Resource allocation method in heterogeneous network
A heterogeneous network and resource allocation technology, applied in the field of wireless communication, can solve the problems of difficult D2D user application, difficult to find a grouping scheme, D2D users cannot allocate sub-channels, etc., so as to suppress cross-layer interference and same-layer interference, and improve energy. The effect of efficiency
Active Publication Date: 2017-11-24
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology
[0005] After research, it is found that in the existing technology, the computational complexity of the centralized interference management scheme will increase sharply with the increase of the number of D2D users, making it difficult to apply this method in the scenario where D2D users are densely deployed; at the same time, group-based The orthogonal grouping method in the group in the interference management scheme is to start grouping from each D2D user itself, and it is difficult to find a better grouping scheme globally. At the same time, the number of D2D users in each group obtained by this grouping scheme is very unbalanced. Some D2D users cannot be allocated enough sub-channels, making it difficult to guarantee the quality of service (QoS) requirements of D2D users
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[0027] In order to express the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation cases.
[0028] figure 1Shown is a flow chart of a preferred embodiment of the method for resource allocation in a heterogeneous network composed of cellular users and D2D users according to the present invention. The method includes the following steps:
[0029] Step 101: clustering the D2D users by using the ant colony genetic algorithm;
[0030] Step 102: using an auction algorithm to allocate channels for each D2D cluster;
[0031] Step 103: Using a non-cooperative game theory algorithm to perform power allocation for cellular users and D2D users sharing the same channel.
[0032] figure 2 It is a flowchart of an embodiment of D2D user clustering in a heterogeneous network composed of cellular users and D2D users according ...
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The invention discloses a resource allocation method based on clustering in a heterogeneous network. The method comprises the steps that an ant colony genetic algorithm is used to cluster D2D users; an auction algorithm is used to allocate channels to each D2D cluster; a non-cooperative game theory algorithm is used to carry out power distribution for cellular users and D2D users, wherein cellular users and D2D users share the same channel. According to the invention, the service quality need of users is satisfied; cross-layer interference and same-layer interference between cellular users and D2D users can be effectively suppressed; and the energy efficiency of users is effectively improved.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a resource allocation method based on clustering in a heterogeneous network composed of cellular users and D2D users. Background technique [0002] Green network is a new research topic proposed under the current situation of international energy shortage and continuous increase of carbon dioxide emissions. As early as the 21st century, research on green wireless communication has been extensively carried out, mainly including energy consumption analysis of mobile networks, base station coverage management, green network energy-saving evaluation, energy-saving communication network design, and power adaptive control. However, the research on this aspect is mainly aimed at saving the energy consumption of base stations and core network equipment, and cannot reduce the energy consumption of network infrastructure while improving the efficiency of network tran...
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Login to View More IPC IPC(8): H04W72/04H04W72/08
CPCH04W72/0473H04W72/541Y02D30/70
Inventor 张海波黄旭李方伟刘开健
Owner CHONGQING UNIV OF POSTS & TELECOMM