Mobile edge computing network task high-safety unloading resource allocation method based on NOMA

A technology of safe offloading and resource allocation, applied in the field of communication, can solve difficult problems and achieve the effect of ensuring safe transmission and improving spectrum efficiency

Active Publication Date: 2020-09-01
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

This problem is non-convex and difficult to solve

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  • Mobile edge computing network task high-safety unloading resource allocation method based on NOMA
  • Mobile edge computing network task high-safety unloading resource allocation method based on NOMA
  • Mobile edge computing network task high-safety unloading resource allocation method based on NOMA

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Embodiment Construction

[0034] The technical scheme of the present invention is described in detail below in conjunction with example and accompanying drawing:

[0035] A NOMA-based mobile edge computing network task high security offload resource allocation method, the allocation method specifically includes the following steps:

[0036] Step 1.1: According to the partial unloading mode of user information, set up an AP integrated with a MEC server and a communication system of two users m and n; the AP and the two users m and n in the communication system are equipped with a single antenna, Wherein the uplink of the communication system adopts the access mode of NOMA for information transmission, and its wireless channel adopts the frequency non-selective quasi-static block fading model;

[0037] Step 1.2: According to the transmission characteristics of NOMA, obtain the SINR of user m and user n on the AP side respectively;

[0038] Step 3: Suppose the eavesdropper eliminates the interference fro...

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Abstract

The invention discloses a mobile edge computing network task high-safety unloading resource allocation method based on NOMA. Under the conditions that the channel state information of an eavesdropperis not completely known and the safety rate and the transmission power are limited, information is safely unloaded by maximizing the minimum anti-eavesdropping capability of the uplink NOMA user. Twousers simultaneously unload respective partial tasks to an access point equipped with a mobile edge computing server at the periphery in a resource block sharing manner through a NOMA uplink so as tocarry out rapid processing; a positive auxiliary role in the mobile user computing task is realized, and it is ensured that the mobile user side quickly executes the computing task with low delay tolerance and high complexity. The method has the advantage that under the condition that the actual eavesdropper channel state information is not completely known, safe unloading of the information is ensured by enhancing the anti-eavesdropping capability. The invention also defines an interrupt event based on probability analysis so as to measure the communication performance of the system and evaluate influence of the sending power and the unloading task load on the system performance.

Description

technical field [0001] The invention belongs to the field of communication technology, and relates to a NOMA-based mobile edge computing network task high security offloading resource allocation method. Background technique [0002] Recently, large wireless devices have been widely deployed and mobile data traffic has exploded. Due to the constraint of equipment size and the consideration of product cost, the operation of network mobile terminal equipment is often limited by power. In addition, weak computing power cannot support continuous high-performance computing for an increasing number of applications, such as: virtual / augmented reality, remote surgery, and autonomous driving. To solve these problems, mobile edge computing (MEC) and non-orthogonal multiple access (NOMA) are considered to be two very promising technologies in the Internet of Things. [0003] The basic idea of ​​mobile edge computing is to utilize active devices in the radio access network. There are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/382H04B17/336H04B17/345H04B17/391
CPCH04B17/382H04B17/336H04B17/345H04B17/3911
Inventor 胡冰孙知信陈松乐孙哲
Owner NANJING UNIV OF POSTS & TELECOMM
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