Practical Remarks on Measurement and Simulation Methods to Emulate the Wireless Channel in the Reverberation Chamber

Pomianek, Adam J.; Staniec, Kamil; Jóskiewicz, Z.

doi:10.2528/pier10022605

Cited by 24 publications

(22 citation statements)

References 6 publications

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“…Moreover, RC field characteristics are able to create real environment propagation conditions, very useful in Wi-Fi communication system testing [14][15][16][17], and in the antenna testing [18]. On the other hand, also the studies of human exposure to electromagnetic field take benefit from RC in order to reproduce real exposure conditions [19,20].…”

Section: Introductionmentioning

confidence: 99%

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Gradoni¹,

Micheli²,

Moglie³

et al. 2012

PIER B

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Abstract-Reverberation chamber (RC) test facility allows to determine the absorbing cross section (ACS) of lossy materials under a random field excitation. Measurements are based on the quality factor variation produced by the sample under test presence with respect to the empty chamber condition. Simulations are based on the representation of the RC electromagnetic field by means of a random plane wave superposition. A finite-difference time-domain code is used to compute the material absorbed power and to recover a numerical ACS. The method sensibility is stressed by application to small size samples. Comparison between numerical and experimental data reveals a satisfactory agreement. Results for different materials are presented in the paper: soft foam absorbers, carbon foam sheets, and carbon/carbon sheets.

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Section: Introductionmentioning

confidence: 99%

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Gradoni¹,

Micheli²,

Moglie³

et al. 2012

PIER B

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“…The common feature of all reverberation chambers, however, is the exponential decay of the excess delay spread with N . In [25], for instance, it was found by Pomianek in measurements and by Staniec in simulations (see also [27] as well as related articles [28][29][30]), that τ rms declines with an exponent of −0.69, as shown in Fig. 5(b).…”

Section: Per As a Function Of The Reverberation Chamber Loadmentioning

confidence: 85%

“…These investigations are closely related to previous research, presented in [23][24][25][26] where measurements were conducted to obtain the excess delay spread τ rms for a different number of absorbers.…”

Section: Per As a Function Of The Reverberation Chamber Loadmentioning

confidence: 99%

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Evaluation of the Zigbee Transmission Repetition Mechanism in the Variably-Loaded Reverberation Chamber

Staniec

2012

PIER

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Abstract-The purpose of this paper is to provide both qualitative and quantitative assessment of one of the methods for providing reliable transmission in the ZigBee system. After intensive research on the time delay spread in a variably loaded reverberation chamber, this facility was then used to measure the Packet Error Rate under multipath conditions ranging from an unloaded to an overloaded chamber case. In all measurements, the key parameter was the number of allowed packet repetitions (retries). Eventually, recommendations were given regarding the optimal use of retries and their impact on ZigBee performance under different multipath scenarios obtained in the reverberation chamber and related to particular propagation environments to which these conditions are typical.

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“…Laptops were located at each end of the connection, running the Iperf software for throughput tests (UDP packets were used for transmission). The deterministic simulator developed for an exact prediction of the radio signal at selected points is based on the Ray Launching (RL) method [17][18][19][20][21][22] with the ability to track all multipath components (up to 2500 in extreme cases) and to log their respective power, delay and AoA in the horizontal and vertical planes. The basic principle consists in discretizing the transmitted wavefront into Q angularly equidistant rays which number is given by (3), where T ∈ 1, 2, 3, .…”

Section: On the Test Environments Simulations And Measurement Setupmentioning

confidence: 99%

Measurement Evaluation of the TGN Radio Channel Models Usefulness in Predicting Wlan Performance

Staniec¹,

Kowal²

2013

PIER

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Abstract-The purpose of this paper is to discuss the applicability of the TGn radio channel models in estimating the performance of WLAN transmission. The specificity of the indoor radiowave propagation is first discussed, then TGn models are introduced together with a deterministic propagation model created by the authors for predicting the radio channel higher-order parameters. Intensive WLAN measurements have been carried out in two representative propagation environments and compared to theoretical predictions obtained in four configurations: beginning with the original TGN channel models, then enhancing them by including deterministically simulated pathloss and impulse responses and eventually by generating the channel impulse response on a purely random basis. The obtained results should indicate how accurately the general TGn channel models match measurements in real environments and how they compare to proposed successive modifications.

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Practical Remarks on Measurement and Simulation Methods to Emulate the Wireless Channel in the Reverberation Chamber

Cited by 24 publications

References 6 publications

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Absorbing Cross Section in Reverberation Chamber: Experimental and Numerical Results

Evaluation of the Zigbee Transmission Repetition Mechanism in the Variably-Loaded Reverberation Chamber

Measurement Evaluation of the TGN Radio Channel Models Usefulness in Predicting Wlan Performance

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