Channel estimation with selective superimposed pilot sequences under fast fading environments

Fumiaki Tsuzuki, Tomoaki Ohtsuki

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

10 Citations (Scopus)

Abstract

Recently, the superimposed pilot channel estimation has been proposed for wireless communications, where the pilot symbol sequence is superimposed on a data symbol sequence and transmitted together, and thus it has a high spectral efficiency. In this scheme, the receiver correlates the received signal sequence with the pilot symbol sequence, and obtains the channel estimate. However, the correlation between the pilot symbol sequence and the data symbol sequence deteriorates the channel estimation accuracy. The use of the longer frame leads to the lower correlation, but also to the lower channel tracking capability. In this paper, we propose a selective superimposed pilot channel estimation scheme with selecting a pilot sequence that has a low correlation with a data symbol sequence from the set of the pilot sequences assigned to the transmitter. We show that the proposed channel estimation is superior to the conventional superimposed channel estimation (pilot = 1), and the proposed channel estimation can achieve the good channel estimation even under fast fading environments.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Pages62-66
Number of pages5
Volume60
Edition1
Publication statusPublished - 2004
Externally publishedYes
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: 2004 Sep 262004 Sep 29

Other

Other2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security
CountryUnited States
CityLos Angeles, CA
Period04/9/2604/9/29

Fingerprint

Fading (radio)
Channel estimation
Transmitters
Communication

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Tsuzuki, F., & Ohtsuki, T. (2004). Channel estimation with selective superimposed pilot sequences under fast fading environments. In IEEE Vehicular Technology Conference (1 ed., Vol. 60, pp. 62-66)

Channel estimation with selective superimposed pilot sequences under fast fading environments. / Tsuzuki, Fumiaki; Ohtsuki, Tomoaki.

IEEE Vehicular Technology Conference. Vol. 60 1. ed. 2004. p. 62-66.

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

Tsuzuki, F & Ohtsuki, T 2004, Channel estimation with selective superimposed pilot sequences under fast fading environments. in IEEE Vehicular Technology Conference. 1 edn, vol. 60, pp. 62-66, 2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security, Los Angeles, CA, United States, 04/9/26.
Tsuzuki F, Ohtsuki T. Channel estimation with selective superimposed pilot sequences under fast fading environments. In IEEE Vehicular Technology Conference. 1 ed. Vol. 60. 2004. p. 62-66
Tsuzuki, Fumiaki ; Ohtsuki, Tomoaki. / Channel estimation with selective superimposed pilot sequences under fast fading environments. IEEE Vehicular Technology Conference. Vol. 60 1. ed. 2004. pp. 62-66
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