Time-Domain MIMO Channel Sounder Based on Code-Division Multiplexing

2012 ◽  
Vol 61 (8) ◽  
pp. 2325-2327 ◽  
Author(s):  
Concepcion Garcia-Pardo ◽  
Jose-Maria Molina-Garcia-Pardo ◽  
Leandro Juan-Llacer
Keyword(s):  
Time Domain ◽  
Mimo Channel ◽  
Channel Sounder ◽  
Code Division Multiplexing

scholarly journals Real-Time Millimeter-Wave MIMO Channel Sounder for Dynamic Directional Measurements

2019 ◽  
Vol 68 (9) ◽  
pp. 8775-8789 ◽  
Author(s):  
Celalettin Umit Bas ◽  
Rui Wang ◽  
Seun Sangodoyin ◽  
Dimitris Psychoudakis ◽  
Thomas Henige ◽  
...  
Keyword(s):  
Real Time ◽  
Millimeter Wave ◽  
Mimo Channel ◽  
Channel Sounder

scholarly journals Real-Time MIMO Channel Sounder for Emulation of Distributed Ultrawideband Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Rudolf Zetik ◽  
Martin Kmec ◽  
Jürgen Sachs ◽  
Reiner S. Thomä
Keyword(s):  
Real Time ◽  
Binary Sequence ◽  
Mimo Radar ◽  
Mimo Channel ◽  
Multiple Time ◽  
Channel Sounder ◽  
Radar Systems ◽  
Correlation Processing ◽  
Basic Parameters ◽  
Ultrawideband Systems

This paper introduces an ultrawideband (UWB) channel sounding system. Its novel architecture allows real-time measurements of multiple time-variant radio propagation channels in different ultrawide frequency bands. Its architecture allows emulation of multiuser systems, sensor networks, localization systems, and distributed MIMO radar systems. The sounder uses a maximum length binary sequence (MLBS) excitation signal and correlation processing in the receiver. Its synchronous multichannel operation is supported by excellent timing stability and low power consumption of miniature size modules based upon custom integrated SiGe circuits. The paper describes the architecture, design, calibration, basic parameters, and application examples of the sounding system.

Indoor Multipath Interference Cancellation Using MMSE-CMA Estimator with 2.45 GHz of MIMO Channel Measurement

2015 ◽  
Vol 781 ◽  
pp. 89-92 ◽  
Author(s):  
Atikom Suppayasarn ◽  
Sarun Duangsuwan ◽  
Sathaporn Promwong
Keyword(s):  
Wireless Communication ◽  
Time Domain ◽  
Interference Cancellation ◽  
Communication Systems ◽  
Mimo Channel ◽  
Wireless Communication Systems ◽  
Multipath Interference ◽  
Channel Characterization ◽  
The Time Domain ◽  
Number Of Iterations

This paper studies an indoor multipath interference cancellation using the MMSE-CMA estimator for the unlicensed at 2.45 GHz of wireless communication systems. The proposed of the MMSE-CMA estimator can mitigate a superposition of the multipath interference at the receiver. As the result, the magnitudes of the channel characterization in the time domain are shown between the measured and estimated channel as a difference of number of iterations. Furthermore, we also confirm the multipath interference cancellation with the eye diagrams.

A Dual Band MIMO Channel Sounder at 2.2 and 3.5 GHz

2008 ◽  
Author(s):  
Hanna Farhat ◽  
Ronan Cosquer ◽  
Guy Grunfelder ◽  
Laurent Le Coq ◽  
Ghais El Zein
Keyword(s):  
Dual Band ◽  
Mimo Channel ◽  
Channel Sounder

scholarly journals Device-Free Indoor Location Estimation System Using Commodity Wireless LANs

2021 ◽  
Author(s):  
Yuan Zhou ◽  
Minseok Kim ◽  
Hideaki Momose ◽  
Satoru Yasukawa
Keyword(s):  
Low Cost ◽  
Wireless Lans ◽  
Estimation Method ◽  
Location Estimation ◽  
Mimo Channel ◽  
Indoor Location ◽  
Channel Sounder ◽  
Position Detection ◽  
Estimation System ◽  
Device Free

In recent years, since the propagation channel characteristics have been effectively used for applications such as motion sensing, position detection, etc. A great deal of attention is attracted to channel sounding methods easy to utilize using low-cost devices. This paper presents a device-free indoor location estimation method using spatio-temporal features of radio propagation channels using the 2.4-GHz band 3-by-3 MIMO channel sounder developed using commodity wireless LANs. The measurement results demonstrated a reasonable performance of the proposed method with small number of antennas.

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