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A Dynamic Task Offloading Method for Heterogeneous Mobile Edge Networks

An edge network and dynamic task technology, applied in machine-to-machine/machine-type communication services, program loading/starting, advanced technology, etc., can solve the problems of reducing the battery life of IoT devices and large calculations, and achieve maximum time The average unloading revenue and the effect of ensuring stability

Active Publication Date: 2022-05-10
CHONGQING UNIV OF POSTS & TELECOMM
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such heterogeneous networks (Het Nets), there will be computationally intensive and complex tasks, such as surveillance, crowd awareness, and health monitoring, etc., and the energy consumption generated by a large number of IoT device communications will reduce the battery life of IoT devices ability

Method used

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  • A Dynamic Task Offloading Method for Heterogeneous Mobile Edge Networks
  • A Dynamic Task Offloading Method for Heterogeneous Mobile Edge Networks
  • A Dynamic Task Offloading Method for Heterogeneous Mobile Edge Networks

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] The present invention proposes a dynamic task offloading method for heterogeneous mobile edge networks, such as figure 1 , including the following steps:

[0058] S1. The mobile device generates computing tasks, and establishes two task queue models according to the attributes of the computing tasks. If I m,ij (t)=1, then the calculation task will be offloaded to the macro base station for processing, if I s,ij (t)=1, then the calculation task will be...

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Abstract

The present invention relates to the field of wireless communication technology, and in particular to a dynamic task offloading method for heterogeneous mobile edge networks, including generating computing tasks by mobile devices, establishing two task queue models according to the attributes of the computing tasks, and obtaining the processing of the offloading tasks Strategy; calculate the offloading utility, communication cost, and communication and computing energy consumption cost of offloading tasks; establish a system model for mobile devices in task offloading, and optimize the task offloading problem with the optimization goal of maximizing time-average offloading revenue; according to Li Yapunuo The optimization problem of task unloading is transformed into an optimization problem within a single time slot by using Hoffman optimization theory, and a new optimization equation is obtained by minimizing the sum of Lyapunov drift and penalty items; according to the attribute request of computing task unloading, a search tree is established to carry out Fast branch and delimitation can obtain the optimal unloading strategy and unloading task volume of the mobile device; the invention can ensure the stability of the system and maximize the time-average unloading revenue of the system.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a dynamic task offloading method for heterogeneous mobile edge networks. Background technique [0002] Driven by the mobile Internet and the Internet of Things (IoT), computing-intensive and latency-sensitive applications (such as smart home, smart city, autonomous driving, augmented reality / virtual reality) have experienced explosive growth, and many different types of Terminal equipment connections and diverse demands are increasing day by day. The traditional high-latency computing model can no longer meet the demands of intensive tasks. Millisecond-level end-to-end latency. Mobile Edge Computing (MEC) provides users with services and resources at the edge of the network close to mobile users, and is a computing paradigm with great development prospects. In addition, edge devices in MEC can be deployed on base stations, wireless access points, routers, etc., s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/1023H04W4/70G06F9/445G06F17/11
CPCH04L67/1023H04W4/70G06F9/44594G06F17/11Y02D30/70
Inventor 黄鸿锐姚枝秀鲜永菊李云吴广富徐泽金
Owner CHONGQING UNIV OF POSTS & TELECOMM
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