DocumentCode :
3008126
Title :
A performance study of Fractional Frequency Reuse in OFDMA networks
Author :
Bilios, D. ; Bouras, Christos ; Kokkinos, Vasileios ; Papazois, Andreas ; Tseliou, Georgia
Author_Institution :
Comput. Eng. & Inf. Dept., Univ. of Patras, Patras, Greece
fYear :
2012
fDate :
19-21 Sept. 2012
Firstpage :
38
Lastpage :
43
Abstract :
Long Term Evolution (LTE) technology is considered as the most possible candidate for next generation mobile communications. LTE networks offer high capacity and are specified and designed to accommodate small, high performance, power-efficient end-user devices. One limiting factor that influences LTE performance is the interference from neighbor cells, the so called Inter-Cell Interference (ICI). Fractional Frequency Reuse (FFR) has been proposed as a technique to overcome this problem, since it can efficiently utilize the available frequency spectrum. This paper analyzes the FFR scheme and proposes a dynamic FFR mechanism that selects the optimal frequency allocation based on the cell total throughput and user satisfaction. In detail, the mechanism divides the cell into two regions (inner and outer) and selects the optimal size as well as the optimal frequency allocation between these regions with main target to maximize the overall throughput and user satisfaction. The mechanism is evaluated through several simulation scenarios that incorporate users´ mobility.
Keywords :
Long Term Evolution; OFDM modulation; frequency allocation; frequency division multiple access; next generation networks; radiofrequency interference; FFR scheme; ICI; LTE network technology; Long Term Evolution technology; OFDMA networks; cell total throughput; dynamic FFR mechanism; fractional frequency reuse; frequency spectrum; intercell interference; neighbor cells; next generation mobile communications; optimal frequency allocation; power-efficient end-user devices; user satisfaction; Bandwidth; Interference; Mathematical model; OFDM; Radio spectrum management; Throughput; Topology; fractional frequency reuse; optimization; orthogonal frequency division multiple access;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless and Mobile Networking Conference (WMNC), 2012 5th Joint IFIP
Conference_Location :
Bratislava
Print_ISBN :
978-1-4673-2993-4
Type :
conf
DOI :
10.1109/WMNC.2012.6416137
Filename :
6416137
Link To Document :
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