Xiongwen Zhao

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In this paper, empirical channel models and parameters are derived from the wideband measured data at 5.3 GHz in outdoor mobile communications. The path loss exponents and intercepts are obtained by using the least square method. The mean excess delay and mean root-mean-square (rms) delay spread are within 29–102 ns and 22–88 ns, respectively. The(More)
This paper presents and analyzes the results of millimeter-wave 60-GHz frequency range propagation channel measurements that are performed in various indoor environments for continuous-route and direction-of-arrival (DOA) measurement campaigns. The statistical parameters of the propagation channel, such as the number of paths, the RMS delay spread, the path(More)
The modeling results from wideband radio channel measurements are presented for two environments: rural and indoor. The paper focuses on the average and instantaneous characteristics of received power including: path loss, shadow fading, power delay profiles, and rms delay spreads. Furthermore, the cross correlation between shadowing of the path loss and(More)
A new area of digital television broadcasting has emerged in the from of hand held reception. This has created a need for new standard channel models, which describe more accurately the conditions in portable reception. Hence, the Finnish partners of the multinational CELTIC Wing-TV project performed a comprehensive measurement campaign during autumn 2005.(More)
5G, the new generation of mobile networks, attracts lots of interests and attentions in wireless communication with its aggressive performance goals. To be able to provide much higher data rate than today, 5G mobile networks will operate at frequencies higher than the crowded frequency bands used today, with broader bandwidth. Understanding the propagation(More)
II. MEASUREMENT SYSTEM SETUP AND CAMPAIGNS Abstract—The power delay profiles (PDPs), tap Ricean factors, and tap Doppler spectra due to channel small scale effects are derived and studied in this paper based on the wideband measurements performed in rural and suburban with 100 MHz bandwidth at 5.25 GHz and 2.45 GHz for beyond 3G (B3G) link and system level(More)
 Abstract—In this paper, based on outdoor microcellular channel measurements at 32 GHz for fifth generation (5G) radio systems, a comprehensive channel modeling, simulation and validation are performed. The directional-scan-sounding measurements using a horn antenna rotated with an angular step at the receiver are carried out, which constitutes virtual(More)