Uplink Interference Scenarios in Two-Tier Networks

被引：0
|
作者：
Shi, Zhenning [1 ,3 ]
Reed, Mark C. [2 ]
Zhao, Ming [2 ]
Wang, He [2 ]
机构：
[1] Alcatel Lucent Shanghai Bell, Shanghai, Peoples R China
[2] Canberra Res Lab, NICTA, Canberra, ACT, Australia
[3] Australian Natl Univ, Canberra, ACT 0200, Australia
来源：
2010 CONFERENCE RECORD OF THE FORTY FOURTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS (ASILOMAR) | 2010年
基金：
澳大利亚研究理事会;
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a two-tier UMTS network is considered where a large number of randomly deployed Wideband Code Division Multiple Access (WCDMA) femtocells are laid under macrocells where the spectrum is shared. The co-channel interference between the cells may be a potential limiting factor for the system. We study the uplink of this hybrid network, and identify the critical scenarios that give rise to substantial interference. The mechanism for generating the interference is analyzed and guidelines for interference mitigation are provided. The impacts of the cross-tier interference, especially caused by increased numbers of users and higher data rates is evaluated in the multi-cell simulation environment in terms of the noise rise at the base stations, the cell throughput and the user transmit power consumption.
引用
收藏
页码：471 / 476
页数：6
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