Results 91 to 100 of about 1,754 (179)

On the Ergodic Capacity for SIM-Aided Holographic MIMO Communications

open access: yesIEEE Wireless Communications Letters
We derive a novel closed-form lower bound on the ergodic capacity of holographic multiple-input multiple-output (HMIMO) systems enhanced by stacked intelligent metasurfaces (SIMs) under Rayleigh fading conditions. The proposed expression is valid for systems with a finite number of antennas and SIM elements and exhibits tightness throughout the whole ...
Anastasios K. Papazafeiropoulos   +3 more
openaire   +2 more sources

On the Reliability and Spectral Efficiency of Multi-antenna AF Relay-aided NOMA Networks

open access: yesJordanian Journal of Computers and Information Technology
This paper investigates a downlink cooperative non-orthogonal multiple access (NOMA) system assisted by a multi-antenna amplify-and-forward (AF) relay.
Nhu Hong Nguyen   +3 more
doaj   +1 more source

Ergodic Capacity for the SIMO Nakagami- Channel

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
This paper presents closed-form expressions for the ergodic channel capacity of SIMO (single-input and multiple output) wireless systems operating in a Nakagami- fading channel.
Vagenas EfstathiosD   +2 more
doaj  

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