Stackelberg game-based cross-layer resource allocation method of heterogeneous network

A heterogeneous network and resource allocation technology, applied in the field of wireless communication, to achieve good application prospects, improve system utility, and facilitate distributed implementation.

Active Publication Date: 2015-07-22
XI AN JIAOTONG UNIV
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Problems solved by technology

[0003] At present, there are few studies on the application of cross-layer design ideas to the establishment of EERA models of heterogeneous networks. However, due to the unique advantages of cross-layer design, EERA based on cross-layer design in heterogeneous networks is a trend to be studied.

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  • Stackelberg game-based cross-layer resource allocation method of heterogeneous network
  • Stackelberg game-based cross-layer resource allocation method of heterogeneous network
  • Stackelberg game-based cross-layer resource allocation method of heterogeneous network

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with drawings and embodiments.

[0061] The non-cooperative game-based resource allocation and interference suppression method in the LTE system provided by the present invention comprises the following steps:

[0062] (1) A heterogeneous network with 1 Macrocell and N Small cells (SCs) is established, and the number of users in each SC is M and they share K subcarriers. Macrocell can estimate the channel gain from SC n to the scheduled macro cell user (MU) (k=1,...K; n=1,...N; m=1,...M), however Macrocell cannot estimate the channel gain from SC n to SCU m It can only collect the channel gain from SC n to SCU m Fixed probability density distribution f(h); for any SC n, the channel gain from SC n to SCU m can be estimated Instead of estimating the channel gain from SC n to the scheduled macro cell user (MU) It can only collect the channel gain from SC n to the scheduled macro cell user (MU) ...

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Abstract

A Stackelberg game-based cross-layer resource allocation method of a heterogeneous network includes: building the heterogeneous network before building a MAC (media access control) layer transmission control model and a physical layer model; according to an MAC layer and the physical layer model, building a JPMO (joint physical and MAC layer optimization) model; dividing the JPMO model into two sub-models by Stackelberg game; by means of backtracking, solving an energy-saving resource allocation model with a physical layer built at the SC (small cell) terminal, by Lagrangian dual decomposition, and solving an optimal access control model with a MAC layer built at the Macro terminal, by a gradient-based iterative algorithm. The method has the advantages that cross-layer design and multi-user multi-channel diversity gain are adopted, the heterogeneous network experiences fewer cross-layer disturbances at the premise of saving energy, system efficiency is effectively improved, joint disturbance management and resource allocation are achieved in the heterogeneous network, and simulation results show that system utility is effectively improved by the use of the method compared to those using no cross-layer design.

Description

technical field [0001] The invention belongs to the field of wireless communication, relates to a system-level network simulation of a wireless communication system, and in particular relates to a stackelberg game-based cross-layer resource allocation method in a heterogeneous network. Background technique [0002] The current development of battery technology cannot meet people's growing multimedia application needs. Energy efficiency is also an important link in the design of wireless communication systems. Energy-saving communication has become a current hot topic. In a heterogeneous network, Macrocell (Macro) and Small cell share the entire spectrum, which brings serious cross-layer interference and same-layer interference, which greatly reduces network efficiency. [0003] At present, there are few studies on the application of cross-layer design ideas to the establishment of EERA models of heterogeneous networks. However, due to the unique advantages of cross-layer des...

Claims

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Application Information

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IPC IPC(8): H04W72/08H04W74/08
CPCH04W74/0866H04W72/541Y02D30/70
Inventor 王霞王元双石军王鑫陈新桥
Owner XI AN JIAOTONG UNIV
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