A Resource Allocation and Power Control Method Based on Energy Efficiency Fairness in Heterogeneous Networks

A resource allocation and heterogeneous network technology, applied in power management, wireless communication, electrical components, etc., can solve problems such as unbalanced network energy efficiency, low energy efficiency, and affecting the service quality of community users, and achieve the goal of improving minimum energy efficiency and fairness Effect

Active Publication Date: 2019-05-31
白盒子(上海)微电子科技有限公司
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Problems solved by technology

Although this system index can better describe the overall energy efficiency of the network system, it cannot effectively describe the energy efficiency of a single cell. The energy efficiency of the entire network is unbalanced, affecting the service quality of users in some cells

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  • A Resource Allocation and Power Control Method Based on Energy Efficiency Fairness in Heterogeneous Networks
  • A Resource Allocation and Power Control Method Based on Energy Efficiency Fairness in Heterogeneous Networks
  • A Resource Allocation and Power Control Method Based on Energy Efficiency Fairness in Heterogeneous Networks

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Embodiment Construction

[0031] In order to introduce the technical content of the present invention in more detail, specific examples are given and described as follows with accompanying drawings.

[0032] figure 1 The system simulation model of the present invention is established, 3 femtocell networks are densely deployed at the cell edge of the macro cell, and 3 femtocell users are randomly deployed in each femtocell, and some macrocell users are randomly distributed around the femtocell and selected The user with the shortest average distance to the femtocell base station is the user closest to the femtocell network, and it is stipulated that the cross-layer interference of the femtocell network to the macrocell user cannot be higher than a predetermined value. In addition, the coverage radius of the macro cell is 500m, the coverage radius of the femtocell is 20m, the number of resource blocks available in the system is 32, the maximum transmission power of the macro cell base station is 46dBM, a...

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Abstract

The invention discloses a resource allocation and power control method based on energy efficiency fairness in an OFDMA two-layer heterogeneous network system. Under the condition of given cross-layer interference constraints, the invention is dedicated to solving resource block allocation and power control strategies for energy efficiency and fairness in femtocellular network systems. For such a non-convex multi-objective fractional optimization problem mixed with integer variables, the invention converts it according to the fractional programming theory and uses the generalized Dinkelbach algorithm (Generalized Dinkelbach's Algorithm, GDA) to solve it. In particular, for the sub-problems in the GDA algorithm, the invention designs a distributed algorithm with limited information interaction between femtocells and finally obtains an optimal resource allocation and power control strategy. Through computer simulation verification, the inventive method can effectively improve the minimum energy efficiency and fairness of the network system.

Description

technical field [0001] The invention relates to the technical field of wireless heterogeneous network communication, relates to a resource block allocation and power control method for network energy efficiency fairness, and designs a distributed policy update algorithm with limited collaboration between femtocells. Background technique [0002] The emergence of 5G mobile wireless communication system is to overcome the fundamental problems of current communication systems: higher data transmission rate, wider coverage, lower energy loss and better end-to-end performance. In order to effectively face these challenges, academia and industry have proposed that the future 5G communication system adopt a heterogeneous network architecture system. The architecture system includes macro cell network, densely deployed micro cell, terminal direct connection, cooperative relay network, etc. With the rapid growth of current network traffic and the rapid expansion of the network archi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/40H04W72/04
CPCH04W52/40H04W72/0473H04W72/53
Inventor 衡伟张国栋
Owner 白盒子(上海)微电子科技有限公司
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