DocumentCode :
2967099
Title :
Interference Avoidance and Adaptive Fraction Frequency Reuse in a Hierarchical Cell Structure
Author :
An, Ruihong ; Zhang, Xin ; Cao, Gen ; Zheng, Ruiming ; Sang, Lin
Author_Institution :
Wireless Theor. & Technol. Lab. (WT&T), Beijing Univ. of Posts & Telecommun., Beijing, China
fYear :
2010
fDate :
18-21 April 2010
Firstpage :
1
Lastpage :
5
Abstract :
Due to high data rate requirement for indoor radio coverage, femtocells have been proposed as a potential good solution in recent years. Under this configuration, a main design objective is to coordinate the mutual interference between macro and femto cells. In this paper, the flexible assignment of downlink resource in a hierarchical cell structure is investigated. A dynamic frequency assignment technique called adaptive fraction frequency reuse (AFFR) is proposed, by avoidance of severe interference between macro and femto cells. A network model and system level simulations for LTE macrocell/femtocell scenarios are presented. The results show that, AFFR has better average and cell- edge performance compared with co-channel frequency allocation (co-channel FA) and orthogonal frequency allocation (OFA) for both macro and femto cells.
Keywords :
Base stations; Communications Society; Control systems; Downlink; Femtocells; Frequency; Indoor radio communication; Interchannel interference; Macrocell networks; Radio spectrum management;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2010 IEEE
Conference_Location :
Sydney, Australia
ISSN :
1525-3511
Print_ISBN :
978-1-4244-6396-1
Type :
conf
DOI :
10.1109/WCNC.2010.5506164
Filename :
5506164
Link To Document :
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