A high bit rate transmission technique in mobile radio cellular environment

2 January 2003

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

No. 10903038,p. 740-743
https://doi.org/10.1109/vetec.1992.245469

Abstract

A transmission technique using four-level quadrature amplitude modulation and decision feedback sequence estimation (DFSE) has been studied to find the maximum achievable bit rate in a mobile communication channel. The work was performed to design the radio subsystem for the Universal Mobile Telecommunication System (UMTS) within the RACE 1043 Mobile Project. After a brief description of the technique for a time division multiple access system (TDMA), the author presents simulations on bit error rate (BER) at the receiver output as a function of E/sub b//N/sub 0/ or C/I. Better performances and shorter TDMA blocks are observed. Performances are further improved by using a prefilter prior to the DFSE which turns the channel impulse response into a minimum phase response.

Keywords

This publication has 2 references indexed in Scilit:

Reduced-state sequence estimation with set partitioning and decision feedback
IEEE Transactions on Communications, 1988
Maximum-likelihood sequence estimation of digital sequences in the presence of intersymbol interference
IEEE Transactions on Information Theory, 1972