Characterization of indoor penetration loss at ISM band

Evaluation of indoor penetration loss and floor loss for a DVB-H signal at 514 MHz

“…For a 12 cm uniform plater wall, [19] obtains a value of about 4 dB for frequencies around 1 GHz. In the 2.4 GHz ISM band, penetration losses of 1.4 -2.9 dB are obtained for 38.5 mm thickwood and 15-28 dB for 250 mm concrete walls [18]. These values of the presented studies are specific for a certain type of walls and may be part of the distribution presented in Fig.…”

“…For these studies a measurement setup at two sides of a specific wall (often in a laboratory) is placed. Indoor penetration loss is investigated in the 2.4 GHz ISM (industrial, scientific and medical) frequency band [18], [20] and around 800 -900 MHz [20]- [22]. A model for penetration within buildings is proposed in [11], [23] and parameters at 1800 MHz are proposed.…”

Simple Indoor Path Loss Prediction Algorithm and Validation in Living Lab Setting

“…For thick concrete walls a loss of 15 dB [36] was used. The model's penetration loss database can easily be extended with penetration losses for various other materials using numbers and tables of [35][36][37].…”

“…For other wall types, we have based the loss values on available literature. For glass (windows or glass doors), 2 dB was used [35]. The importance of correct wall penetration loss values is demonstrated in [29].…”

Coverage prediction and optimization algorithms for indoor environments

“…penetration losses for various other materials using results from additional measurements or numbers and tables of [31,32].…”