Results 251 to 260 of about 23,082 (299)

Structure of giant kelp Photosystem I-FCP uncovers drivers of antenna evolution across the red lineage. [PDF]

open access: yesNat Commun
Weissman JD   +7 more
europepmc   +1 more source

A hierarchical, compact and efficient phenanthrene supramolecular polymer light harvesting antenna.

open access: yesJ Mater Chem C Mater
Brisse R   +5 more
europepmc   +1 more source

Antenna selection in MIMO systems

IEEE Communications Magazine, 2004
Multiple-antenna systems, also known as multiple-input multiple-output radio, can improve the capacity and reliability of radio communication. However, the multiple RF chains associated with multiple antennas are costly in terms of size, power, and hardware. Antenna selection is a low-cost low-complexity alternative to capture many of the advantages of
Aria Nosratinia
exaly   +2 more sources

On optimum MIMO with antenna selection

IEEE Communications Letters, 2002
Wireless communication systems with transmit and receive antenna arrays are studied when antenna selection is used. A case with very limited feedback of information from the receiver to the transmitter is considered, where the only information fed back is the selected subset of transmit antennas to be employed.
R S Blum, J H Winters
exaly   +2 more sources

Massive MIMO Antenna Selection: Switching Architectures, Capacity Bounds, and Optimal Antenna Selection Algorithms

IEEE Transactions on Signal Processing, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuan Gao
exaly   +4 more sources

Joint Relay-and-Antenna Selection in Multi-Antenna Relay Networks

IEEE Transactions on Communications, 2010
For the decode-and-forward protocol in relay networks, opportunistic relaying (OR) and selection cooperation (SC) are two major relay selection schemes, which have been studied only for single antenna terminals. We study OR and SC in a multi-antenna relay network where each terminal has multiple antennas.
Minchul Ju   +2 more
exaly   +2 more sources

On the Efficacy of Antenna Selection at the Massive Antenna Jammer

2020 International Conference on Signal Processing and Communications (SPCOM), 2020
We investigate the efficacy of antenna selection (AS) at ajammer with a massive number of antennas in deteriorating the sum downlink (DL) spectral efficiency (SE) of a legitimate massive MIMO system. To this end, we analyze the DL sum SE of a massive MIMO system when the legitimate base station (BS) uses zero-forcing (ZF) precoding while the jammer ...
Deepak Rathore, Salil Kashyap, A. Rajesh
openaire   +1 more source

Base Station Antenna Selection for Low-Resolution ADC Systems

open access: yesIEEE Transactions on Communications, 2020
For low-resolution analog-to-digital converter (ADC) systems, only high-complexity receive antenna selection has been developed and transmit antenna selection has been limited to a single antenna selection in prior work.
Junil Choi, Junmo Sung
exaly   +2 more sources

Multicast beamforming with antenna selection

2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2012
Multicast beamforming exploits subscriber channel state information at the base station to form multiple beams that steer radiated power towards users of interest, while minimizing leakage to other users and systems. Such functionality has been provisioned in the long-term evolution (LTE) enhanced multimedia broadcast multicast service (EMBMS). In this
Omar Mehanna   +2 more
openaire   +1 more source

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