2003•Telecommunication EngineeringRequires access

Appliation of Cyclic Prefix in OFDM Systems

Hailin Zhang

Abstract

In this paper, the applications of cyclic prefix in the fields of weakening ISI and ICI and the realization of time-frequency synchronization in OFDM systems are discussed in detail. When the cyclic prefix is inserted into OFDM symbols, the ICI and ISI can be decreased, and the redundancy introduced by cyclic prefix can provide sufficient information for simultaneous estimation of time-frequency offset, thus making the system synchronization simple in structure and efficient in performance.

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Available abstract

Key concepts: Cyclic prefix, Orthogonal frequency-division multiplexing, Prefix, Synchronization (alternating current), Computer science, Redundancy (engineering), Frequency offset, Offset (computer science)