Measuring, modeling, and characterizing of indoor radio channel at 5.8 GHz

Cuiñas, Íñigo; Sanchez, M.G.

doi:10.1109/25.923064

Cited by 55 publications

(33 citation statements)

References 12 publications

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“…B x% ≥ arccos(x/100) πτ rms (10) As reported in multiple literature sources (e.g., [9,14,[16][17][18]) where the dispersive parameters of various radio channels were both measured and simulated, the values of τ rms lie between 5 ns and 200 ns in indoor environments. In microcells, τ rms is usually found between 0.35 µs and 2 µs.…”

Section: On the Radio Channel Time Propertiesmentioning

confidence: 83%

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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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Section: On the Radio Channel Time Propertiesmentioning

confidence: 83%

“…In [7], B x% (∆f x% ) is defined by Equation (8) as the Fourier transform of PDP, where ∆f x% denotes frequency range, for which signal components are correlated at x%, where x is usually found to be 50%, or 70-90% [7,9,10].…”

Section: On the Radio Channel Time Propertiesmentioning

confidence: 99%

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

Staniec

2012

PIER

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“…Since the signal energy is concentrated within a bandwidth of 18 MHz [1], we consider that MHz. Let (4) Assume that the channel is of unity gain. The probability density function of is given by [25, ch.…”

Section: Synchronization Modelmentioning

confidence: 99%

“…Expanding (6) by (2) and substituting the resultant expression into (7) yields (13) where (14) (15) and 4 s, , are independent, zero-mean, circularly symmetric complex-Gaussian random variables with variance (16) In (16), the signal-to-noise ratio (SNR) is computed by , and (17) 4 In the derivation, we make use of the facts that 41 T = 1 and B = 0…”

Section: Probability Of Synchronization Failurementioning

confidence: 99%

“…It is possible that the delay spread is small and the coherence bandwidth is greater than 20 MHz. 1 In [4], measurement results have shown that coherence bandwidths recorded in a university laboratory were around 40 MHz for a correlation level of 0.5, indicating that the channels were frequency nonselective. In [5], results measured in a residential room have indicated that in most cases the root-mean square (rms) delay spreads were less than 10 ns.…”

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confidence: 99%

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Timing-Synchronization Analysis for IEEE 802.11a Wireless LANs in Frequency-Nonselective Rician Fading Environments

Yip

2004

IEEE Trans. Wireless Commun.

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Abstract-This paper derives and computes the probability of synchronization failure fail for IEEE 802.11a wireless LANs on frequency-flat Rician fading channels. For a frequency offset within 232 kHz, it is shown that its effect on the synchronization performance is minor. The ds 0 ratios required to achieve fail = 10 3 and 10 4 are computed, where ds is the data-symbol energy. We find that ds 0 ratios over 20 dB are generally required for channels with Rician factors 6 dB. In particular, ds 0 ratios that yield fail = 10 4 exceed 30 dB for 4 dB.Index Terms-Frequency-nonselective channel, IEEE 802.11a, orthogonal frequency division multiplexing (OFDM), probability of synchronization failure, Rician fading, sliding correlator, timing synchronization, wireless local area network (LAN).

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Wideband measurements for Multimedia Wireless System radio links

Sánchez

Alejos

Cuiñas

2002

Micro & Optical Tech Letters

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The results of a measurement campaign conducted to determine the wideband behavior of the radio channel assigned to Multimedia Wireless Systems (MWS) are described in this Letter. It has been found that small multipath components are present in the impulsive response of radio channels operating at 40 GHz with 80‐MHz bandwidths. Multipath and delay spread are limited by the spatial filtering of directive antennas used in MWS and the low reflection coefficient of building materials at these frequencies. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 224–227, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10423

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Measuring, modeling, and characterizing of indoor radio channel at 5.8 GHz

Cited by 55 publications

References 12 publications

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

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

Timing-Synchronization Analysis for IEEE 802.11a Wireless LANs in Frequency-Nonselective Rician Fading Environments

Wideband measurements for Multimedia Wireless System radio links

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