2009•Unpublished venueRequires access

Virtual peak problem in OFDM synchronization and a simple preamble

Chuan‐Jian Zhong, Hai Wang

Abstract

In orthogonal frequency-division multiplexing (OFDM) systems, Cyclic Prefix (CP) is added for multi-path interference protection, which is a copy of the last part of the following OFDM symbol; however, this popular symbol structure may cause a virtual peak problem in some OFDM synchronization process. In order to solve the problem, we propose a new preamble structure to improve the synchronization performance.

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Key concepts: Preamble, Orthogonal frequency-division multiplexing, Cyclic prefix, Synchronization (alternating current), Computer science, Interference (communication), Symbol (formal), Simple (philosophy)