Multiple-input multiple-output (MIMO) radio channel measurements

2002 ◽  
Author(s):  
C.C. Martin ◽  
J.H. Winters ◽  
N.R. Sollenberger
Keyword(s):  
Radio Channel ◽  
Multiple Input Multiple Output ◽  
Channel Measurements ◽  
Multiple Input ◽  
Input Multiple Output

scholarly journals Interleaved-MIMO DAS for Indoor Radio Coverage: Guidelines for Planning

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
E. M. Vitucci ◽  
F. Fuschini ◽  
V. Degli-Esposti ◽  
L. Tarlazzi
Keyword(s):  
Radio Channel ◽  
Multiple Input Multiple Output ◽  
Channel Measurements ◽  
Deployment Strategy ◽  
Indoor Coverage ◽  
Indoor Radio ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Coverage Extension ◽  
The Impact

The combination of distributed antenna systems (DAS) and multiple input multiple output (MIMO) schemes opens the way to a variety of coverage solutions for indoor environment. In this paperinterleaved-MIMO (i-MIMO) DASindoor coverage extension strategies are studied. Their performance in high-order MIMO cases is investigated in realistic conditions through LTE-A link-level simulations, based on statistical data extracted from radio channel measurements; the impact of the deployment strategy on performance is then evaluated and useful planning guidelines are derived to determine the optimum deployment for a given propagation environment.

scholarly journals LoS Theoretical and Experimental MIMO Study from 1–40 GHz in Indoor Environments

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1688
Author(s):  
Juan Pascual-García ◽  
Maria-Teresa Martinez-Ingles ◽  
Davy P. Gaillot ◽  
Leandro Juan-Llácer ◽  
Jose-Maria Molina-Garcia-Pardo
Keyword(s):  
Radio Channel ◽  
Multiple Input Multiple Output ◽  
Great Accuracy ◽  
Delay Spread ◽  
Indoor Environments ◽  
Received Power ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Indoor Scenarios ◽  
Tracing Techniques

In this work, line-of-sight multiple-input multiple-output (MIMO) measurements in the frequency range from 1 GHz to 40 GHz are presented for an indoor environment in the scope of new 5G bands. For the sake of comparison, the measured radio channels are reproduced with great accuracy using ray-tracing techniques by tuning all propagation mechanisms. The relative received power, root mean square of the delay spread (RMS DS) and K-factor provide an insight of how propagation behaves in indoor scenarios within a large and contiguous frequency band. Results show that a decay factor behaves nearly constant with frequency and the RMS DS is quite sensible to frequency. From these results, faithful one-slope 5G models are proposed. Finally, the contribution of the simulated propagation mechanisms to the radio channel is investigated which suggests that the simulation of the low-mmW radio channel can be simplified.

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