Spatial diversity analysis for digital TV systems

Varela, Mercedes Sánchez; Sánchez, Manuel García; Lukama, L.; Edwards, D.J.

doi:10.1109/11.969369

Cited by 10 publications

(2 citation statements)

References 7 publications

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“…The resulting patterns, shown in Fig. 4, agree closely with previous experimental [33,34] and stochastic [35] models.…”

Section: Spatial Variabilitysupporting

confidence: 87%

Spatio-temporal ultrawideband indoor propagation modelling by reduced complexity geometric optics

Malik¹,

Stevens²,

Edwards³

2007

IET Commun.

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A simple and efficient virtual-source ray-tracing technique for the simulation of indoor wideband radio and optical propagation channels is proposed. The parametric deterministic model considers the room geometry, transceiver locations, material properties and probe signal types. It is applied to the indoor ultrawideband channel in the FCC-allocated 3.1-10.6 GHz band, and a range of novel results are presented to illustrate several possible applications. The channel small-scale fading statistics and spatial variability are examined by synthesising a densely sampled aperture. Multiple-antenna array systems are simulated to evaluate multiple-input multiple-output performance. The multipath angular characteristics are analysed from the simulated azimuth-delay profile. The simulation results closely match previous channel measurement studies and statistical models, validating the proposed technique. It is shown that specular reflection is dominant, and power convergence is achieved with three reflections in a typical indoor environment. Thus, it is demonstrated that despite its simplicity, the model yields reliable and accurate results, and can therefore be a useful tool for indoor wireless network planning and performance prediction.

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“…The resulting patterns, shown in Fig. 4, agree closely with previous experimental [33,34] and stochastic [35] models.…”

Section: Spatial Variabilitysupporting

confidence: 87%

Spatio-temporal ultrawideband indoor propagation modelling by reduced complexity geometric optics

Malik¹,

Stevens²,

Edwards³

2007

IET Commun.

Self Cite

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“…However, portable DVB-T reception, in particular in indoor conditions is highly affected by signal attenuation due to the building penetration loss and frequency selective multipath fading [3]. Spatial, radiation pattern and polarization diversity techniques have been proven to be good techniques to mitigate these propagation effects and to improve the robustness of DVB-T channel reception [4,5]. So, from product point of view, it could be interesting to propose a compact and light weight solution with antenna diversity.…”

Section: Introductionmentioning

confidence: 99%

Compact USB stick with integrated antenna diversity for digital terrestrial TV reception

Minard

Pintos

Louzir

2007

2007 IEEE Antennas and Propagation Society International Symposium

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An USB key like digital Terrestrial TV receiver with built in antenna diversity is designed, realized and tested. It allows a free to air reception of Digital Terrestrial TV on a PC or a laptop. The housing of the compact receiver is used as part of antennas. The design is optimized to cover the whole UHF European frequency bandwidth (470MHz-862MHz) with good antenna efficiency taking into account the size and the form factor of the USB-key. The obtained results are compliant with simulations. A propagation study confirms the coverage improvement of this solution.

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