摘要
femtocell是一种室内微型基站,能以较低的功率为室内用户提供高速率的宽带服务,极大地解决了都市生活中室内信号覆盖困难的问题,是未来室内通信服务的主要手段之一。然而femtocell和其他通信设备一样面临着通信干扰管理的巨大挑战,首先在femtocell采用MIMO、OFDM、OFDMA等系统时,对其干扰抑制技术进行分析,然后介绍了femtocell的设备部署以及干扰类型,最后针对femtocell的部署特点以及适用的通信系统进行了比较和总结。
Femtocell is the micro base station for solving the problem of mobile communication coverage indoor, which can serve indoor users with high speed broadband at a relatively low power. It can solve the indoor communication coverage problem in city life. Femtocell will become the one of the main means of indoor communication service in the future. However femtocell is facing the great challenges of communication interference management as other communication equipment. The normal interference technologies with femtocell under MIMO, OFDM and OFDMA system were firstly introduced, and then the background of interference problem in femtocell was introduced. Finally, according to the characteristics of the femtocell deployment, its interference suppression methods were summarized and compared.
出处
《电信科学》
北大核心
2014年第5期131-137,150,共8页
Telecommunications Science
基金
国家自然科学基金资助项目(No.61201160
No.61071113
No.60902012)
江苏省科技计划资助项目(No.BK20131377)
国家教育部博士点基金资助项目(No.20100092110010)
江苏高校优势学科建设工程基金资助项目(No.yx002001)
江苏省高校优秀中青年教师和校长境外研修计划基金资助项目
关键词
家庭基站
干扰抑制
多输入多输出
正交频分多路复用
femtocell
interference suppression
multiple-input multiple-output
orthogonal frequency division multiplexing
