Skip to main content

Advertisement

  • Research Article
  • Open Access

Cyclostationarity-Inducing Transmission Methods for Recognition among OFDM-Based Systems

  • 1Email author,
  • 1,
  • 1,
  • 1 and
  • 1
EURASIP Journal on Wireless Communications and Networking20082008:586172

https://doi.org/10.1155/2008/586172

  • Received: 29 June 2007
  • Accepted: 18 March 2008
  • Published:

Abstract

This paper proposes two cyclostationarity-inducing transmission methods that enable the receiver to distinguish among different systems that use a common orthogonal frequency division multiplexing- (OFDM-) based air interface. Specifically, the OFDM signal is configured before transmission such that its cyclic autocorrelation function (CAF) has peaks at certain preselected cycle frequencies. The first proposed method inserts a specific preamble where only a selected subset of subcarriers is used for transmission. The second proposed method dedicates a few subcarriers in the OFDM frame to transmit specific signals that are designed so that the whole frame exhibits cyclostationarity at preselected cycle frequencies. The detection probabilities for the proposed cyclostationarity-inducing transmission methods are evaluated based on computer simulation when optimum and suboptimum detectors are used at the receiver.

Keywords

  • Information System
  • Computer Simulation
  • Autocorrelation
  • System Application
  • Specific Signal

Publisher note

To access the full article, please see PDF

Authors’ Affiliations

(1)
Research Laboratories, NTT DoCoMo, Inc., 3–5 Hikari-no-oka, Yokosuka Kanagawa, 239-8536, Japan

Copyright

© Koji Maeda et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Advertisement