Interference suppression for the LTE uplink

Interference cancellation is expected to have significant importance for next-generation wireless communication systems due to various co-channel deployment scenarios and denser frequency reuse. In this study, an interference cancellation receiver that exploits the unique characteristics of single-c...

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Bibliographic Details
Published inPhysical communication Vol. 9; pp. 23 - 44
Main Authors Çelebi, Mehmet Bahadır, Güvenç, İsmail, Arslan, Hüseyin, Qaraqe, Khalid A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2013
Subjects
Inter-symbol interference
Iterative interference cancellation
Likelihood test
LTE uplink
Narrowband dominant interference
Raised cosine windowing/blanking
SC-FDE/SC-FDMA
Iterative interference cancellation
Narrowband dominant interference
Likelihood test
LTE uplink
Raised cosine windowing/blanking
SC-FDE/SC-FDMA
Inter-symbol interference
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Summary:Interference cancellation is expected to have significant importance for next-generation wireless communication systems due to various co-channel deployment scenarios and denser frequency reuse. In this study, an interference cancellation receiver that exploits the unique characteristics of single-carrier frequency-division multiple access based systems is proposed. The proposed receiver suppresses the co-channel dominant interference by blanking frequency-domain samples where the desired and interfering signals overlap. In order to improve the performance, demodulation and regeneration stages can be introduced and repeated multiple times. Further enhancement is possible by initially accommodating a group of reliable symbols before the iterations. The simulation results indicate that proposed methods work particularly well for low overlap ratios compared to interference coordination and no cancellation schemes.
ISSN:1874-4907
1876-3219
DOI:10.1016/j.phycom.2013.05.004