Interference management with adaptive fractional frequency reuse for LTE-A femtocells networks

doi:10.1016/S1005-8885(13)60033-3

中国邮电高校学报(英文)

Interference management with adaptive fractional frequency reuse for LTE-A femtocells networks

张纬栋¹,王莹²,徐明月¹,张平¹

1. 北京邮电大学无线新技术研究所
2. 北京邮电大学电信工程学院

收稿日期:2012-08-02 修回日期:2012-12-20 出版日期:2013-04-30 发布日期:2013-04-26
通讯作者: 张纬栋 E-mail:same.zwd@gmail.com
基金资助:
This work was supported by the National Natural Science Foundation of China (61121001), Program for New Century Excellent Talents in University (NCET-10-0242).

Interference management with adaptive fractional frequency reuse for LTE-A femtocells networks

Received:2012-08-02 Revised:2012-12-20 Online:2013-04-30 Published:2013-04-26
Contact: Wei-Dong ZHANG E-mail:same.zwd@gmail.com
Supported by:
This work was supported by the National Natural Science Foundation of China (61121001), Program for New Century Excellent Talents in University (NCET-10-0242).

摘要/Abstract

摘要：

This paper presents a novel interference management strategy, to adaptively choose the best fractional frequency reuse (FFR) scheme for macro and femto networks. The strategy aims to maximize the system throughput taking into account a number of system constraints. Here, the system constrains consist of the outage constraints of two-tier users and macrocell spectral efficiency requirement. The detailed procedures of our proposed strategy are: 1) A reference signal received power (RSRP) based selection algorithm is presented to adaptively select the optional FFR schemes satisfying the outage constraints. 2) Considering the macrocell spectral efficiency, the optimal FFR scheme is selected from the optional FFR schemes at MeNB side, to achieve the maximum system throughput in two-tier femtocell networks. We study the efficacy of the proposed strategy using an long term evolution advanced (LTE-A) system level simulator. Simulation results show that our proposed interference management strategy can select the best FFR scheme to maximize the system throughput, and the FFR schemes derived by using RSRP-based selection algorithm can be the effective solutions to deploy femtocells in macrocells.

关键词:

femtocell, FFR, outage probability, spectral efficiency, RSRP

Abstract:

Key words:

femtocell, FFR, outage probability, spectral efficiency, RSRP

参考文献

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Interference management with adaptive fractional frequency reuse for LTE-A femtocells networks

Interference management with adaptive fractional frequency reuse for LTE-A femtocells networks

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