| 摘要: |
| 为抑制小区间干扰提高系统性能，基于异构网络提出了一种分步基站分簇方法。该方法首先依据期望用户受到的除主服务基站之外的其余基站的信号干扰强度，确定待分簇基站集合；然后根据期望用户接收到待选集合中各个基站的信号强度，确定最终参与协作的基站集合。分步基站分簇方法通过缩小用户选择范围，同时综合考虑用户所在小区的信号强度和周围基站的干扰信号强度进行协作基站分簇。仿真结果表明:相对于现有功率最大法和阈值法，基于分步的基站分簇方法具有更高的用户端传输速率，更好地提升了系统性能。 |
| 关键词: 异构网络 协作多点传输 分簇 分步 传输速率 |
| DOI： |
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| 基金项目:国家自然科学基金青年科学基金资助项目（61302106）;河北省自然科学基金资助项目（F2014502029）；中央高校基本科研业务费专项资金资助项目（2016MS98）；基于无线MESH的高压输电线路监测数据通信传输系统研究与应用（CGY01XT0303140411） |
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| A fractional step clustering method for wireless heterogeneous networks |
| HAN Dongsheng,YUAN Hualu,DING Shasha,YU Ping |
| () |
| Abstract: |
| In order to suppress inter-cell interference and improve system performance,a new method of fractional step base station clustering is proposed for heterogeneous networks.This method firstly determines the collection for clustering base station according to the signal interference to the desired user from the base stations except the main service stations.Then,according to the signal intensity of each base station in the collection of the desired user received,it determines the final participate collection of the collaborative base station.By reducing the user's selection range,the fractional step clustering method considers the signal intensity and the interference signal intensity in cooperative base station clustering.Compared with the existing power maximum method and the threshold method,the fractional clustering method has a higher user transmission rate and better improves the system performance. |
| Key words: heterogeneous network coordinated multi-point transmission clustering fractional step method transmission rate |
