Results 121 to 130 of about 4,370 (213)

Robust Wideband Beamforming by the Hybrid Steepest Descent Method

open access: yesIEEE Transactions on Signal Processing, 2007
This paper uses the hybrid steepest descent method (HSDM) to design robust smart antennas. Several design criteria as well as robustness are mathematically described by a finite collection of closed convex sets in a real Euclidean space. Desirable beamformers are defined as points of the generalized convex feasible set which is well defined even in the
Konstantinos Slavakis, Isao Yamada
openaire   +2 more sources

Hybrid digital and analog beamforming design using genetic algorithms

open access: yes
Hybrid analog and digital beamforming is gaining attention for its practical application in large-scale antenna systems. It offers significant cost savings, reduced complexity, and lower power consumption compared to entirely digital beamforming, all ...
Bahri, Sidi Mohammed   +1 more
core   +1 more source

On a Hybrid Beamforming/Space-Time Coding Scheme

open access: yes, 2008
—A multiple transmit antenna system based on hybrid beamforming and space-time coding technologies is examined. The reduction factor of the required transmitted energy achievable by the use of hybrid scheme is quantified for any given outage capacity. We
H. C. So, Linrang Zhang, Li Ping
core  

Generalized Inverse Beamforming Investigation and Hybrid Estimation

open access: yes, 2010
Conventional beamforming, among the several techniques that can be used for noise source localization, has been widely used in complex problems, including aeroacoustics applications.
Zavala, Paulo Alexandre   +5 more
core  

Reconfigurable Intelligent Surface Aided Hybrid Beamforming: Optimal Placement and Beamforming Design

open access: yesIEEE Transactions on Wireless Communications
This manuscript contains 18 pages and 9 ...
Najam Us Saqib   +3 more
openaire   +2 more sources

Hybrid MVDR-LMS beamforming for Massive MIMO

open access: yes, 2019
With the high speed of communication in LTE-5G, fast beamforming techniques need to be adopted. The training time required to form and steer the main lobes toward 5G multiple users must be short.
M. Tabra, Yasmine, Sabbar, Bayan
core   +1 more source

Secure Beamforming Design for IRS-ISAC Systems With a Hardware-Efficient Hybrid Beamforming Architecture

open access: yesIEEE Transactions on Vehicular Technology
In this paper, we employ a hardware-efficient hybrid beamforming (HB) architecture to achieve balanced performance in an intelligent reflecting surface (IRS)-assisted integrated sensing and communication (ISAC) system. We consider a scenario where a multi-antenna, dual-function base station (BS) performs secure beamforming for a multi-antenna ...
Weijie Xiong   +4 more
openaire   +2 more sources

Hybrid digital and analog beamforming design for large-scale MIMO systems

open access: yes, 2015
systems enable high spectral efficiency by employing large antenna arrays at both the transmitter and the receiver of a wireless communication link.
Foad Sohrabi, Wei Yu
core   +1 more source

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