Femtocell User Clustering Method Based on Reliable Communication in Cognitive Heterogeneous Networks

A technology of cognitive heterogeneous network and home base station, which is applied in the field of clustering of home base station users based on reliable communication in cognitive heterogeneous network

Active Publication Date: 2017-07-28
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] Through a large number of investigations and based on the above discussion, the existing interference research methods have not improved spectrum utilization while reducing co-channel interference and ensuring reliable communication for femtocell users in the case of scarce spectrum resources.

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  • Femtocell User Clustering Method Based on Reliable Communication in Cognitive Heterogeneous Networks
  • Femtocell User Clustering Method Based on Reliable Communication in Cognitive Heterogeneous Networks
  • Femtocell User Clustering Method Based on Reliable Communication in Cognitive Heterogeneous Networks

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Embodiment Construction

[0020] A non-limiting embodiment is given below in conjunction with the accompanying drawings to further illustrate the present invention. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0021] 1 Network Model and Assumptions

[0022] Assume that in a cognitive heterogeneous network, N home base stations exist in the coverage area of ​​the macro base station. There are overlapping coverage areas among the home base stations, and a home base station user FUE1 is located at the edge of the coverage area of ​​the FBS1 and is also within the coverage area of ​​the FBS2. When the home base station FBS2 is communicating with the home base station user FUE2 at its edge, the downlink transmission of the home base station FBS1...

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Abstract

The invention discloses a method for clustering home base station users based on reliable communication in a cognitive heterogeneous network. , and then, under the management of the centralized controller, the path loss information between all home base stations with communication users is obtained, and this information is taken as the interference between home base station users. Finally, the unclustered home base station users randomly select an existing home base station user cluster, and calculate the interference received by each home base station. If all home base stations in the cluster meet the interference restriction conditions, the home base station user joins the cluster. Otherwise, select other clusters to determine whether the conditions for joining other clusters are met. The clustering method improves the communication stability and anti-interference ability of the home base station.

Description

technical field [0001] The present invention aims at research on interference management among home base station users in a cognitive heterogeneous network, belongs to the technical field of cognitive wireless network communication, and in particular relates to a large number of home base station users within the coverage area of ​​a macro base station, and these home base station users use Research on methods to effectively suppress mutual interference and ensure reliable communication of home base station users when spectrum resources are limited. Background technique [0002] In recent years, with the development of the mobile Internet and the emergence of a large number of smart terminals, wireless data services have exploded. At the same time, due to the increasingly powerful functions of mobile terminals, there must be higher requirements for the rate of real-time and non-real-time data services. It has been proven that more than 50% of total phone calls and 70% of da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08
Inventor 李云刘瑞雪曹傧刘期烈
Owner CHONGQING UNIV OF POSTS & TELECOMM
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