A utility function-based optimization method for fair allocation of dominant resources in Internet of Vehicles

A utility function and allocation optimization technology, applied to services based on specific environments, vehicle components, vehicle wireless communication services, etc., to achieve the effect of improving utilization and saving equipment resources

Active Publication Date: 2022-06-07
HUAQIAO UNIVERSITY +1
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  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a method for optimizing the fair allocation of dominant resources in the Internet of Vehicles based on utility functions, and solve the problem of how to allocate resources reasonably and effectively in the Internet of Vehicles to meet the QoS and fairness requirements of vehicle users. question

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  • A utility function-based optimization method for fair allocation of dominant resources in Internet of Vehicles
  • A utility function-based optimization method for fair allocation of dominant resources in Internet of Vehicles
  • A utility function-based optimization method for fair allocation of dominant resources in Internet of Vehicles

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Embodiment Construction

[0077] The method of the present invention will be further described below in conjunction with the accompanying drawings.

[0078] In this embodiment, in order to obtain the data of the user service flow required in the implementation process, a Matlab tool is used for simulation, the QoS requirements of the user are randomly generated, and resource allocation is performed accordingly. In order to distinguish service types, session and flow classes are defined as delay-sensitive applications, and the value ranges of packet delay and packet loss rate are [0.1s, 2s] and [10%, 50%] respectively, while The interaction class and the background class are defined as packet loss-sensitive applications, and their packet delay and packet loss rate ranges are [2s, 5s] and [1%, 10%], respectively, so that the application type can be matched with the QoS requirements. In fact, different application types use different performance values. See Table 1, where the network traffic intensity is...

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Abstract

The invention discloses a method for optimizing the fair allocation of dominant resources in the Internet of Vehicles based on a utility function. Firstly, a utility function with QoS indicators (packet delay and packet loss rate, etc.) as independent variables is constructed; and then the M / D The / 1 queuing model establishes the functional mapping relationship between the QoS index and the number of wireless network resources (bandwidth and cache, etc.); then designs an allocation algorithm for a dominant resource fairness mechanism, aiming at maximizing vehicle user utility, and assisting The user's dominant resources are allocated fairly and reasonably based on user weight priority. The utility function of the present invention can effectively represent the satisfaction degree of the user to the service. By establishing a mapping model for the QoS index and the resource quantity, the user's QoS performance requirement can be converted into the required resource quantity to be allocated. While allocating on-demand, it maximizes user satisfaction with QoS requirements, improves user priority, and maximizes resource utilization.

Description

technical field [0001] The invention relates to an optimization method for fair allocation of vehicle networking dominant resources based on a utility function, and belongs to the fields of wireless network resource management and intelligent traffic service quality. Background technique [0002] In recent years, applications and services on the mobile Internet have emerged one after another, and the transmission rate of bandwidth has been significantly improved, which has boosted the popularization and innovation of smart transportation applications. The Internet of Vehicles is one of the development trends of the intelligent transportation system, and ensuring the Quality of Service (QoS) of various services in the network is the key to the core technology. However, the high-speed movement of vehicles in the Internet of Vehicles and the preemption of limited wireless channel resources by various priority services require different resource allocation strategies for differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L47/80H04W4/40H04W24/02
CPCH04L47/805H04W4/40H04W24/02Y02T10/40
Inventor 蒋文贤吴晶晶周雅琴王田周长利
Owner HUAQIAO UNIVERSITY
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