Phase rotation sequence selection method for IFDMA with DDCE

Kazunori Yamamoto, Koichi Adachi, Tomoaki Ohtsuki

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

1 Citation (Scopus)

Abstract

Single-carrier frequency-division multiple-access (SC-FDMA) with frequency domain equalization (FDE) can provide good performance even in a frequency selective fading channel. In this paper, we focus on a special kind of SC-FDMA, i.e., interleaved frequency-division multiple-access (IFDMA) because of its peak-to-average power ratio (PAPR) property and frequency diversity gain. FDE requires accurate channel estimation. In the case of fast time varying fading channel, decision directed channel estimation (DDCE) is effective. However, in IFDMA, amplitude of each subcarrier may fluctuate depending on the combination of data symbols, then estimation accuracy may degrade. That can be avoided by multiplying information data sequence by random phase sequence. The performance depends on the selection of the sequence. In this paper, selection criterion suitable for IFDMA with DDCE is proposed. The effect of the proposed method is evaluated by computer simulation. The results will show the proposed method can lower the error floor of the system.

Original languageEnglish
Title of host publication2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Proceedings
DOIs
Publication statusPublished - 2011 Aug 29
Event2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Budapest, Hungary
Duration: 2011 May 152011 May 18

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring
CountryHungary
CityBudapest
Period11/5/1511/5/18

ASJC Scopus subject areas

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

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  • Cite this

    Yamamoto, K., Adachi, K., & Ohtsuki, T. (2011). Phase rotation sequence selection method for IFDMA with DDCE. In 2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Proceedings [5956263] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2011.5956263