Edge computing user task unloading method

An edge computing and task technology, applied in the field of mobile communication, can solve problems such as delay and time required, and achieve the effect of overcoming the requirements of long time consumption, speeding up the cooling speed, and ensuring search accuracy.

Active Publication Date: 2019-11-08
胡洋
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Problems solved by technology

[0005] In order to make full use of the computing power of the edge server and alleviate its own energy consumption pressure, mobile devices choose to upload tasks to the MEC server for computing. The fast computing power of the MEC server can shorten the time, but it takes time to upload tasks, and multiple user tasks queue up on the MEC server. Will cause delay, so a good task scheduling method is required

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Embodiment Construction

[0046] The implementation steps of the present invention will be described below in conjunction with the accompanying drawings of the present invention

[0047] Step 1: If figure 2 As shown, it is the user task offloading scenario in a single cell. There are microcell base stations and picocell base stations in the cell where the user resides. Each base station is equipped with a MEC server, and all users can connect to all The transmit power of all user equipment and the processing capability of the MEC server of each base station are known.

[0048] Step 2: The user calculates the co-channel interference suffered by himself, such as figure 1 As shown, for any user A in the hexagonal cell, there are 6 co-channel users of the co-channel cell on the circumference of the distance D from it, and since they use the same frequency, they will interfere with A , for the sake of simplicity, the co-channel interference of user i is calculated as follows:

[0049]I i =6UE i K(1+D ...

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Abstract

The invention discloses an edge computing user task unloading method in the field of mobile communication. The task unloading problem for a user to a base station in the dense cellular network is notonly influenced by environmental noise, but also influenced by same-channel interference. According to the method, a user task unloading condition when the same-channel interference exists in the heterogeneous network is considered; a communication model is established. An algorithm based on numerical estimation is proposed to estimate the concept of the initial temperature of a simulated annealing algorithm. The approximate initial temperature is searched by adopting variable-step-length numerical estimation. The problem that algorithm time is too long due to the fact that random initial temperature is used is solved, then the simulated annealing algorithm is used for circularly changing a target server of a user, the searching process of a solution is controlled through a cooling function combining logarithms and polynomials, and a task unloading scheme enabling the average unloading time delay of the user to be minimum is searched for. Compared with a traditional method, the methodcan obtain an optimization scheme more quickly, and has better practicability.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a method for unloading tasks of edge computing users. Background technique [0002] Network applications require more and more data, and the real-time requirements are also getting higher and higher. The traditional data request method of directly connecting the client to the cloud server becomes difficult to meet the quality of service (Quality of Service, QoS). The main bottleneck lies in the large amount of data. For the traffic pressure caused by the backhaul link of the core network, and the delay problem caused by too many data transmission links. [0003] Mobile devices have more and smarter service functions, which means that more power consumption is required to support higher processing capabilities, and are more indispensable in real life, which makes the frequency and time of mobile devices used are very different. However, since the most important advanta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/06H04W28/02H04W52/02H04B17/336
CPCH04W24/06H04W28/0231H04W52/0206H04B17/336Y02D30/70
Inventor 胡洋
Owner 胡洋
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