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The interference produced by WiMAX mobile wireless transmissions operating in the 3.5 GHz band on a WiMedia-defined ultra-wideband (UWB) wireless link is experimentally analyzed in this paper. The investigation includes standard IEEE 802.16e WiMAX, and ECMA-368 UWB equipment as defined by the WiMedia alliance. A conventional meeting room scenario has been considered for the measurements. The experimental...
Path loss at higher distances is much higher for NLOS in the office due to solid walls in the propagation path. In LOS, the results are converging with increasing distance. In our indoor campaign, these large distances can only be found on corridors. At small distances the path loss is about 10 dB less in the aircraft than in the office for all frequencies, which can also be observed in PL0. The delay...
In this paper a measurement technique is presented, which allows the derivation of scaled bistatic radar cross sections of objects at ILS frequencies with a very simple measurement setup and an easy post processing procedure. Its functionality is proven with simple reference objects, which can be calculated by common simulation tools. First sets of bistatic RCS are presented for the large aircraft...
Recently, frequencies at 60 GHz and beyond have been regaining interest for high-speed wireless communication applications (Laskar, et al., August 2007), (Piesiewicz, et al.). Decreasing technology costs on one hand and an increasing demand for higher data rates on the other hand, make a spectral shift to the millimeter wave range desirable. In the long run, the sub-millimeter wave range could be...
The frequencies above 100 GHz are becoming more attractive worldwide in the area of wireless communications, especially for short-range indoor applications. In this paper results are presented for channel measurements in W-Band (75-110 GHz), which were conducted with a vector network analyzer for chosen realistic application scenarios. Apart from measurement results, this paper includes measurements...
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