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Energy-efficiency-fairness-based resource distribution and power control method in heterogeneous network

A resource allocation and heterogeneous network technology, applied in power management, wireless communication, electrical components, etc., can solve the problems of unbalanced network energy efficiency, affecting the service quality of cell users, unable to effectively describe the energy efficiency of a single cell, etc. Minimum energy efficiency and fairness effects

Active Publication Date: 2016-08-31
上海瀚芯实业发展合伙企业(有限合伙)
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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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  • Energy-efficiency-fairness-based resource distribution and power control method in heterogeneous network
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  • Energy-efficiency-fairness-based resource distribution and power control method in heterogeneous network

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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 an energy-efficiency-fairness-based resource distribution and power control method in an OFDMA two-layer heterogeneous network system. On the condition of given cross-layer interference constraint limiting, the invention aims at solving an energy-efficiency-fairness-based resource block distribution and power control strategy in a femtocell network system. In order to solve a non-convex multi-target fractional optimization problem integrated with a shaping variable, conversion is carried out based on a fractional planning theory and solving is carried out by using a generalized Dinkelbach's algorithm (GDA). Especially, a distributed algorithm for limited information interaction between femtocells is designed and an optimal resource distribution and power control strategy is obtained finally to solve sub problems in the GDA. After simulated verification by a computer, the method has the beneficial effects that the minimum efficiency and fairness of the network system can be improved effectively.

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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IPC IPC(8): H04W52/40H04W72/04
CPCH04W52/40H04W72/0473H04W72/53
Inventor 衡伟张国栋
Owner 上海瀚芯实业发展合伙企业(有限合伙)
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