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Overview:

This paper details a new Orthogonal-Frequency-Division-Multiplexing (OFDM) modulator based on the use of a PseudoRandom Postfix (PRP)-OFDM and discusses low-complexity equalization and channel estimation/tracking architectures. The main property of this new modulation scheme is the ability to estimate and track the channel variations semi-blindly using order-one statistics of the received signal. Compared with known Cyclic Prefix OFDM (CP-OFDM) Pilot-Symbol-Assisted Modulation (PSAM) schemes, the pilot overhead is avoided.

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Format:PDFSize:640 KB
Date:Mar 2006
Pages:13

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