面向未来无线通信系统的小蜂窝网络综述

A Survey of Small Cell Networks for Future Wireless Communication Systems

为了满足人们日益增长的数据流量需求,未来无线通信系统将向更小的小区部署迁移。小蜂窝网络是下一代无线通信系统的关键技术,也是适应未来更加复杂通信环境的有效途径。首先介绍了小蜂窝网络的基本概念,论述了其主要的技术特点和独特的应用优势,分析了其在未来无线通信系统中与其他各种技术可能的融合场景并讨论了对应的特点和存在的难题;然后概述了小蜂窝网络技术发展过程中所面临的主要挑战,分析了目前主要的研究成果和解决方案;最后,结合下一代无线通信的关键技术,如大规模多输入多输出通信、毫米波通信、D2D(Device-to-Device)通信和认知无线电技术等,总结了小蜂窝网络的应用现状并分析了其市场和发展前景。

In order to meet the increasing demand for data traffic,wireless communication systems will be migrated to smaller cells in the future.Small cell network is a key technology of the next-generation wireless communication systems and an effective way to adapt to the more complex communication environments in the future.This paper introduces the basic concepts of small cell networks,discusses its main technical characteristics and unique application advantages,analyzes the possible integration scenarios with other various technologies in future wireless communication systems,and discusses corresponding features and existing technologies challenge.Also,it outlines the possible technical challenges which will meet in the practical communication scenes,and analyzes the current main research results and solutions.Finally,based on the major wireless communication technologies,such as large-scale multiple-input multiple-output(MIMO)communication,millimeter-wave communication,device-to-device(D2D)communication,and cognitive radio technology,the application scenarios and the market and development prospects of small cell networks are summarized.