Results 41 to 50 of about 438 (174)
Confidential communications technique based on message block precoder in multi-user MIMO systems
Tongxin xuebao, 2012 For confidential communications in a multi-user MIMO wiretap channel,though no information regarding the illegitimate receiver was presumed at the transmitter,an artificial interference and a precoding technique based on message block were proposed ...
Yao ZHU +3 more
doaj +2 more sources
IEEE Access, 2020 For massive multiple-input multiple-output (MIMO) systems, linear precoding is preferable to nonlinear precoding for better performance-complexity trade-off.
Qian Deng +5 more
doaj +1 more source
Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.The integration of reconfigurable intelligent surfaces (RIS) into multiple‐input multiple‐output (MIMO) systems offers transformative potential for enhancing spectral efficiency and mitigating channel impairments. However, efficient and accurate channel estimation (CE) remains a critical challenge due to multipath propagation, high dimensionality, and ...
Kevin M. Mwongera +3 more
wiley +1 more source
Performance Analysis of Precoding Based on Massive MIMO System
MATEC Web of Conferences, 2015 In order to improve the system performance, the authors consider a single-cell multiuser Massive MIMO downlink time-division duplex (TDD) system for the imperfect channel state information (CSI).
Li Yi, Wang Junxuan, Gao Zhenzhen
doaj +1 more source
Secrecy Analysis for MISO Broadcast Systems with Regularized Zero-Forcing Precoding
CoRR, 2023 There are some errors in Eq. (28) of Section IV regarding the convergence rate. The asymptotic regime does not hight the same increasing rate of dimensions, which is not totolly correct. The proof in Appendix C is not sufficient enough.
Zhang, Xin +2 more
openaire +2 more sources
Comparing GFDM With OFDM for Use in 6G Communication From a New Perspective
Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.The most important challenges facing 6G communication systems are the large amount of data and low latency as compared to previous generations. Therefore, it has become necessary to use advanced technologies to meet the requirements of 6G wireless communication systems.
Mohammed Azher Therib +2 more
wiley +1 more source
Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast
Sensors, 2021 In this paper, we use satellite-assisted and multi-group multicast mechanisms to relieve ground traffic pressure and improve data transmission efficiency of cell-free massive MIMO systems.
Jiamin Li +4 more
doaj +1 more source
Contemporary Accounting Research, Volume 42, Issue 4, Page 2714-2745, Winter 2025.Abstract In recent years, the Big 4 firms have embarked on digital transformation projects that have the potential to throw auditors' daily practice into turmoil. This study looks at the auditors' quest for professional security—namely, their confidence in the fundamental features of their profession.
Pier‐Luc Lajoie, Yves Gendron
wiley +1 more source
Low Complexity Hybrid Precoding for Broadband mmWave Massive MIMO Systems
Advances in Electrical and Computer Engineering, 2018 Hybrid precoding becomes a candidate for Millimeter wave (mmWave) massive MIMO (Multiple-Input and Multiple-Output) systems because it can extremely reduce power consumption and high costs.
HUANG, Y., LIU, C., SONG, Y.
doaj +1 more source
Partial zero-forcing precoding for the interference channel with partially cooperating transmitters [PDF]
2010 IEEE International Symposium on Information Theory, 2010 A communication model is considered in which the classic two-user Gaussian interference channel is augmented by noiseless rate-limited digital conferencing links between the transmitters. We propose a partial zero-forcing precoding strategy based on a shared-private rate splitting scheme at the transmitter, in which each transmitter communicates part ...
Siddarth Hari, Wei Yu 0001
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