DocumentCode :
2211783
Title :
Interference alignment in frequency — A measurement based performance analysis
Author :
Brandt, Rasmus ; Asplund, Henrik ; Bengtsson, Mats
Author_Institution :
ACCESS Linnaeus Center, KTH (R. Inst of Technol.), Stockholm, Sweden
fYear :
2012
fDate :
11-13 April 2012
Firstpage :
227
Lastpage :
230
Abstract :
The idea of interference alignment (IA) has shown great promise in many theoretical studies. Yet it is not clear under what operating conditions it will perform better than traditional multiple access schemes under realistic network conditions. Here, we use measured channels to evaluate a number of different IA schemes and related methods, focusing on wideband single-antenna transmission, using frequency extensions for the IA. The radio channels were measured jointly from three base station sites in an urban macrocell scenario, over a 20 MHz bandwidth, allowing to emulate a scenario with 3 interfering cells (i.e. 3 interfering transmit/receive pairs). The numerical results show clear gains using IA related methods, compared to frequency planning with frequency reuse 3 and to uncoordinated transmission, even at low to moderate SNR.
Keywords :
channel estimation; frequency measurement; interference (signal); multi-access systems; frequency extensions; interference alignment; measurement based performance analysis; multiple access schemes; operating conditions; uncoordinated transmission; wideband single-antenna transmission; Frequency measurement; Interference; MIMO; Planning; Receivers; Signal to noise ratio; channel measurements; frequency extension; interference alignment; performance analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems, Signals and Image Processing (IWSSIP), 2012 19th International Conference on
Conference_Location :
Vienna
ISSN :
2157-8672
Print_ISBN :
978-1-4577-2191-5
Type :
conf
Filename :
6208113
Link To Document :
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