Dynamic task unloading method for heterogeneous mobile edge network

An edge network and dynamic task technology, applied in machine-to-machine/machine-type communication services, program loading/starting, complex mathematical operations, etc., can solve the problems of reducing the battery life of IoT devices and large amount of calculations

Active Publication Date: 2021-04-02
CHONGQING UNIV OF POSTS & TELECOMM
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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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  • Dynamic task unloading method for heterogeneous mobile edge network
  • Dynamic task unloading method for heterogeneous mobile edge network
  • Dynamic task unloading method for heterogeneous mobile edge network

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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 of the embodiments of the present invention, not all of them. 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 calculatio...

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Abstract

The invention relates to the technical field of wireless communication, in particular to a dynamic task unloading method for a heterogeneous mobile edge network. The method comprises the following steps: enabling mobile equipment to generate a calculation task, establishing two task queue models according to the attribute of the calculation task, and obtaining a processing strategy of the unloading task; calculating the unloading effectiveness, the communication cost and the communication and calculation energy consumption cost of the unloading task; a system model of the mobile device in taskunloading is established, and the task unloading problem with the maximum time average unloading income as the optimization target is solved; converting a task unloading optimization problem into anoptimization problem in a single time slot according to a Lyapunov optimization theory, and solving a new optimization equation by minimizing the sum of Lyapunov drift and penalty terms; establishinga search tree according to the attribute request of computing task unloading, and performing quick branching and delimiting to obtain an optimal unloading strategy and an optimal unloading task amountof the mobile equipment. According to the invention, the stability of the system can be ensured, and the time average unloading income of the system is maximized.

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 Applications(China)
IPC IPC(8): H04L29/08H04W4/70G06F9/445G06F17/11
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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