Honeycomb heterogeneous network user association and resource allocation method and device

A resource allocation and heterogeneous network technology, applied in power management, wireless communication, electrical components, etc., can solve problems such as less consideration of joint user association and resource allocation, and difficulty in joint optimization of network resources and overall network performance optimization. , to minimize the effect of electromagnetic radiation

Active Publication Date: 2016-05-11
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] In the existing research, most of the optimal user association strategies are determined based on factors such as user QoS requirements and network load balancing, and less consideration is given to joint user association issues and resource allocation issues, making it difficult to achieve joint optimization of network resources and overall network performance optimization.

Method used

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  • Honeycomb heterogeneous network user association and resource allocation method and device
  • Honeycomb heterogeneous network user association and resource allocation method and device
  • Honeycomb heterogeneous network user association and resource allocation method and device

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Embodiment Construction

[0029] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] figure 1 It is a schematic diagram of a cellular heterogeneous network scenario. Multiple low-power nodes, such as Picocell and Femtocell, are deployed within the coverage area of ​​a macro cell. Users can choose different networks to associate with within the coverage area of ​​a macro cell, and perform data transfer according to their own transmission rate requirements. power distribution.

[0031] image 3 It is a schematic flow diagram of the cellular heterogeneous network user association and resource allocation method proposed by the present invention, as shown in the figure: the specific steps of the method are:

[0032] 301: Define user-related variables and power variables

[0033] Define the user-associated variable α ij ∈{0,1}, i=1,2,...,M,j=1,2,...,N, where M is the number of users, N is the number of networks in the sy...

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Abstract

The invention relates to a honeycomb heterogeneous network user association and resource allocation method and device belonging to the mobile communication technical field. According to the method and the device, user service demand features and user received electromagnetic radiation are taken into overall consideration; an optimum transmitting power is determined for a user under the condition of satisfying the QoS demand of the user; an optimum network association strategy is determined for the user by taking the minimum user electromagnetic radiation as a criterion; and further, the united user electromagnetic radiation is minimized.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a method and device for user association and resource allocation in a cellular heterogeneous network. Background technique [0002] With the rapid development of wireless communication technology, all kinds of smart terminals are showing explosive growth trend, and rich and diverse data services are also emerging. The high-speed service needs of users pose a severe challenge to traditional cellular networks. Cellular heterogeneous network technology introduces low-power nodes, such as relay sites, picocell sites, and home base stations, within the coverage of traditional macrocells, to strengthen the coverage of specific areas in a targeted manner to form multi-layer network coverage, which can effectively realize User QoS guarantee improves system resource utilization. [0003] In the cellular heterogeneous network scenario, users located in overlapping coverage area...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24H04W52/26H04W72/04H04W72/08
CPCH04W52/244H04W52/265H04W52/267H04W72/0473H04W72/53H04W72/543
Inventor 柴蓉黄峥陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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