Experimental UWB propagation channel path loss and time-dispersion characterization in a laboratory environment

The knowledge of the propagation channel properties is an important issue for a successful design of ultrawideband (UWB) communication systems enabling high data rates in short-range applications. From an indoor measurement campaign carried out in a typical laboratory environment, this paper analyzes the path loss and time-dispersion properties of the UWB channel. Values of the path loss exponent are derived for the direct path and for a Rake receiver structure, examining the maximum multipath diversity gain when an all Rake (ARake) receiver is used. Also, the relationship between time-dispersion parameters and path loss is investigated. The UWB channel transfer function (CTF) was measured in the frequency domain over a channel bandwidth of 7.5GHz in accordance with the UWB frequency range (3.1 10.6GHz).The authors would like to thank the anonymous reviewer for his constructive suggestions and useful comments which have improved the final quality of the paper. This work has been funded in part by the Spanish Ministerio de Ciencia e Innovacion (TEC-2010-20841-C04-1).Rubio Arjona, L.; Reig, J.; Fernández González, HA.; Rodrigo Peñarrocha, VM. (2013). Experimental UWB propagation channel path loss and time-dispersion characterization in a laboratory environment. International Journal of Antennas and Propagation. 2013:1-7. doi:10.1155/2013/350167S17201