Diversity techniques for rf-beamforming in MIMO-OFDM systems: Design and performance evaluation

Víctor Elvira*, Javier Vía

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper we present a low-complexity MIMO-OFDM system based on adaptive signal combining in radio-frequency (RF). The limitations of the proposed architecture require the development of specific transmission and reception schemes. Specifically, we consider the problem of selecting the transmit and receive RF weights (beamformers), as well as the time and frequency linear precoders, under the assumption of i.i.d. Rayleigh channels perfectly known at the receiver side. The transmission scheme is based on orthogonal beam division multiplexing (OBDM) and minimum MSE beamforming, i.e., the data is sequentially transmitted by means of different transmit beamformers, whereas the receive beamformers are selected to minimize the MSE of the linear MMSE receiver. Finally, the performance of the proposed transmission scheme is illustrated by means of Monte Carlo simulations.

Original languageEnglish
Title of host publicationEuropean Signal Processing Conference 2009
Pages451-455
Number of pages5
Publication statusPublished - 1 Dec 2009
Event17th European Signal Processing Conference, EUSIPCO 2009 - Glasgow, United Kingdom
Duration: 24 Aug 200928 Aug 2009

Publication series

NameEuropean Signal Processing Conference
ISSN (Print)2219-5491

Conference

Conference17th European Signal Processing Conference, EUSIPCO 2009
Country/TerritoryUnited Kingdom
CityGlasgow
Period24/08/0928/08/09

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