Blind inter carrier interference compensation in MIMO SC-IFDMA system using firefly algorithm

A mathematical formulation of the detrimental effects of carrier frequency offset (CFO) and channel on uplink MIMO single carrier frequency division multiple access system with interleaved subcarrier mapping (SC-IFDMA) is carried out, and a linear filter is derived to counteract the performance degr...

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Bibliographic Details
Published in:International journal of electronics and communications 2016-06, Vol.70 (6), p.857-865
Main Authors: Padmanabhan Maya, Deepak, Chathan Kandiyil, Ali
Format: Article
Language:English
Subjects:
Block circulant matrices
Carrier frequency offset
Firefly algorithm
Inter carrier interference
MIMO systems
Single carrier FDMA
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Summary:A mathematical formulation of the detrimental effects of carrier frequency offset (CFO) and channel on uplink MIMO single carrier frequency division multiple access system with interleaved subcarrier mapping (SC-IFDMA) is carried out, and a linear filter is derived to counteract the performance degradation, under the assumption of perfect knowledge of CFO. Later on, the assumption on CFO parameter is removed, and a blind interference cancelation scheme based on firefly algorithm is proposed. The typical structure of the interference in SC-IFDMA is utilized in developing a low complexity implementation model for the proposals. The extensive simulation study is carried out using MATLAB and the significant features of the proposals were substantiated.
ISSN:1434-8411
1618-0399
DOI:10.1016/j.aeue.2016.03.015