The increasing interest in the development and eventualimplementation of indoor radio systems in the millimeter wave frequencyband has motivated research efforts with the objective of characterizingthe channel at these frequencies. Measurements were conducted at 21.6GHz, 37.2 GHz and 59.6 GHz using horn direction and omnidirectionalantennas. Among the interesting parameters to be estimated, the receivedsignal envelope, distance power law distribution, the cumulativedistribution function of long and short term fading, edge diffractionand human absorption are the most important. For wideband systems, thebehavior of the indoor channels within typical buildings must also bewell understood. The acquisition of the experimental data requires validexperimental procedures to obtain the impulse responses, and theamplitude and phase profiles which can be interpreted in terms of thesystem parameters. This paper reports on some of the design guidelinesfor millimeter wave systems
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