An edge computing migration method for joint downlink and uplink in ultra-dense heterogeneous networks

A heterogeneous network and edge computing technology, applied in network traffic/resource management, advanced technology, climate sustainability, etc., can solve problems such as macro base station overload, micro base station underload, etc., to achieve optimal performance and minimize total delay Effect

Active Publication Date: 2021-11-02
NORTHWEST UNIV
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Problems solved by technology

For mobile cellular networks, user access depends on the received downlink signal reference power (RSRP, Reference Signal Receiving Power) from the base station, but it will cause macro base station overload and micro base station underload

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  • An edge computing migration method for joint downlink and uplink in ultra-dense heterogeneous networks
  • An edge computing migration method for joint downlink and uplink in ultra-dense heterogeneous networks
  • An edge computing migration method for joint downlink and uplink in ultra-dense heterogeneous networks

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0057] An edge computing migration method for joint downlink and uplink in an ultra-dense heterogeneous network, comprising the following steps:

[0058] In a time division duplex (TDD, Time Division Duplexing) system of an ultra-dense heterogeneous network, multiple users are covered by macrocells and microcells. Suppose N={1,2,3...N}, M={1,2,3...M} and P=[1,2,3...P] represent the set of all users, the set of all macrocells and all microcells . Each user has a task that requires computing, and can access macrocells or microcells, but cannot access macrocells and picocells at the same time, and it is assumed that each task is minimal and indecomposable.

[0059] In order to provide users with edge computing services, the macro cell or micro cell has an edge computing server respectively. For each...

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Abstract

An edge computing migration method that combines downlink and uplink in ultra-dense heterogeneous networks. In order to meet the computing-intensive and data-intensive delay-sensitive requirements of mobile intelligent applications, edge servers of different sizes in macro base stations and micro base stations need to be designed effectively. The joint uplink and downlink access and resource allocation method to reduce intelligent application delay. Firstly, the calculation migration problem of joint uplink and downlink is modeled as an optimization model for minimizing system delay, and at the same time, saving energy consumption of user equipment is considered. Since the joint downlink and uplink computation migration problem is a mixed integer programming problem, which is transformed into a resource allocation subproblem and a computation migration subproblem, an efficient joint downlink and uplink migration and resource Allocation method. Experimental results verify the effectiveness of the method in terms of system delay and energy consumption.

Description

technical field [0001] The invention belongs to the technical field of mobile communication cellular networks, and relates to joint downlink and uplink computing resource allocation, user uplink and downlink access, and joint allocation of downlink and uplink communication resources. migration method. Background technique [0002] Smart user terminals are widely used in various resource-demanding applications, such as augmented reality, multimedia applications, and autonomous driving, etc. Running smart applications on mobile devices results in long response delays, and energy consumption is also a limiting factor for mobile users in terms of available battery capacity. [0003] In order to handle the migration of computing-intensive tasks in real time, the proposal of edge computing can provide users with lower latency and higher performance computing services, while using network edge servers close to users to improve the energy efficiency of mobile devices. Different fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04W28/08H04L29/08
CPCH04L67/10H04L67/1008H04L67/101H04W24/02H04W28/08Y02D30/70
Inventor 郑杰刘艺郑勇王文涛许鹏飞汪霖高岭王海杨旭东
Owner NORTHWEST UNIV
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