Cellular Radio Performance Engineering
Cellular Radio Performance Engineering
Rayleigh fading channels in mobile digital communication systems. I. Characterization
IEEE Communications Magazine
Rayleigh Fading Channels in Mobile Digital Communication Systems Part II: Mitigation
IEEE Communications Magazine
Emerging wireless broadband networks
IEEE Communications Magazine
Air interface access schemes for broadband mobile systems
IEEE Communications Magazine
Measurements and models for 38-GHz point-to-multipoint radiowave propagation
IEEE Journal on Selected Areas in Communications
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This paper focuses on results obtained in the ACTS SAMBA project. Theproject's main objective was the implementation of a Trial Platformproviding a full duplex radio link of 34 Mbit/s to prove the technicalfeasibility with today's technology and to evaluate the main MBSfunctionality for the public cellular MBS segment. Thus, extensive fieldtrials were carried out in the city of Aveiro, Portugal, in differentenvironments and using the 40 GHz band. The paper starts with anintroductory analysis of the radio channel impairments and discusses thevarious appropriate mitigation techniques. A brief description of theSAMBA Trial Platform used in the measurements campaign is presentedconcentrating on the description of the main technical solutions relatedwith the physical layer. Then, representative measurements resultscollected in an urban and in an indoor environment are analysed so as toevaluate the system performance, focusing on the cell coverage area andtransmission quality. This study is made analysing parameters such as:received power level, bit error rate, fitted Rice distributionparameters to model the small-scale fading, power level cumulativedistribution functions, level crossing rate and average fade duration ofthe signals received in the two diversity antennas and the resultedsignal after combination. The achieved results constitute a significantforward step for the MBS development.