Vierailuluento: Memoryless LTI Transceivers with Reduced Redundancy
Instructor: Dr. Paulo S.R. Diniz (Universidade Federal do Rio de Janeiro)
Description:
This presentation addresses fundamental, as well as some specic results related to block transmission. The standard designs of multicarrier and single-carrier transceivers employing frequency domain equalization require an amount of redundancy of at least the order of the channel. This redundancy eliminates the inherent inter-block interference (IBI), and allows the exploitation of the resulting channel matrix to design computationally ecient zero-forcing (ZF) and minimum mean squared error (MMSE) equalizers. Although reliability and simplicity are rather important in practical applications, the amount of redundancy should be reduced to potentially increase the spectral eciency. In the context of xed and memoryless TMUXes, it is possible to show that the minimum redundancy required to eliminate IBI and still allow the design of zero-forcing (ZF) solutions is only half the amount of redundancy used by standard OFDM and SC-FD systems.
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