Results 241 to 250 of about 14,391 (289)

A comprehensive comparison between Terahertz and optical wireless communications. [PDF]

open access: yesNPJ Wirel Technol
Liu M   +4 more
europepmc   +1 more source

Outage Performance Analysis of Vertical Underwater VLC Links

open access: yes2022 30th Signal Processing and Communications Applications Conference (SIU), 2022
In this paper, we investigate the outage performance of vertical stratified underwater optical links in the presence of moderate/strong turbulence conditions. Specifically, we consider the cascaded Gamma-Gamma turbulence channel model and derive a closed-form expression for outage probability.
Elamassie, Mohammed, Uysal, Murat
openaire   +3 more sources

Conditional outage performance analysis framework for OFDM channels

open access: yes2013 IEEE International Conference on Communications (ICC), 2013
The channel state information at the transmitter side (CSIT) is playing a more and more important role in the design of OFDM/OFDMA communication systems. Unfortunately, it is not trivial to conduct a performance analysis of OFDM systems with partial CSIT.
Bo Bob Bai   +3 more
openaire   +2 more sources

Secrecy Outage Performance of a Cooperative Cognitive Relay Network

IEEE Communications Letters, 2017
In this letter, we analyze the physical layer secrecy performance of a two-hop cooperative cognitive underlay relay network with a decode and forward relay and a passive eavesdropper. Unlike other works to date, we assume combining of direct and relayed signals at the destination and the eavesdropper.
Pratik Chakraborty, Shankar Prakriya
exaly   +2 more sources

Outage Performance of Cooperative NOMA Networks with Hardware Impairments

open access: yes2018 IEEE Global Communications Conference (GLOBECOM), 2018
We investigate the outage performance of cooperative non-orthogonal multiple access (NOMA) networks with transceiver hardware impairments, where the estimated channel state information and α-μ fading channels are considered. Closed-form expressions for the outage probability of cooperative NOMA networks are derived for two representative ...
Xingwang Li 0001   +4 more
openaire   +2 more sources

Outage performance of FSO multi-hop parallel relaying

open access: yes2012 20th Signal Processing and Communications Applications Conference (SIU), 2012
In this paper, we investigate the outage performance of relay-assisted free-space optical (FSO) networks which build upon the combinations of serial and parallel relaying. We assume log-normal atmospheric turbulence channels and derive outage probability expressions for multi-hop parallel relaying scheme under consideration.
Mohammadreza A. Kashani, Murat Uysal
openaire   +3 more sources

Outage Performance with Handover Triggering in Cellular Mobile Networks

open access: yesWireless Personal Communications, 2001
An approach to performance evaluation of cellular mobile networks is proposed, which includes the behavior of handover algorithms in the computation of outage probability. In a general system scenario, with a central cluster and interfering base stations, the average outage probability is computed along a trip of the mobile terminal that involves ...
GRAZIOSI, FABIO   +3 more
openaire   +2 more sources

Outage Performance of Underlay Multihop Cognitive Relay Networks With Energy Harvesting

open access: yesIEEE Communications Letters, 2016
This letter studies the outage performance of multihop cognitive relay networks with energy harvesting in underlay paradigms, wherein the secondary users are powered by a dedicated power beacon (PB) and their transmit powers are subject to the harvested ...
Chi Xu, Meng Zheng, Haibin Yu
exaly   +1 more source

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