학술논문

A Semi-Reverberation Chamber Configuration to Emulate Second-Order Descriptors of Real-Life Indoor Wireless Propagation Channels
Document Type
Periodical
Source
IEEE Transactions on Electromagnetic Compatibility IEEE Trans. Electromagn. Compat. Electromagnetic Compatibility, IEEE Transactions on. 63(1):3-10 Feb, 2021
Subject
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Antenna measurements
Wireless communication
Delays
Loading
Correlation
Transmitting antennas
Horn antennas
Absorbing material
autocorrelation function (ACF)
power delay profile (PDP)
reverberation chamber (RC)
+%24%5Cmathbf+{%5Ctau+}%5F{%5Cmathbf+{RMS}}%24<%2Ftex-math>+<%2Finline-formula>%22">root mean square (RMS) delay spread $\mathbf {\tau }_{\mathbf {RMS}}$
Language
ISSN
0018-9375
1558-187X
Abstract
In this article, a new reverberation chamber (RC) loading configuration is proposed that consists of using the conventional central barrier, i.e., absorbing material arranged on the floor of the RC, together with anechoic corners. The latter are built covering the two edges of the chamber and the nearby floor with absorbing material. This configuration, termed Semi-RC, is tested against both emulated and actual indoor wireless propagation channels. The former ones are obtained using the RC of the Università degli Studi di Napoli “Parthenope.” The key metrics adopted to discuss the performance of the proposed approach are based on second-order channel descriptors, i.e., the power delay profile (PDP) and the autocorrelation function. Experimental results confirm the soundness of the proposed approach that outperforms the state-of-the-art central barrier loading configuration when dealing with channels calling for very steep-descendant PDPs. The two configurations result in comparable performance when slowly descendant PDPs are considered.