Enhanced Parameter Determination of an Empirical UWB Channel Model for European Building Standards

Abstract

This paper presents ultra-wideband (UWB) indoor propagation channel measurement techniques and results for the parameters of an empirical channel model. To analyze the channel impulse response an improved technique is applied to remove the parasitic effects of the employed hardware properly. The transmission between the ports of a transmit (TX) and receive antenna (RX) is measured with a vector network analyzer (VNA). As the impulse responses of the antennas are deconvolved from the measurements, the channel transfer function in the frequency range of 2-8 GHz can be determined. This approach is applicable as omnidirectional antennas with almost angularly independent impulse responses are used. A statistical model is employed, based on a large database measured in a commercial indoor environment. The measurements include line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios, where the distance between the transmitter and receiver is varied from 1-5.5 m. To characterize small-scale and large-scale statistics of the channel, at each receiver position 25 measurements are accomplished over a grid with 5x5 spatial points.

A reconfigurable software defined ultra-wideband impulse radio transceiver

“…are derived according to Ott et al (2009). Regarding the entire radio link, this enables the extraction of the channel transfer function H CH from the antenna transfer characteristic defined in .…”

UWB outdoor channel environments: analysis of experimental data collection and comparison to IEEE 802.l5.4a UWB channel model

“…Fundamental results in several diverse environments have been studied in Cramer et al (2002), Schuster and Bolcskei (2007), Ott et al (2009), Chong and Yong (2005), Li et al (2005), Sun and Peng (2009), Xiang (2007), Richardson et al (2006), Emami et al (2004Emami et al ( , 2005, Renzo et al (2006), Liang and Cheng (2008), Kim et al (2005) and Kannan et al (2004). Results for indoor channel environments are provided in Cramer et al (2002), Schuster and Bolcskei (2007), Ott et al (2009), Chong and Yong (2005), Li et al (2005) and Sun and Peng (2009). Vehicular environments are studied in Xiang (2007) and Richardson et al (2006).…”

“…Various Outdoor channels are examined in Molisch et al (2006Molisch et al ( , 2007, Emami et al (2004Emami et al ( , 2005, Renzo et al (2006), Liang and Cheng (2008), Kim et al (2005) and Kannan et al (2004). Suburban-like microcell and open farm land are discussed in Molisch et al (2006Molisch et al ( , 2007.…”

“…In Emami et al (2005), results are presented for ray tracing techniques used to derive an outdoor channel model based on narrow band channel sounding. In Renzo et al (2006) a study is presented for forested, hilly, and suburban environments at distances up to 60 m, 70 m, and 52 m respectively. The authors provide a statistical model and report on the path loss exponent, mean received power, and delay spread.…”

Real-time signal detection and classification algorithms for body-centered systems

“…In the literature, several measurements and models of the UWB channel for indoor and outdoor propagation can be found [183], [184], [185] and [187].…”