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Interference management mechanism based on partial frequency reuse and power control

A frequency reuse and user technology, applied in power management, advanced technology, electrical components, etc., can solve complex problems, achieve low complexity, improve network throughput, and improve utilization

Inactive Publication Date: 2014-08-13
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
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Problems solved by technology

Haipeng Lei proposed a new FFR mechanism from the perspective of frequency allocation, but this mechanism requires more complex hardware to support; Ronald Y.Chang proposed a dynamic FFR mechanism based on graph theory coloring algorithm, which can balance network load and improve Throughput; Mohamad Assaad abstracted resource allocation and interference coordination into an optimization problem from a theoretical point of view and calculated the theoretical optimal frequency reuse

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  • Interference management mechanism based on partial frequency reuse and power control
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  • Interference management mechanism based on partial frequency reuse and power control

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] implement

[0027] The present invention is an interference management mechanism proposed for a high-intensity deployed WLAN network based on the IEEE802.11ac standard. The application network model of this embodiment is specifically as follows: the network is deployed in a cellular structure of 19 cells, and the cell coverage radius is 10 meters. Each cell has a service AP placed in the center of the cell, and there are multiple randomly distributed users in the cell. The number of users is approximately equal. Users in each cell only communicate with the serving AP in the cell. All APs a...

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Abstract

The invention discloses an interference management mechanism based on partial frequency reuse and power control. The interference management mechanism based on partial frequency reuse and power control is suitable for a WLAN network which is deployed densely and based on IEEE802.11ac. Users in a cell are divided into cell central users and cell peripheral users according to the distance from each user to a service AP, and after a wireless communication channel is cut into orthogonal sub-channels, channel distribution is carried out based on the principle that channels of peripheral users of adjacent cells are not overlapped to eliminate co-channel interference among the cells. On the basis, the mechanism can divide the cells dynamically according to the density of the users in the cells, adjusts the emission power while adjusting channel distribution, and guarantees reasonable configuration of wireless resources. The interference management mechanism based on partial frequency reuse and power control can effectively lower co-channel interference among the cells, improve the handling capacity of the network, and meanwhile lower energy consumption.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and is an adaptive interference management mechanism based on wireless resource allocation. This mechanism is mainly used in dense cellular deployment wireless LANs based on the IEEE802.11ac standard, which can effectively reduce inter-cell interference, improve network throughput, and reduce energy consumption. Background technique [0002] In recent years, wireless communication technology has developed vigorously and has become one of the most popular communication technologies at present. As an important branch of wireless communication technology, wireless local area network (WLAN) technology is widely respected by users due to its advantages such as wide coverage, fast transmission speed, simple and flexible network deployment, and low overhead. As more and more mobile terminals support the WLAN function, the WLAN has gradually become an indispensable part of people's lives....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W52/18H04W72/08H04W72/54
CPCY02B60/50Y02D30/70
Inventor 孙咏梅蔡天净纪越峰
Owner BEIJING UNIV OF POSTS & TELECOMM
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