Results 11 to 20 of about 824 (179)

Transmitter Layering for Multiuser MIMO Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
A novel structure for multiple antenna transmissions utilizing space-time dispersion is proposed, where the original data stream is divided into K substreams which are modulated onto all available transmit antennas using stream-specific transmit ...
Zachary Bagley   +2 more
doaj   +3 more sources

Time-Division Multiuser MIMO with Statistical Feedback [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
This paper investigates a time-division multiuser multiple-input multiple-output (MIMO) antenna system in K-block flat fading where users are given individual outage rate probability constraints and only one user accesses the channel at any given time ...
Jia Chen, Kai-Kit Wong
doaj   +2 more sources

Multiuser Detection for Nonlinear MIMO Uplink [PDF]

open access: yesIEEE Transactions on Communications, 2020
For the multiple-input multiple-output (MIMO) uplink employing high-order quadrature amplitude modulation (QAM) signaling and with nonlinear high power amplifiers (HPAs) at mobile users’ transmitters, the existing multiuser detection methods can no longer be applied. We propose a novel nonlinear multiuser detection scheme for the nonlinear MIMO uplink.
Sheng Chen 0001   +4 more
openaire   +3 more sources

Joint Transmit Beamforming for Multiuser MIMO Communications and MIMO Radar [PDF]

open access: yesIEEE Transactions on Signal Processing, 2020
Future wireless communication systems are expected to explore spectral bands typically used by radar systems, in order to overcome spectrum congestion of traditional communication bands. Since in many applications radar and communication share the same platform, spectrum sharing can be facilitated by joint design as dual function radar-communications ...
Xiang Liu 0022   +5 more
openaire   +3 more sources

Rate Balancing for Multiuser MIMO Systems [PDF]

open access: yes2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2019
We investigate and solve the rate balancing problem in the downlink for a multiuser Multiple-Input-Multiple-Output (MIMO) system. In particular, we adopt a transceiver structure to maximize the worst-case rate of the user while satisfying a total transmit power constraint.
Imène Ghamnia   +2 more
openaire   +2 more sources

Exploiting Opportunistic Multiuser Detection in Decentralized Multiuser MIMO Systems [PDF]

open access: yesGLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009
This paper studies the design of a decentralized multiuser multi-antenna (MIMO) system for spectrum sharing over a fixed narrow band, where the coexisting users independently update their transmit covariance matrices for individual transmit-rate maximization via an iterative manner.
Rui Zhang 0006, John M. Cioffi
openaire   +3 more sources

Recent advances in multiuser MIMO systems [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
We would like to welcome you to the Special Issue on Recent Advances in Multiuser MIMO Systems of the EURASIP Journal on Wireless Communications and Networking (JWCN). This issue has collected several research results on various aspects of multiuser MIMO systems including resource allocation, precoding and detection algorithms, limited feedback ...
Rodrigo C. de Lamare   +4 more
openaire   +2 more sources

Multiuser Space–Time Line Code With Optimal and Suboptimal Power Allocation Methods

open access: yesIEEE Access, 2018
In this paper, a multiuser space-time line code (STLC) system is proposed. In the proposed multiuser STLC system, a zero-forcing (ZF)-based precoder decomposes multiuser multiple-input multiple-output (MIMO) channels into multiple single-user MIMO ...
Jingon Joung, Eui-Rim Jeong
doaj   +1 more source

Multiuser MIMO systems and interference avoidance [PDF]

open access: yes2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2004
We present the application of interference avoidance methods to multiuser systems with multiple inputs and multiple outputs. A general signal space formulation is used which makes the approach applicable to any MIMO system model regardless of the choice of basis functions.
Dimitrie C. Popescu, Christopher Rose
openaire   +1 more source

Progressive Refinement of Beamforming Vectors for High-Resolution Limited Feedback

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
Limited feedback enables the practical use of channel state information in multiuser multiple-input multiple-output (MIMO) wireless communication systems.
Robert W. Heath   +2 more
doaj   +1 more source

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