Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access

Kazuki Takeda, Tetsuya Yamamoto, Fumiyuki Adachi

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

Abstract

The uplink (mobile-to-base) bit error rate (BER) performance is significantly degraded due to the multi-access interference (MAI). Recently, we have proposed a new hybrid multi-access technique, called delay-time/code division multi-access (DT/CDMA). A different user is assigned a different cyclic time delay and/or spreading code. DT/CDMA can obtain the frequency diversity gain while suppressing the MAL. In the previous paper, time-domain spreading was considered. In this paper, we consider frequency-domain spreading and compare the achievable BER performances of DT/CDMA using time-domain spreading and frequency-domain spreading.

Original languageEnglish
Title of host publication2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Pages1529-1533
Number of pages5
DOIs
Publication statusPublished - 2008 Jul 28
Event2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore
Duration: 2008 May 112008 May 14

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
CountrySingapore
CityMarina Bay
Period08/5/1108/5/14

Keywords

  • Delay-time
  • Frequency-domain equalization
  • Multi-access

ASJC Scopus subject areas

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

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  • Cite this

    Takeda, K., Yamamoto, T., & Adachi, F. (2008). Time-domain spreading and frequency-domain spreading for delay-time/code division multi-access. In 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC (pp. 1529-1533). [4525913] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2008.357