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IEICE TRANSACTIONS on Communications

Field Trial of a Space-Time Equalizer for TDMA Mobile Communications in a Suburban Micro-Cell Environment

Takeshi TODA, Yuukichi AIHARA, Yukiyoshi KAMIO, Jun-ichi TAKADA

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Summary :

A field trial, within a suburban macro-cell environment, of a space-time (ST) equalizer for TDMA mobile communication systems is described. The ST equalizer was a cascade connection of two array processors for a four-antenna array and a two-branch-metric-combining maximum-likelihood sequence estimation (MLSE) that was designed to obtain full space- and path-diversity gains from first-arrival and one-symbol-delayed signals while suppressing excessively long-delayed inter-symbol interference (ISI). The radio frequency was 3.35 GHz, the transmission rate was 4.096 Mb/s, and the modulation was QPSK. The long-delayed ISI reduction and the space-path diversity effect of the ST equalizer was validated by Eb/N0 vs. bit-error-rate (BER) curves with respect to delay spread and antenna spacing as compared with the case of an array processor alone being used.

Publication
IEICE TRANSACTIONS on Communications Vol.E86-B No.6 pp.1954-1960
Publication Date
2003/06/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Wireless Communication Technology

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