Heterogeneous wireless network access control and resource distribution joint method based on multiple services

A heterogeneous wireless network and resource allocation technology, applied in the field of wireless communication, can solve the problems of ignoring user service quality, different service types, and ignoring base station interference user service types.

Inactive Publication Date: 2014-05-07
XIDIAN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

However, most of the research scenarios of resource allocation technology only consider a single base station, which is not in line with today's real heterogeneous wireless network environment
For example, Nan Zhou et al. proposed a low-complexity adaptive cross-layer scheduling resource allocation algorithm in IEEE Transactions on wireless communication, 2010 "Low Complexity Cross-Layer Design with Packet Dependent Scheduling for Heterogeneous Traffic in Multiuser OFDM Systems". The user quality of service (QoS) requirements of different business types are considered, but the heterogeneity of this method is only reflected in the different business types, and cannot reflect the

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  • Heterogeneous wireless network access control and resource distribution joint method based on multiple services
  • Heterogeneous wireless network access control and resource distribution joint method based on multiple services
  • Heterogeneous wireless network access control and resource distribution joint method based on multiple services

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Embodiment Construction

[0057] The present invention discloses a multi-service-based heterogeneous wireless network access control and resource allocation joint method. The principles and technical solutions of the present invention are further described below in conjunction with the accompanying drawings:

[0058] refer to figure 2 , the implementation scenario of the present invention is a macro cell deployed with several home cells. The home cells are within the coverage of the macro cell, and the coverage areas between the home cells do not overlap. There are W base stations and N users in the whole system, and some The user is both within the coverage of the macro cell and within the coverage of the home cell. refer to image 3 It can be seen that users between non-overlapping home cells cannot directly select an access network between two home base stations. This method sets an indirect coordinator in the macro base station, which is used to update the user's access network selection based o...

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Abstract

The invention discloses a heterogeneous wireless network access control and resource distribution joint method based on multiple services, wherein the method includes: firstly, system throughput capacity and user fairness are taken into consideration comprehensively; a system optimization target function is designed for time-delay sensitive services and an optimization problem is resolved into two sub-problems of access control and resource distribution, wherein the resource distribution is completed by each base station; and then an indirect coordinator is arranged on a macro base station and according to the resource distribution result of each base station, access network selection of a user is adjusted. On the premise that the service quality of users of different service types is ensured, the heterogeneous wireless network access control and resource distribution joint method based on the multiple services is capable of solving a problem of load balance between the macro base station and household cells and between the household cells, improving the throughput capacity of the whole network and effectively reducing algorithm complexity; and the method is applicable to a downlink of a heterogeneous wireless network in which the macro base station and the household base stations coexist.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, is applied to the downlink of a heterogeneous wireless network environment where a macro cell and a home cell coexist, and relates to an access control technology and a resource allocation technology of an LTE heterogeneous wireless network, which can satisfy user quality of service (QoS ) demand, and can improve the throughput of the whole system. Background technique [0002] In order to meet the increasing data transmission requirements of users and increase the total capacity of the cell network, especially to improve the communication quality of users in hotspot cells, operators have added home cells within the coverage of macro cells. The home cell can spatially multiplex the frequency spectrum, so users in the overlapping area of ​​the macro cell and the home cell can choose the home base station to transmit data, which can enable the user to obtain better channel quality, g...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W36/22H04W72/04
Inventor 赵林靖赵佳冯仰善刘勤李钊侯蓉晖
Owner XIDIAN UNIV
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