User dynamic grouping method in wireless heterogeneous network system

A wireless heterogeneous network and user grouping technology, applied in the field of user dynamic grouping of wireless heterogeneous network systems, can solve the problem that the cellular network and the short-distance communication network cannot be well integrated, and achieve the improvement of energy efficiency and stability, and efficient cooperation. The effect of communication

CN103179674AActive Publication Date: 2013-06-26CHONGQING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-06-26

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Abstract

The invention provides a user dynamic grouping method in a wireless heterogeneous network system, belonging to the technical field of mobile communication. The method comprises the following steps of: calculating communication energy efficiency of all users in the system and average energy efficiency of the system; determining the user group number according to energy efficiency performance index; and finishing user grouping, selecting a cluster head, and forming a hybrid network structure simultaneously containing a honeycomb communication network and a short-distance communication network to realize efficient cooperative transmission of data. According to the user grouping method provided by the invention, the user group number and the cluster head can be dynamically updated according to the change of the system performance; and moreover, the user grouping method provided by the invention can effectively solve the problem in fusion of data transmission between different networks, the transmission fusion or coordinative transmission between a honeycomb communication system and a short-distance communication system is actually realized, and the need for sharing high-speed data service such as video stream and the like is met.
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Description

technical field

[0001] The invention relates to the technical field of mobile communication, in particular to a user dynamic grouping method used in a wireless heterogeneous network system. It is a user grouping method to solve the integration problem of the transmission of the cellular communication system and the short-distance communication system, and realize the sharing of high-speed data services such as video streams in the heterogeneous network. Background technique

[0002] How to achieve high-quality and high-speed data service sharing is an inevitable trend in the development of future information networks. At present, from the perspective of wired transmission, due to the relatively wide transmission bandwidth it can provide, data service sharing technology has begun to emerge. But from the perspective of wireless communication, due to the particularity of its wireless channel—the actual wireless channel is always narrowband due to propagation delay—the transmis...

Examples

Embodiment Construction

[0020] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] The present invention firstly provides a heterogeneous network structure suitable for transmission of high-speed data services such as video streams, referring to figure 1 The system model shown (here the users in the system are divided into three groups as an example for illustration). All users in the model can work in the cellular mobile communication network at first, while some users work in the short-distance communication network. Therefore, from the point of view of access, the system will present a two-layer communication network, that is, cellular and short-distance communication networks. In order to better improve communication quality, all users in the model are grouped to form different user groups, and one user in each user group is selected as the cluster head of the group. Respon...