Performance of IR-UWB at 60 GHz for Ad hoc Networks with Directive Antennas

Ghannudi, H. El; Clavier, Laurent; Bendjaballah, A.; Boé, A.; Rolland, P.A.

doi:10.1109/icu.2006.281531

Cited by 9 publications

(5 citation statements)

References 14 publications

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“…Asynchronous TH-PPM-UWB with binary data is considered [19] and represented in Figure 1. Let ω(t) be the transmitted signal corresponding to one source bit.…”

Section: Network Configuration and System Modelmentioning

confidence: 99%

α-stable interference modeling and cauchy receiver for an IR-UWB Ad Hoc network

Ghannudi

Clavier

Azzaoui

et al. 2010

IEEE Trans. Commun.

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In this paper we investigate ad hoc networks based on impulse radio ultra wideband. Due to multiple access, the interference distribution is not Gaussian. One important reason for errors is the presence of close interferers generating pulse collision. However such events are rare and we propose an α-stable model compatible with this fact due to its heavy tailed distribution. We derive the analytical expression of the two significant parameters. They depend on the attenuation coefficient, the users' density, the pulse collision probability and the pulse shape. We finally propose receiver strategies (Cauchy receiver and p-norm) that outperforms the classical Gaussian receiver.

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“…Asynchronous TH-PPM-UWB with binary data is considered [19] and represented in Figure 1. Let ω(t) be the transmitted signal corresponding to one source bit.…”

Section: Network Configuration and System Modelmentioning

confidence: 99%

α-stable interference modeling and cauchy receiver for an IR-UWB Ad Hoc network

Ghannudi

Clavier

Azzaoui

et al. 2010

IEEE Trans. Commun.

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“…Instead of dealing with this complex relation, we take a statistical approach for analysis and simulation. In this approach, we obtain the delay and fading coefficients of the paths using model (1), and then apply the modification vector given in (5).…”

Section: Incorporation Of Polarizationmentioning

confidence: 99%

“…Several approaches have been proposed to improve the performance of the 60 GHz wireless systems through phase noise suppression and different modulation techniques [2]- [4]. Use of directional antennas is also an effective method to mitigate multipath effects for the 60 GHz band [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

Polarization Effects for Indoor Wireless Communications at 60 GHz

2008

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This letter studies the performance of indoor wireless communication systems operating at 60 GHz with different polarization schemes. Circular polarization is known to reduce multipath effects in line-of-sight (LOS) environments in the 60 GHz band. We propose a modified channel model based on the IEEE 802.15.3c channel model to incorporate the polarization effects. We then use this model to evaluate the error performance of a wireless communication system that uses circular polarization. The results are compared with linear polarization for LOS environments.

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“…Diversity gain relies on two signals that are decorrelated; two signals that experiences two different fading characteristics. Separating two antennas is one way; another way is to use two different polarizations in the same antenna [4]. When an EM field is incident upon an object, the polarization of the signal is altered to some degree.…”

Section: Introductionmentioning

confidence: 99%