A space/time pre-equalization technique for down-link signal transmission in time-division-duplex (TDD) mobile multimedia communications

Shigeru Tomisato, Kazuhiko Fukawa, Tadashi Matsumoto

Research output: Contribution to journalArticle

Abstract

This paper proposes a new spatial and temporal (S/T) pre-equalization technique for time-division-duplex (TDD) mobile multimedia communication systems. Base station (BS) employs an adaptive array antenna (AAA) and an adaptive decision feedback equalizer (DFE) for up-link signal reception. The weight vectors for the up-link AAA and DFE are also used for pre-equalization of signal to be transmitted. With the S/T pre-equalization at the transmitter, the needs for equalizers at mobile station (MS) can be eliminated. In order to evaluate performances of the proposed S/T pre-equalization scheme, this paper uses a detailed propagation model which looks into the mobile propagation mechanism more in detail than conventional multipath models. Performances of the proposed S/T pre-equalizer are then demonstrated through computer simulations. The results show that the proposed scheme is effective in reducing effects of both inter-symbol and cochannel interferences.

Original languageEnglish
JournalEuropean Signal Processing Conference
Volume1998-January
Publication statusPublished - 1998
Externally publishedYes

Fingerprint

Smart antennas
Decision feedback equalizers
Equalizers
Cochannel interference
Communication
Base stations
Transmitters
Communication systems
Computer simulation

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

@article{e421bb03d6544773b26367fffda986e4,
title = "A space/time pre-equalization technique for down-link signal transmission in time-division-duplex (TDD) mobile multimedia communications",
abstract = "This paper proposes a new spatial and temporal (S/T) pre-equalization technique for time-division-duplex (TDD) mobile multimedia communication systems. Base station (BS) employs an adaptive array antenna (AAA) and an adaptive decision feedback equalizer (DFE) for up-link signal reception. The weight vectors for the up-link AAA and DFE are also used for pre-equalization of signal to be transmitted. With the S/T pre-equalization at the transmitter, the needs for equalizers at mobile station (MS) can be eliminated. In order to evaluate performances of the proposed S/T pre-equalization scheme, this paper uses a detailed propagation model which looks into the mobile propagation mechanism more in detail than conventional multipath models. Performances of the proposed S/T pre-equalizer are then demonstrated through computer simulations. The results show that the proposed scheme is effective in reducing effects of both inter-symbol and cochannel interferences.",
author = "Shigeru Tomisato and Kazuhiko Fukawa and Tadashi Matsumoto",
year = "1998",
language = "English",
volume = "1998-January",
journal = "European Signal Processing Conference",
issn = "2219-5491",

}

TY - JOUR

T1 - A space/time pre-equalization technique for down-link signal transmission in time-division-duplex (TDD) mobile multimedia communications

AU - Tomisato, Shigeru

AU - Fukawa, Kazuhiko

AU - Matsumoto, Tadashi

PY - 1998

Y1 - 1998

N2 - This paper proposes a new spatial and temporal (S/T) pre-equalization technique for time-division-duplex (TDD) mobile multimedia communication systems. Base station (BS) employs an adaptive array antenna (AAA) and an adaptive decision feedback equalizer (DFE) for up-link signal reception. The weight vectors for the up-link AAA and DFE are also used for pre-equalization of signal to be transmitted. With the S/T pre-equalization at the transmitter, the needs for equalizers at mobile station (MS) can be eliminated. In order to evaluate performances of the proposed S/T pre-equalization scheme, this paper uses a detailed propagation model which looks into the mobile propagation mechanism more in detail than conventional multipath models. Performances of the proposed S/T pre-equalizer are then demonstrated through computer simulations. The results show that the proposed scheme is effective in reducing effects of both inter-symbol and cochannel interferences.

AB - This paper proposes a new spatial and temporal (S/T) pre-equalization technique for time-division-duplex (TDD) mobile multimedia communication systems. Base station (BS) employs an adaptive array antenna (AAA) and an adaptive decision feedback equalizer (DFE) for up-link signal reception. The weight vectors for the up-link AAA and DFE are also used for pre-equalization of signal to be transmitted. With the S/T pre-equalization at the transmitter, the needs for equalizers at mobile station (MS) can be eliminated. In order to evaluate performances of the proposed S/T pre-equalization scheme, this paper uses a detailed propagation model which looks into the mobile propagation mechanism more in detail than conventional multipath models. Performances of the proposed S/T pre-equalizer are then demonstrated through computer simulations. The results show that the proposed scheme is effective in reducing effects of both inter-symbol and cochannel interferences.

UR - http://www.scopus.com/inward/record.url?scp=85019594951&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019594951&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85019594951

VL - 1998-January

JO - European Signal Processing Conference

JF - European Signal Processing Conference

SN - 2219-5491

ER -