An ultra-dense millimeter wave D2D communication interference management method

A management method and communication interference technology, applied in wireless communication, machine-to-machine/machine-type communication services, sustainable communication technology, etc. Effect

Active Publication Date: 2021-08-24
NORTHWEST UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art that beamwidth selection and resource allocation cannot be managed simultaneously in terms of interference, and to provide an ultra-dense millimeter-wave D2D communication interference management method based on joint beamwidth selection and resource optimization to solve the problem. The above shortcomings are to further increase the number of parallel transmissions of millimeter wave D2D communication in ultra-dense scenarios, effectively improving the system and speed

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  • An ultra-dense millimeter wave D2D communication interference management method
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  • An ultra-dense millimeter wave D2D communication interference management method

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[0069] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0070] Refer to the attached Figure 1-2 , an ultra-dense millimeter wave D2D communication interference management method, comprising the following steps,

[0071] Step 1: System modeling and interference management problem modeling

[0072] A. System Modeling

[0073] like figure 1 , two mobile devices communicate directly to form a D2D communication pair. Assume Represents the collection of all D2D communication pairs. To simulate ultra-dense scenarios, all D2D links are assumed to be randomly distributed in a small circular area. The D2D communication link transmits on the mmWa...

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Abstract

The present invention relates to an ultra-dense millimeter-wave D2D communication interference management method, which mainly solves the shortcomings of the existing methods that the selection of beam width and resource allocation cannot be taken into account in the management of interference at the same time, and provides an ultra-dense ultra-dense technology based on joint beam width selection and resource optimization. The interference management method for dense millimeter-wave D2D communication includes the following steps: first, system modeling and interference management problem modeling are performed on the millimeter-wave D2D communication system; secondly, beamwidth selection is performed by particle swarm optimization to obtain an optimal beamwidth vector; finally Optimum joint power and time slot allocation vectors are obtained by using resource optimization based on convex optimization approximation; the interference management method based on joint beam width selection and resource optimization proposed by the present invention can effectively manage interference, increase the number of parallel transmission links, and obtain more High system and speed.

Description

technical field [0001] The present invention relates to the field of millimeter wave communication, specifically for ultra-dense millimeter wave D2D communication systems, an interference management method based on joint beam width selection and resource optimization is designed to effectively manage interference problems between different millimeter wave D2D communication links, so that The ultra-dense millimeter wave D2D communication system and rate have been greatly improved. Background technique [0002] Aiming at the problem of interference management in the millimeter wave D2D communication system, an interference management method based on transmission scheduling or resource allocation is proposed in the prior art to suppress interference in the millimeter wave communication system and increase the number of concurrent transmission links. However, these schemes all assume fixed antenna beamwidths and do not consider the impact of beamwidth selection on concurrent tra...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/70H04W72/08H04L12/24
CPCY02D30/70
Inventor 李小亚贺晨张汉卿曹正文彭进业郑杰祁媚张明慧
Owner NORTHWEST UNIV
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