Zhefeng Li (University of Delaware), “Space-time/frequency Coded MIMO and Cooperative OFDM Systems” (2010)

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News and Resources for Members of the IEEE Signal Processing Society

February 2011

Zhefeng Li (University of Delaware), “Space-time/frequency Coded MIMO and Cooperative OFDM Systems” (2010)

Ph.D Theses

Zhefeng Li (University of Delaware), “Space-time/frequency Coded MIMO and Cooperative OFDM Systems”, Advisor: Prof. Xia, Xiang-Gen (2010)

Space-time/Frequency Coding (SFC) can achieve the spatial and multipath diversities for a MIMO-OFDM system by coding across multiple antennas and subcarriers. This thesis presents a family of space-time-frequency codes that achieve both full spatial and multipath diversities by using Orthogonal Space-Time Block Codes (OSTBC). In particular, the author developed a pre-coding algorithm for Peak-to-Average Power Ratio (PAPR) reduction and a clipping noise model based Maximum Likelihood (ML) decoding algorithm for Space-Time-Frequency Block Codes (STFBC) coded MIMO-OFDM systems. Except for MIMO-OFDM systems, in this work, cooperative OFDM system was also investigated. Taking the advantage of the Alamouti code structure, the author proposed a time domain interference cancellation algorithm.

For details, click here or contact the author.

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