Brent delay optimization method for mobile edge computing based on non-orthogonal multiple access in multi-base station scenarios

A non-orthogonal multiple access, Brent-style technology, applied in the field of mobile edge computing Brent-style delay optimization, can solve problems such as excessive system delay

Active Publication Date: 2018-12-25
ZHEJIANG UNIV OF TECH
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Therefore, the present invention researches Brent-style delay optimization design of mobile edge computing based on non-orthogonal multiple access in multi-bas...

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  • Brent delay optimization method for mobile edge computing based on non-orthogonal multiple access in multi-base station scenarios
  • Brent delay optimization method for mobile edge computing based on non-orthogonal multiple access in multi-base station scenarios
  • Brent delay optimization method for mobile edge computing based on non-orthogonal multiple access in multi-base station scenarios

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[0125] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0126] refer to figure 1 , a non-orthogonal multiple access-based mobile edge computing Brent-style delay optimization method in a multi-base station scenario. The implementation of this method can minimize the total system delay on the premise of meeting the data requirements at the same time. Improve the wireless network experience quality of the entire system. The present invention is applied to wireless networks, such as figure 1 in the scene shown. Designing an optimization method for this problem includes the following steps:

[0127] (1) There is a mobile user i under the coverage of a group of base stations integrated with edge servers, and the base station uses the set It means that mobile users use non-orthogonal multiple access technology to send data to the base station at the same time, and the amount of data that mobile users need to proces...

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Abstract

The invention relates to a mobile edge computing Brent-type time delay optimization method based on non-orthogonal multiple access in a multi-base station scenario, comprising the following steps: (1)there is one mobile user in the coverage area of BSs of an integrated edge server, and the optimization problem is described as a multi-variable non-convex optimization problem; (2) decomposing the problem (DM i) into two levels of optimization problems; (3) According to the bottom DM-I-E-Sub problem, a split-search method based on Lagrange multiplier is proposed to optimize the overall delay ofmobile subscriber i under the condition of the transmission time ti of mobile subscriber i. (4) For top-level DM-I-E-Top problem, Brent method is proposed to optimize the transmission time ti of mobile subscriber i. (5) The problem (DM i) is solved by iteration of the bottom problem and the top problem. The invention improves the transmission efficiency of the system, saves bandwidth resources, and obtains higher quality wireless network experience quality.

Description

technical field [0001] The invention relates to a non-orthogonal multiple access-based mobile edge computing Brent delay optimization method in a multi-base station scenario in a wireless network. Background technique [0002] The rapid development of cellular systems and mobile Internet services has produced a variety of computing-intensive applications, putting great pressure on mobile terminals with limited computing resources. Mobile edge computing (Mobile Edge Computing, MEC) enables mobile users (Mobile Users, MUs) to offload their computing tasks to cloud servers (such as base stations (Base Stations, BSs)) located at the edge of the cellular network. Challenging problems offer a promising approach. Considering the advantages of high transmission efficiency provided by Non-orthogonal Multiple Access (NOMA), we propose a non-orthogonal multiple access-based mobile edge computing Brent time delay optimization method. Contents of the invention [0003] The present i...

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Application Information

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IPC IPC(8): H04W24/02H04W28/02
CPCH04W24/02H04W28/0236
Inventor 吴远倪克杰陈相旭张成钱丽萍黄亮
Owner ZHEJIANG UNIV OF TECH
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