Results 101 to 110 of about 184,691 (254)
Modulation-mode and power-assignment for SVD-assisted downlink multiuser MIMO systems
, 2010 Multiuser multiple-input multiple-output (MIMO) downlink (DL) transmission schemes experience both multiuser interference as well as inter-antenna interference.
Ahrens, Andreas, Benavente Peces, César
core
, 2015 In this paper, we study the resource allocation algorithm design for downlink multicarrier transmission with a shared user equipment (UE)-side distributed antenna system (SUDAS) which utilizes both licensed and unlicensed frequency bands for improving ...
Breiling, Marco +4 more
core +1 more source
3D Geometry Modeling Method for MIMO Communication Systems Using Correlation Coefficients
Journal of Computer Networks and Communications, Volume 2025, Issue 1, 2025.Channel models are the basis of system design, theoretical analysis, performance evaluation, optimization, and deployment of communication systems in wireless fading environments. LTE, a global standard for high‐speed data transmission, relies on channel modeling techniques due to its multiple‐input multiple‐output (MIMO) architecture. In MIMO systems,
Hassan Abdollahpour +3 more
wiley +1 more source
EURASIP Journal on Wireless Communications and Networking, 2011 A relatively recent idea of extending the benefits of MIMO systems to multiuser scenarios seems promising in the context of achieving high data rates envisioned for future cellular standards after 3G (3rd Generation).
Kovács IstvánZ +10 more
doaj
Performance Analysis of SVD-assisted Downlink Multiuser MIMO Systems
, 2010 Multiuser multiple-input multiple-output (MIMO) downlink (DL) transmission schemes experience both multiuser interference as well as inter-antenna interference.
Ahrens, Andreas +2 more
core
, 2013 Block diagonalization (BD) based precoding techniques are well-known linear transmit strategies for multiuser MIMO (MU-MIMO) systems. By employing BD-type precoding algorithms at the transmit side, the MU-MIMO broadcast channel is decomposed into ...
de Lamare, R. C., Haardt, M., Zu, K.
core +1 more source
Sparse Array for Beamforming in Wireless Communication Systems
Journal of Engineering, Volume 2025, Issue 1, 2025.The usefulness of smart antennas lies in enhancing the received signal from a particular direction while suppressing unwanted interfering signals and noise from other directions. This process is known as beamforming. In this paper, we study beamforming using different antenna array geometries to improve performance.
Oscar Ossa-Molina +3 more
wiley +1 more source
Transmission Scheme with Limited Channel State Information Feedback for 3D MIMO System
International Journal of Antennas and Propagation, 2015 Three-dimensional (3D) multiple-input multiple-output (MIMO) system can exploit the spatial degree of freedom in vertical dimension and can significantly improve system performance compared with 2D transmission scheme.
Xing Li +4 more
doaj +1 more source
Multi-Objective Optimization for Power Efficient Full-Duplex Wireless Communication Systems
, 2015 In this paper, we investigate power efficient resource allocation algorithm design for multiuser wireless communication systems employing a full-duplex (FD) radio base station for serving multiple half-duplex (HD) downlink and uplink users simultaneously.
Ng, Derrick Wing Kwan +2 more
core +1 more source
Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.This research paper proposes three joint transmit and receive (TX/RX) beamforming schemes for minimizing the bit error rates of next‐generation wireless sensor networks. Based on minimizing the optimization problem of the total mean squared error between the transmitted and received data symbols, the first beamforming scheme is proposed.
Mohamed S. Abouzeid +4 more
wiley +1 more source