Control information exchange through UWB in cognitive radio networks
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
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Major envisioned commercial Ultra Wideband (UWB) applications are indoor, nonetheless, the suitability of UWB technology for data communication over longer ranges may also have a relevant role in the outdoor wireless communications. In this paper we evaluate and compare the achievable range-data rate performance of a reliable UWB communication link for long ranges, considering an Impulse Radio UWB system and the use of M-ary PAM and M-ary PPM modulations. The free space, lognormal shadowing and two-ray path loss models are considered. We incorporate the UWB frequency dependency of two different ground reflection materials as well as different electric field polarizations in the two-ray path loss model. Tables with the achievable range-data rate performance of the UWB link are provided. Novel results of this research work indicate that, complying with the FCC emission limits, a reliable outdoor UWB link can be established by compromising between range and speed of transmission.