MECHANISMS GOVERNING WIRELESS PROPAGATION BETWEEN DIFFERENT FLOORS INBUILDINGS (REPRINTED FROM IEEE TRANSACTIONS ANTENNAS PROPAGATION, VOL41, PG 787, 1993)

The potential implementation of wireless radio local area networks (LA N) and personal communication services (PCS) inside buildings requires a thorough understanding of signal propagation within buildings. This paper develops a theory that explains propagation between a transmitt er and receiver located on different floors of a building. Depending o n the structure of the building and location of the antennas, either d irect ray propagation through floors or diffraction outside the buildi ng will determine the propagation characteristics and range dependence of the signal sector average as the number of floors between the tran smitter and receiver is increased.