Stochastic and Deterministic Broadband UHF RFID Channel Models for Indoor Localization

In general, RFID channel models in the ultrahigh frequency band are described as narrowband flat-fading channel models, distinguishing between line-of-sight and non-lineof- sight models. However, some RFID applications like ranging cover a much higher bandwidth which leads to frequencyselective fading channels. Therefore, new appropriate channel models, particularly for the ultra-high frequency band, have to be developed and adapted to the special needs of the RFID technology. This paper enhances and suggests deterministic and stochastic wideband channel models for ultra-high frequency RFID wideband localization applications.