Radio frequency (RF) propagation path gain (PG) measurements were made in typical narrow straight and wide straight indoor corridors at 868/915 MHz in a modern multi-storied building utilizing RF equipment and Matlab simulations of Ray-tracing technique, free space model, ITU-R model and full-3D Ray-tracing model of Wireless Insite. Measured PG values showed similar patterns with simulated/modeled values in most of the cases. The research work presented in this paper is predominately geared towards characterizing radio link for Wireless Sensor Communications/Networks in typical indoor corridor environments. © 2011 IEEE.