Computing efficiency optimization method in millimeter wave mobile edge computing system based on reconfigurable intelligent surface

A computing efficiency, edge computing technology, applied in wireless communication, electrical components, etc., can solve problems such as not much research

Active Publication Date: 2021-07-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, there are not many existing studies on the combination of MEC, mmWave and RIS technologies, especially there is almost no computationally efficient resource allocation method for mmWave-MEC systems. Based on the above discussion, the present invention studies a Computational Efficiency Optimization Method in Millimeter Wave Mobile Edge Computing System

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  • Computing efficiency optimization method in millimeter wave mobile edge computing system based on reconfigurable intelligent surface
  • Computing efficiency optimization method in millimeter wave mobile edge computing system based on reconfigurable intelligent surface
  • Computing efficiency optimization method in millimeter wave mobile edge computing system based on reconfigurable intelligent surface

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with the accompanying drawings.

[0059] 1. System model

[0060] The present invention relates to a millimeter wave mobile edge computing system based on Reconfigurable Intelligent Surface (RIS) such as figure 2 As shown, it consists of K single-antenna users, a RIS, and a millimeter-wave base station connected to a high-performance MEC server. Since the direct link between users and the base station is completely blocked by obstacles, users need to use RIS to offload their tasks to On the MEC server of the base station, the base station adopts a fully connected hybrid beamforming architecture, equipped with N antennas, N RF RF links, N power amplifiers and NN RF phase shifters, and each antenna passes through a power amplifier and N RF Phase shifters are connected to all RF links, and the hybrid beamforming of the base station consists of a digital beamforming matrix and digital beamforming mat...

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Abstract

The invention discloses a computing efficiency optimization method in a millimeter wave mobile edge computing system based on a reconfigurable intelligent surface, and the method comprises the steps: building a computing efficiency optimization model based on a maximum-minimum fairness criterion in a partial unloading mode; performing combined optimization on hybrid beam forming of a base station, passive beam forming of a reconfigurable intelligent surface, transmitting power of each user and frequency of a local central processing unit, and giving a calculation efficiency optimization algorithm based on penalty non-precision block coordinate descent to obtain the combined optimization method. The joint optimization method provided by the invention is effective.

Description

Technical field: [0001] The invention belongs to the field of mobile communication, and relates to a resource allocation method of a mobile communication system, in particular to a calculation efficiency optimization method in a millimeter wave mobile edge computing system based on a reconfigurable intelligent plane. Background technique: [0002] Nowadays, with the rapid development of mobile communication technology and Internet of Things technology, the number of mobile devices has shown explosive growth. How to allocate limited resources to accommodate a large number of deployed mobile devices is an urgent task to be solved, and various emerging multimedia services require data processing. Real-time, security, and transmission speed also put forward certain requirements. In order to meet user service quality, MEC technology is considered to be a promising emerging technology in the future communication field. Its main feature is the combination of mobile computing, networ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/08
CPCH04W72/53H04W72/542Y02D30/70
Inventor 蔡嘉丽虞湘宾黄旭党小宇潘翠敏黎宁
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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