Diversity transmission and adaptive MLSE for digital cellular radio

Citation
Cs. Bontu et al., Diversity transmission and adaptive MLSE for digital cellular radio, IEEE VEH T, 48(5), 1999, pp. 1488-1502
Citations number
16
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
ISSN journal
00189545 → ACNP
Volume
48
Issue
5
Year of publication
1999
Pages
1488 - 1502
Database
ISI
SICI code
0018-9545(199909)48:5<1488:DTAAMF>2.0.ZU;2-X
Abstract
Adaptive equalization at the mobile in conjunction with diversity transmiss ion at the base station can combat the adverse effects of both frequency-se lective and frequency nonselective fading at the mobile receiver. This is s uggested as an alternative to diversity combining at the mobile. Thus? a su bstantial saving in the mobile receiver's implementation cost and power con sumption is expected. In this paper, a time-domain multiple access system w ith two transmitting antennas at the base station and maximum-likelihood se quence estimation at the mobile is considered. Per-survivor processing (PSP ), a combined channel-tracking and sequence-estimation algorithm, has been used far improving the system performance. System performance results in th e presence of severe Doppler frequency shifts and additive white Gaussian n oise in a hat fading channel are presented. The computational complexity an d acquisition capabilities of the PSP algorithm are also presented.