffic/resource management, wireless communication, wireless communication services, etc., can solve problems such as excessive base station load and lack of spectrum resources

Active Publication Date: 2016-02-03
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a wireless resource allocation method that solves the problems of excessive base station load and lack of spectrum resources when LTE is applied to the Internet of Vehicles to a certain extent.

Method used

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  • LTE-based radio resource allocation method of Internet of vehicles
  • LTE-based radio resource allocation method of Internet of vehicles
  • LTE-based radio resource allocation method of Internet of vehicles

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Embodiment 2

[0094]In this example, the wireless resource allocation method based on the LTE Internet of Vehicles described in the above-mentioned embodiment 1 is simulated and analyzed, and compared with the optimal resource allocation algorithm. First, a mobile node model must be established. In this model, there are 4 streets around the base station of the cell , each street has two lanes. Vehicle nodes are randomly distributed on the street. Vehicles move at a constant speed, but the speed is randomly distributed in a certain range. D2D users are randomly distributed among vehicle nodes, and the number of cellular users is constant. This example Figure 6 to Figure 13 Among them, the partition algorithm represents the wireless resource allocation method based on the LTE Internet of Vehicles described in Embodiment 1. In the simulation experiment, in order to compare with the optimal algorithm in the prior art, the method described in Embodiment 1 based on The radio resource allocation ...

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Abstract

The invention provides an LTE-based radio resource allocation method of Internet of vehicles. The method comprises the following steps: step S1, dividing priority for node communications according to node communication service characteristics and interference of node to a base station; step S2, building a position division model, wherein the base station dispatches D2D users in sequence according to the priority and selects candidate resource share nodes according to distance and link loss factors; and step S3, selecting cellular user resources with smallest interference in a region where the candidate resource share nodes are located as cellular link resources for D2D communication multiplex. the number of nodes needed to be fed back to the base station in the invention is obviously smaller than that in optimal algorithm, thereby largely reducing the load of the base station; in addition, the operating time of the algorithm used in the invention is obviously shorter than that of the optimal algorithm, thereby effectively reducing processing delay.

Description

technical field [0001] The present invention relates to a wireless resource allocation method, in particular to a wireless resource allocation method based on LTE Internet of Vehicles. Background technique [0002] The Internet of Vehicles refers to the dynamic mobile communication system that realizes the interaction between vehicles and vehicles, vehicles and roads, vehicles and people, vehicles and sensing devices, and realizes network communication between vehicles and the public. It can realize information sharing through interconnection between vehicles, vehicles and people, and vehicles and roads, and collect information on vehicles, roads and the environment. At present, the communication technologies used in the Internet of Vehicles mainly include VANET and LTE. VANET is a special case of mobile autonomous network (Ad-hoc). There is an essential difference between VANET and traditional cellular wireless networks. Communication between mobile nodes is carried out wi...

Claims

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Application Information

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IPC IPC(8): H04W28/16H04W4/00
CPCH04W28/16
Inventor 杨志华赵尚春袁鹏李国治
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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