Path-loss and time dispersion parameters for indoor UWB propagation

2006 ◽  
Vol 5 (3) ◽  
pp. 550-559 ◽  
Author(s):  
A. Muqaibel ◽  
A. Safaai-Jazi ◽  
A. Attiya ◽  
B. Woerner ◽  
S. Riad
Keyword(s):  
Path Loss ◽  
Dispersion Parameters ◽  
Time Dispersion

scholarly journals Wideband Channel Characterization for 6G Networks in Industrial Environments

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2015
Author(s):  
Ahmed Al-Saman ◽  
Marshed Mohamed ◽  
Michael Cheffena ◽  
Arild Moldsvor
Keyword(s):  
Radio Channel ◽  
Path Loss ◽  
Data Rate ◽  
Delay Spread ◽  
Channel Measurements ◽  
Data Traffic ◽  
Dispersion Parameters ◽  
Time Dispersion ◽  
K Factor ◽  
Industrial Environments

Wireless data traffic has increased significantly due to the rapid growth of smart terminals and evolving real-time technologies. With the dramatic growth of data traffic, the existing cellular networks including Fifth-Generation (5G) networks cannot fully meet the increasingly rising data rate requirements. The Sixth-Generation (6G) mobile network is expected to achieve the high data rate requirements of new transmission technologies and spectrum. This paper presents the radio channel measurements to study the channel characteristics of 6G networks in the 107–109 GHz band in three different industrial environments. The path loss, K-factor, and time dispersion parameters are investigated. Two popular path loss models for indoor environments, the close-in free space reference distance (CI) and floating intercept (FI), are used to examine the path loss. The mean excess delay (MED) and root mean squared delay spread (RMSDS) are used to investigate the time dispersion of the channel. The path loss results show that the CI and FI models fit the measured data well in all industrial settings with a path loss exponent (PLE) of 1.6–2. The results of the K-factor show that the high value in industrial environments at the sub-6 GHz band still holds well in our measured environments at a high frequency band above 100 GHz. For the time dispersion parameters, it is found that most of the received signal energy falls in the early delay bins. This work represents a first step to establish the feasibility of using 6G networks operating above 100 GHz for industrial applications.

scholarly journals Experimental UWB Propagation Channel Path Loss and Time-Dispersion Characterization in a Laboratory Environment

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Lorenzo Rubio ◽  
Juan Reig ◽  
Herman Fernández ◽  
Vicent M. Rodrigo-Peñarrocha
Keyword(s):  
Communication Systems ◽  
Path Loss ◽  
Propagation Channel ◽  
Dispersion Parameters ◽  
Laboratory Environment ◽  
High Data ◽  
Time Dispersion ◽  
Data Rates ◽  
Successful Design ◽  
Uwb Channel

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 anallRake (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 7.5 GHz in accordance with the UWB frequency range (3.1–10.6 GHz).

Path-loss and time dispersion parameters for indoor UWB propagation

2006 ◽  
Vol 5 (2) ◽  
pp. 550-559 ◽  
Author(s):  
A. Muqaibel ◽  
A. Safaai-Jazi ◽  
A. Attiya ◽  
B. Woerner ◽  
S. Riad
Keyword(s):  
Path Loss ◽  
Dispersion Parameters ◽  
Time Dispersion

scholarly journals Measurements of Building Transmission Loss and Delay Spread at 2.5 GHz

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
L. H. Gonsioroski ◽  
L. da Silva Mello
Keyword(s):  
Transmission Loss ◽  
Signal Transmission ◽  
Delay Spread ◽  
Dispersion Parameters ◽  
Rms Delay Spread ◽  
Urban Buildings ◽  
Time Dispersion ◽  
The Mean ◽  
Mean Excess Delay

This paper presents the results of measurements of signal transmission loss at 2.5 GHz through 10 urban buildings. This allows the characterization of different types of buildings by effective attenuation constants and consideration of the contribution of the transmitted signal in microcell coverage predictions. Power delay profiles (PDPs) of the received signal were also measured and used to determine the time dispersion parameters of the channel, including the mean excess delay and the rms delay spread.

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