Results 101 to 110 of about 103,779 (270)
Efficient Design for Multi-user Downlink Beamforming with Reconfigurable Intelligent Surface [PDF]
arXiv, 2023 This paper considers downlink multi-user transmission facilitated by a reconfigurable intelligent surface (RIS). First, focusing on the multi-group multicast beamforming scenario, we develop a fast and scalable algorithm for the joint base station (BS) and RIS beamforming optimization to minimize the transmit power subject to the user quality-of ...
arxiv
Beamforming for MISO Interference Channels with QoS and RF Energy Transfer [PDF]
S. Timotheou, I. Krikidis, G. Zheng, and B. Ottersten,
"Beamforming for MISO Interference Channels with QoS and RF Energy Transfer,"
IEEE Transactions on Wireless Communications, vol.13, no.5, pp.2646--2658,
May 2014, 2013 We consider a multiuser multiple-input single-output interference channel where the receivers are characterized by both quality-of-service (QoS) and radio-frequency (RF) energy harvesting (EH) constraints. We consider the power splitting RF-EH technique where each receiver divides the received signal into two parts a) for information decoding and b ...
arxiv +1 more source
Cognitive Beamforming for Multiple Secondary Data Streams With Individual SNR Constraints
, 2013 In this paper, we consider cognitive beamforming for multiple secondary data streams subject to individual signal-to-noise ratio (SNR) requirements for each secondary data stream.
Cai, Sheng-Ming, Gong, Yi
core +1 more source
Channel charting based beamforming
2022 56th Asilomar Conference on Signals, Systems, and Computers, 2022 Asilomar Conference on Signals, Systems, and Computers, Oct 2022, Pacific Grove, United ...
Magoarou, Luc Le +3 more
openaire +4 more sources
Low Complexity and Robust Codebook-Based Analog Beamforming for Millimeter Wave MIMO Systems
IEEE Access, 2017 Millimeter-wave (mm-Wave) MIMO systems have been proposed to achieve higher spectral efficiency via the hybrid beamforming structure, which consists of analog beamforming and digital beamforming.
Yong Niu +5 more
doaj +1 more source
Preliminary Results on 3D Channel Modeling: From Theory to Standardization
, 2014 Three dimensional beamforming (3D) (also elevation beamforming) is now gaining a growing interest among researchers in wireless communication. The reason can be attributed to its potential to enable a variety of strategies like sector or user specific ...
Altman, Zwi +4 more
core +2 more sources
Laser &Photonics Reviews, EarlyView.Fully exploiting the broad untapped terahertz spectrum necessitates extending the bandwidth of practical guided‐wave systems. This work introduces a substrateless quasi‐optical integration platform to meet this need. Classical optical principles going back to the time of Michelson are adapted to a planar, micro‐machined, monolithic‐silicon platform ...
Daniel Headland +4 more
wiley +1 more source
Angular Beamforming Technique for MIMO Beamforming System
International Journal of Antennas and Propagation, 2012 The method of MIMO beamforming has gained a lot of attention. The eigen beamforming (EB) technique provides the best performance but requiring full channel information. However, it is impossible to fully acquire the channel in a real fading environment.
Apinya Innok +2 more
doaj +1 more source
REEL-BF Design: Achieving the SDP Bound for Downlink Beamforming with Arbitrary Shaping Constraints
, 2017 This paper considers the beamforming design for a multiuser multiple-input single-output (MISO) downlink with an arbitrary number of (context-specific) shaping constraints.
Gao, Xiqi +4 more
core +1 more source
A 5G NR FR2 Beamforming System with Integrated Transceiver Module
SensorsThis paper presents a 5G new radio (NR) FR2 beamforming system with an integrated transceiver module. A real-time operating module providing enhanced flexibility and capability has been proposed.
Ayush Bhatta +3 more
doaj +1 more source