Search Results - "Valenzuela, R.A."

Spatial Diversity in Radars-Models and Detection Performance by Fishler, E., Haimovich, A., Blum, R.S., Cimini, L.J., Chizhik, D., Valenzuela, R.A.

“…Inspired by recent advances in multiple-input multiple-output (MIMO) communications, this proposal introduces the statistical MIMO radar concept. To the…”
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Network coordination for spectrally efficient communications in cellular systems by Karakayali, M.K., Foschini, G.J., Valenzuela, R.A.

“…In this article we consider network coordination as a means to provide spectrally efficient communications in cellular downlink systems. When network…”
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Correlation analysis based on MIMO channel measurements in an indoor environment by Kyritsi, P., Cox, D.C., Valenzuela, R.A., Wolniansky, P.W.

“…Multiple-input-multiple-output (MIMO) systems have the potential to achieve very high capacities, depending on the propagation environment. Capacity increases…”
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Simplified processing for high spectral efficiency wireless communication employing multi-element arrays by Foschini, G.J., Golden, G.D., Valenzuela, R.A., Wolniansky, P.W.

“…We investigate robust wireless communication in high-scattering propagation environments using multi-element antenna arrays (MEAs) at both transmit and receive…”
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Keyholes, correlations, and capacities of multielement transmit and receive antennas by Chizhik, D., Foschini, G.J., Gans, M.J., Valenzuela, R.A.

“…Multielement system capacities are usually thought of as limited only by correlations between elements. It is shown here that degenerate channel phenomena…”
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Effect of antenna polarization on the capacity of a multiple element system in an indoor environment by Kyritsi, P., Cox, D.C., Valenzuela, R.A., Wolniansky, P.W.

“…We analyze the behavior of a multiple element antenna system in an indoor environment based on the measurements taken in the Lucent Bell Labs building in…”
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Multiple-input-multiple-output measurements and modeling in Manhattan by Chizhik, D., Ling, J., Wolniansky, P.W., Valenzuela, R.A., Costa, N., Huber, K.

“…Narrowband multiple-input-multiple-output (MIMO) measurements using 16 transmitters and 16 receivers at 2.11 GHz were carried out in Manhattan. High capacities…”
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Analysis and performance of some basic space-time architectures by Foschini, G.J., Chizhik, D., Gans, M.J., Papadias, C., Valenzuela, R.A.

“…In this paper, we discuss some of the most basic architectural superstructures for wireless links with multiple antennas: M at the transmit site and N at the…”
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Link-optimal space-time processing with multiple transmit and receive antennas by Farrokhi, F.R., Foschini, G.J., Lozano, A., Valenzuela, R.A.

“…Previous information theory results have demonstrated the enormous capacity potential of wireless communication systems with multiple transmit and receive…”
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Measurement and characterization of the temporal behavior of fixed wireless links by Ahumada, L., Feick, R., Valenzuela, R.A., Morales, C.

“…We analyze the methodology and present the interpretation of results obtained in the measurement of the temporal Ricean K-factor and the time-autocovariance…”
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Experimental results on the level crossing rate and average fade duration for urban fixed wireless channels by Feick, R., Valenzuela, R.A., Ahumada, L.

“…The temporal behavior of fixed wireless (FW) links is usually described in terms of fade depth distribution, level crossing rates and average fade duration…”
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Empirical comparison of MIMO and beamforming schemes for outdoor-indoor scenarios by Hermosilla, C., Valenzuela, R.A., Ahumada, L., Feick, R.

“…We present an empirically based comparative study of spectral efficiency for a variety of transmission systems applicable to a fixed or repositionable wireless…”
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The Effect of Unbalanced Branches on the Performance of Diversity Receivers for Urban Fixed Wireless Links by Valenzuela, R.A., Ahumada, L., Feick, R.

“…Diversity techniques can be very effective against fading. For fixed wireless terminals, antenna diversity increases spatial coverage by reducing the…”
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Peer-to-Peer MIMO Radio Channel Measurements in a Rural Area by Ling, J., Chizhik, D., Samardzija, D., Valenzuela, R.A.

“…The wireless communication channel between vehicular nodes in an ad-hoc network was assessed in a comprehensive measurement and modeling effort. Nodes were…”
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Measured Improvement of Indoor Coverage for Fixed Wireless Loops With Multiple Antenna Receivers by Ahumada, L., Feick, R., Valenzuela, R.A., Hermosilla, C.

“…We present measured gains of spatial and angular diversity receivers for fixed narrowband wireless links at 2.4 GHz, in scenarios where indoor service is…”
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Spectral efficiency of FDMA/TDMA wireless systems with transmit and receive antenna arrays by Farrokhi, F.R., Lozano, A., Foschini, G.J., Valenzuela, R.A.

“…The ever growing need for higher capacity in wireless systems has fueled the interest in exploiting the spatial dimension-through the use of antennas arrays-to…”
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Characterization of temporal fading in urban fixed wireless links by Ahumada, L., Feick, R., Valenzuela, R.A.

“…We study the temporal fluctuations of a fixed wireless link in an urban environment by characterizing the Ricean K-factor as a function of the positioning of…”
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Channel and capacity estimation errors by Kyritsi, P., Valenzuela, R.A., Cox, D.C.

“…Systems with multiple element transmitter and receiver arrays have been shown to achieve very high spectral efficiencies. The theoretically achievable Shannon…”
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Guest editorial - Advances in smart antennas by Lozano, A., Goldsmith, A., Valenzuela, R.A., Lagunas, M.A., Gesbert, D.

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Outdoor BLAST measurement system at 2.44 GHz: calibration and initial results by Gans, M.J., Amitay, N., Yeh, Y.S., Hao Xu, Damen, T.C., Valenzuela, R.A., Sizer, T., Storz, R., Taylor, D., MacDonald, W.M., Cuong Tran, Adamiecki, A.

“…There are ever increasing demands for additional capacity in wireless communications to handle voice, data, and wideband Internet applications. These demands…”
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