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Mixing dynamic clustering method in CoMP based on coalition games

An alliance and clustering technology, applied in the field of communication, can solve the problems of not considering the influence of cooperation gain and cooperation overhead, not considering the influence of cooperation complexity, and the large amount of calculation of cell cooperation clusters, so as to ensure that the complexity is manageable, Reduce the amount of calculation and achieve the effect of collaborative gain

Active Publication Date: 2017-12-01
XIDIAN UNIV
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Problems solved by technology

The shortcomings of this method are: firstly, this method divides CoMP users based on SINR, and does not consider the influence of adjacent base stations on CoMP users' cooperation gain and cooperation overhead
The disadvantage of this method is that this method does not consider the influence of cooperation on complexity. When there are many cooperative users served by the base station, the base station participates in multiple cooperative clusters, which makes the cooperation process complicated and difficult to manage.
The disadvantage of this method is: when the user type is CoMP-MU, the algorithm adopts the greedy algorithm to select the cell coordination cluster, which requires a large amount of calculation and high complexity

Method used

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  • Mixing dynamic clustering method in CoMP based on coalition games
  • Mixing dynamic clustering method in CoMP based on coalition games
  • Mixing dynamic clustering method in CoMP based on coalition games

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] Refer to attached figure 1 , the concrete steps of the present invention are described as follows:

[0042] The application scenario of the present invention is an LTE-A network, in which downlink signal transmission of multi-cell multi-user MIMO is mainly considered, and the frequency reuse factor between base stations is 1. For the scene diagram of LTE-A network, please refer to the attached figure 2 . figure 2 It contains ten base stations and ten users. The solid line in the figure is the useful signal transmitted by the base station to its corresponding cellular user, and the dotted line in the figure is the interference signal transmitted by the adjacent base station to the cellular user. For example, user 1 receives the signal from the adjacent base station 2. For the serious interference signals transmitted by base station 3 and base station 4, user...

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Abstract

The invention discloses a mixing dynamic clustering method in CoMP based on coalition games. The method mainly solves problems in the prior art that implementation complexity in a CoMP system clustering scheme is relatively high and performance improvement is limited. Main steps comprises: dividing coordinated multiple points transmission CoMP users, establishing a pre-coordinated cluster, generating a preference list, reporting related information, establishing a stable coalition, and forming a coordinated cluster. The invention provides the mixing dynamic clustering method based on coalition games, realizes compromises of gain and complexity in a static clustering technology and a dynamic clustering technology, and effectively improves user throughout and resource utilization rate, and low complexity improves network performance.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a hybrid dynamic clustering method based on alliance game CoMP (Coordinated Multiple Points Transmission / Reception) in the technical field of wireless network. According to the transmission power, channel gain, preference list and overlapping degree of base stations collected by the user side, the present invention implements a hybrid dynamic clustering method based on alliance game theory, effectively improves user throughput and resource utilization, and improves network performance. Background technique [0002] With the rapid development of mobile wireless networks, the conflict between scarce spectrum resources and extreme data service requirements is becoming increasingly serious. In order to meet the needs of future wireless networks, densely deploying heterogeneous small base stations (Small Base Stations, SBSs) and adopting the same-frequency networking stru...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/024H04W48/20H04W92/20
CPCH04B7/024H04W48/20H04W92/20
Inventor 杨春刚肖佳李建东李丽颖邵晓强张越王玲霞
Owner XIDIAN UNIV
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