Single carrier frequency domain equalization with noise prediction for broadband wireless systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Citations (Scopus)

Abstract

Recent research has shown that single carrier frequency domain equalization (SC-FDE) is an attractive technology for broadband wireless communications because it does not have the problems of OFDM systems such as large peak-to-average ratio and the sensitivity to carrier frequency offsets. The FD-DFE structure, which combines a frequency domain feedforward equalizer and a time domain feedback filter, has been proposed to bring better performance than the linear FDE scheme for severely distorted channels. However, this structure cannot be applied directly to coded systems because of the decision delays associated with these systems. In this paper, we propose a novel structure, which consists of a linear frequency domain equalizer and a time domain noise predictor. By using a simple block interleaver/deinterleaver pair to rearrange the order of the received signals prior to decoding, delayed reliable decisions can be used for feedback By doing so, significant performance improvement over the conventional FD-LE and the FD-DFE schemes can be achieved in the proposed FDE-NP scheme. It is also demonstrated that the performance complexity tradeoff of the proposed scheme can be obtained by only changing the order of the noise predictor. This is in contrast to the conventional FD-DFE scheme where both the FDE and the time domain feedback filter must be modified simultaneously.

Original languageEnglish
Title of host publicationGLOBECOM'04 - IEEE Global Telecommunications Conference
Pages3098-3102
Number of pages5
Volume5
Publication statusPublished - 2004
Externally publishedYes
EventGLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
Duration: 29 Nov 20043 Dec 2004

Other

OtherGLOBECOM'04 - IEEE Global Telecommunications Conference
CountryUnited States
CityDallas, TX
Period29/11/043/12/04

Fingerprint

Decision feedback equalizers
Equalizers
Feedback
Orthogonal frequency division multiplexing
Decoding
Communication

Keywords

  • Decision Feedback Equalization
  • Frequency Domain Equalization
  • Noise Predictor

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Zhu, Y., & Letaief, K. (2004). Single carrier frequency domain equalization with noise prediction for broadband wireless systems. In GLOBECOM'04 - IEEE Global Telecommunications Conference (Vol. 5, pp. 3098-3102)

Single carrier frequency domain equalization with noise prediction for broadband wireless systems. / Zhu, Yu; Letaief, Khaled.

GLOBECOM'04 - IEEE Global Telecommunications Conference. Vol. 5 2004. p. 3098-3102.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhu, Y & Letaief, K 2004, Single carrier frequency domain equalization with noise prediction for broadband wireless systems. in GLOBECOM'04 - IEEE Global Telecommunications Conference. vol. 5, pp. 3098-3102, GLOBECOM'04 - IEEE Global Telecommunications Conference, Dallas, TX, United States, 29/11/04.
Zhu Y, Letaief K. Single carrier frequency domain equalization with noise prediction for broadband wireless systems. In GLOBECOM'04 - IEEE Global Telecommunications Conference. Vol. 5. 2004. p. 3098-3102
Zhu, Yu ; Letaief, Khaled. / Single carrier frequency domain equalization with noise prediction for broadband wireless systems. GLOBECOM'04 - IEEE Global Telecommunications Conference. Vol. 5 2004. pp. 3098-3102
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