Results 21 to 30 of about 724 (180)
Cooperative Pilot Spoofing in MU-MIMO Systems [PDF]
IEEE Wireless Communications Letters, 2020 In this letter, we consider downlink transmission of a multiuser multiple-input multiple-output (MU-MIMO) system with zero-forcing (ZF) precoders in the presence of multiple attackers. We propose a cooperative pilot spoofing attack (CPSA), where the attackers collaboratively impair the channel estimations in the uplink channel training phase, aiming at
Hui-Ming Wang 0001, Shao-Di Wang
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Decentralized equalization for massive MU-MIMO on FPGA [PDF]
2017 51st Asilomar Conference on Signals, Systems, and Computers, 2017 2017 51st Asilomar Conference on Signals, Systems, and ...
Kaipeng Li 0003 +3 more
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EQSM-based multiuser MIMO downlink transmission for correlated fading channels
EURASIP Journal on Wireless Communications and Networking, 2020 This paper presents three multiuser multiple input-multiple output (MU-MIMO) downlink transmission strategies based on the extended quadrature spatial modulation (EQSM) system for mobile communication.
Francisco R. Castillo-Soria +4 more
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Joint Power Allocation and Scheduling Techniques for BER Minimization in Multiuser MIMO Systems
IEEE Access, 2021 In contrast to the 4G LTE, one of the key requirements of 5G and beyond networks is ultra-high reliability. Towards this end, we investigate the problem of scheduling with joint power allocation for multi-user multiple-input multiple-output (MU-MIMO ...
Kyeongjun Ko +3 more
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Joint interference alignment and power allocation for NOMA-based multi-user MIMO systems
EURASIP Journal on Wireless Communications and Networking, 2018 Interference alignment (IA) and non-orthogonal multiple access (NOMA) are key technologies for achieving the capacity scaling required by next generation networks to overcome the unprecedented growth of data network traffic.
Mohamed Rihan, Lei Huang, Peichang Zhang
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Sum‐rate optimization scheme for time‐varying distributed MU‐MIMO systems
IET Communications, 2021 Sum‐rate optimization problem is a key issue in a time‐varying multi‐user multi‐input multi‐output (MU‐MIMO) distributed antenna system. Channel precoding matrix is the key technology in the achievable sum‐rate optimization problem.
Shaoguo Xie, Liefu Ai
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Precoding for RIS-Assisted Multi-User MIMO-DQSM Transmission Systems
Future Internet, 2023 This paper presents two precoding techniques for a reconfigurable intelligent surface (RIS)-assisted multi-user (MU) multiple-input multiple-output (MIMO) double quadrature spatial modulation (DQSM) downlink transmission system.
Francisco R. Castillo-Soria +5 more
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Capacity Optimal Coded Generalized MU-MIMO
2022 IEEE International Symposium on Information Theory (ISIT), 2022 With the complication of future communication scenarios, most conventional signal processing technologies of multi-user multiple-input multiple-output (MU-MIMO) become unreliable, which are designed based on ideal assumptions, such as Gaussian signaling and independent identically distributed (IID) channel matrices.
Yuhao Chi +5 more
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Mode Switching for the Multi-Antenna Broadcast Channel Based on Delay and Channel Quantization
EURASIP Journal on Advances in Signal Processing, 2009 Imperfect channel state information degrades the performance of multiple-input multiple-output (MIMO) communications; its effects on single-user (SU) and multiuser (MU) MIMO transmissions are quite different.
Jun Zhang +3 more
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IEEE Access, 2022 In this paper, a design and implementation of fixed-complexity sphere decoder (FSD) combined with interference mitigation algorithm for downlink (DL) multiuser (MU) multiple-input multiple-output (MIMO) system is presented.
Minjoon Kim
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