Abstract
Carrier frequency offset (CFO) is a major issue with MIMO Orthogonal Frequency Division Multiplexing and it causes Intercarrier Interference (ICI) and also Inter symbol Interference (ISI). Due to ISI and ICI, we get a low Bit Error Rate (BER) and high Peak to Average Power Ratio (PAPR) at the OFDM receiver side and corrupted data. It is highly required to remove CFO during communication or receiving OFDM symbols. Discrete Cosine Transform Selective Level Mapping (DCT-SLM) is used in this work to reduce CFO. Full Orthogonal communication can prevent ICI or ISI up to a certain level caused by CFO but, it is also required to mitigate ICI at the OFDM receiver side. This work proposed a Modified Bartlett-Hanning (MBH) windowing method at the OFDM receiver side for reduction of PAPR and BER caused by ICI and CFO.
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