Performance evaluation of adaptive H8 space-time equalizers for wireless communication systems with asynchronous interference

Author

Chaves, F.de S. ; de Almeida, A.L.F. ; Mota, J.C.M.

Author_Institution

State Univ. of Campinas, Campinas

fYear

2006

fDate

3-6 Sept. 2006

Firstpage

322

Lastpage

327

Abstract

Packet-switched multi-access communication systems may have difficulties on detecting a user signal due to a momentary interference, which is caused by packet transmissions of a co-channel interferer user. Asynchronous co-channel interference impacts directly the performance of the reception process, specially in the uplink (mobile to base station transmission). In this work, the H_infin filter is configured as an adaptive space-time equalizer and its performance is compared to that of the RLS- based space-time equalizer, in the presence of asynchronous interference. Computational simulations are performed for single- input multiple-output (SIMO) channels with spatial diversity.

Keywords

adaptive filters; cochannel interference; equalisers; mobile communication; signal detection; wireless channels; adaptive H_infin filter; asynchronous cochannel interference; mobile communication; packet-switched multiaccess communication system; performance evaluation; signal detection; space-time equalizer; wireless communication system; Adaptive filters; Base stations; Computational modeling; Equalizers; Filtering; Interchannel interference; Intersymbol interference; Mobile communication; Robustness; Wireless communication; Asynchronous interference; H∞ filtering; robust equalization; space-time equalization; wireless communications;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Symposium, 2006 International

Conference_Location

Fortaleza, Ceara

Print_ISBN

978-85-89748-04-9

Electronic_ISBN

978-85-89748-04-9

Type

conf

DOI

10.1109/ITS.2006.4433292

Filename

4433292