Distributed channel selection principles for femtocells with two-tier interference

Chiao Lee*, Jane Hwa Huang, Li-Chun Wang

*Corresponding author for this work

研究成果: Conference contribution同行評審

30 引文 斯高帕斯(Scopus)

摘要

It goes without saying that the femtocells will be widely employed in the next generation wireless networks since the femtocells improve indoor capacity and coverage with low power and less cost. However, as the femtocells become popular, the femtocell users suffer from the complicated two-tier interference, including the macrocell-to-femtocell and femtocellto- femtocell interference. Therefore, the femtocells pose a difficult challenge on managing the interference in a autonomous and distributed manner. In this paper, we investigate how to distributedly select the sub-channels for the OFDMA-based femtocell systems to reduce interference and to improve indoor capacity under a link reliability requirement.We develop the channel-gain oriented and interference-avoidance oriented distributed channel selection schemes. Simulation results show that the interference from the macrocell and other femtocells significantly degrades femtocell link reliability and capacity. However, by properly adjusting the number of used sub-channels, the developed channel selection schemes can improve capacity and ensure the link reliability.

原文English
主出版物標題2010 IEEE 71st Vehicular Technology
DOIs
出版狀態Published - 30 七月 2010
事件2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring - Taipei, Taiwan
持續時間: 16 五月 201019 五月 2010

出版系列

名字IEEE Vehicular Technology Conference
ISSN(列印)1550-2252

Conference

Conference2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring
國家Taiwan
城市Taipei
期間16/05/1019/05/10

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