Indoor propagation channel models for WLAN 802.11b at 2.4 GHz ISM band

For planning of indoor wireless LAN systems working in the 2.4 GHz ISM band, the signal propagation prediction is needed. Empirical and semi-empirical models represent an efficient approach as opposed to deterministic models due to its simplicity and superiority in calculation time. For these models, suitable empirical parameters to characterize propagation channel must be provided. In this paper, an in building linear, one-slope (OS) empirical and semi-empirical multi-wall (MW) models are studied. Different types of MW models in the office and classroom like environment have been reported. OS purely account for attenuation of power law equation with distance while MW with additional attenuation due to obstacles such as wall, partition etc. The results and accuracy of those models are compared and discussed. The developed optimal indoor OS, MWC and MWE is then tuned to slope and MW model available in wireless simulation tool namely ICS Telecom.