Zadoff-chu sequence based signature identification for ofdm

Kilbom Lee, Joonsuk Kim, Jaehoon Jung, Inkyu Lee

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A signature identification algorithm is a method to obtain the cell identification information for wireless cellular systems or determine the intended user for wireless local area network. In this paper, we propose a simple and efficient signature identification algorithm on the basis of Zadoff-Chu sequence in orthogonal frequency division multiplexing systems. In addition, we prove that the proposed algorithm achieves a maximum likelihood solution if the receiver knows the channel length. Also, the exact probabilities of signature identification failures of the proposed algorithm are provided for different power delay profiles. To demonstrate efficacy of the proposed algorithm in fading channels, we derive the failure probability at high signal-to-noise ratio (SNR). Through a high SNR expression, it is shown that the proposed algorithm fully exploits frequency selective fadings. Especially, we reveal that the slope of the failure probability curves at high SNR is determined by the channel length regardless of power delay profiles. Simulation results show that the proposed algorithm outperforms conventional signature algorithms in frequency selective fading channels. Also, we confirm that our analysis matches well with the empirical results of the proposed signature identification algorithm.

Original languageEnglish
Article number6612906
Pages (from-to)4932-4942
Number of pages11
JournalIEEE Transactions on Wireless Communications
Volume12
Issue number10
DOIs
Publication statusPublished - 2013 Oct 1

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Signature
Signal to noise ratio
Frequency selective fading
Failure Probability
Fading Channels
Fading channels
Wireless Local Area Network (WLAN)
Cellular Systems
Fading
Wireless local area networks (WLAN)
Orthogonal Frequency Division multiplexing (OFDM)
Orthogonal frequency division multiplexing
Maximum likelihood
Maximum Likelihood
Efficacy
Slope
Receiver
Curve
Cell
Demonstrate

Keywords

  • cell identification
  • Chu sequence
  • OFDM

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

Cite this

Zadoff-chu sequence based signature identification for ofdm. / Lee, Kilbom; Kim, Joonsuk; Jung, Jaehoon; Lee, Inkyu.

In: IEEE Transactions on Wireless Communications, Vol. 12, No. 10, 6612906, 01.10.2013, p. 4932-4942.

Research output: Contribution to journalArticle

Lee, Kilbom ; Kim, Joonsuk ; Jung, Jaehoon ; Lee, Inkyu. / Zadoff-chu sequence based signature identification for ofdm. In: IEEE Transactions on Wireless Communications. 2013 ; Vol. 12, No. 10. pp. 4932-4942.
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