Results 231 to 240 of about 2,043,803 (299)
Random phase modulation in load modulated arrays
2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2017 Load modulated arrays (LMAs) are gaining research attention as an attractive transmitter architecture for multiple-input multiple-output (MIMO) systems. A key advantage of LMAs is that they eliminate the need for RF chains at the transmitter (consisting of DACs, mixers, filters) and use only one central power amplifier for any number of antenna ...
Sandeep Bhat, A. Chockalingam
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Load Modulated Arrays Using Channel Modulation with RF Mirrors
2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), 2019 Multiantenna transmission using load modulated arrays (LMAs) is gaining recent research interest. LMAs use a single central power amplifier and tune the antenna loads according to the information signal. In this paper, we propose a novel multiantenna transmitter architecture that can enable high-rate transmissions using LMAs.
Sandeep Bhat, A. Chockalingam
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2014 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2014
We propose a new hardware architecture for cost-and size-effective implementation of massive MIMO transmitters based on load modulation that is fully compatible with standard receiver architectures. With load modulation, a massive MIMO transmitter can be driven by a single power amplifier operating at constant envelope.
Ralf R. Müller +2 more
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We propose a new hardware architecture for cost-and size-effective implementation of massive MIMO transmitters based on load modulation that is fully compatible with standard receiver architectures. With load modulation, a massive MIMO transmitter can be driven by a single power amplifier operating at constant envelope.
Ralf R. Müller +2 more
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LSE Precoder for Load Modulated Arrays With Channel Modulation
IEEE Wireless Communications Letters, 2020In this letter, we consider novel multiuser precoding techniques suited for load modulated arrays (LMAs) on the downlink, wherein a base station employs an LMA to transmit data to multiple users. For implementation simplicity, it is desired that the antenna load impedance values in the LMA are drawn from a discrete set.
Sandeep Bhat, A. Chockalingam
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Load Modulation of Harmonically Tuned Amplifiers and Application to Outphasing Systems [PDF]
IEEE Transactions on Microwave Theory and Techniques, 2017 Modulation of load impedance is an effective way to maintain efficient power amplifier (PA) operation over high dynamic range modulated signals. For high efficiency, a load modulation approach can be applied to inherently efficient classes of PAs such as
Taylor Wallis Barton +2 more
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Blast Loads for Offshore Modules
Offshore Technology Conference, 1991ABSTRACT This paper discusses the methods by which the overpressures created by a hydrocarbon explosion within a congested offshore module may be calculated. The nature of the results obtained from numerical simulation are discussed leading to an approach by which a structural loading suitable for use in a linear ...
R.B. Corr, R. Snell, V. Tam, S. Simmonds
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Module of Additional Orthogonal Load
2020Based on the slip model in the setting of M. Ya. Leonov, the Cicala problem of the additional loading modulus is solved for the orthogonal break of the loading trajectory. The solution has shown that if we duly handle the model parameters, it is possible to eliminate the disadvantage of the Batdorf and Budiansky model revealed by Cicala.
Valentin Molotnikov +1 more
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