Results 71 to 80 of about 1,715,477 (307)

Beamforming in Two-Way Fixed Gain Amplify-and-Forward Relay Systems with CCI

open access: yes, 2012
We analyze the outage performance of a two-way fixed gain amplify-and-forward (AF) relay system with beamforming, arbitrary antenna correlation, and co-channel interference (CCI).
Duong, Trung Q.   +3 more
core   +1 more source

Outage probability of a cooperative maximum ratio transmission

open access: yes2014 22nd Signal Processing and Communications Applications Conference (SIU), 2014
In this paper, we present a cooperative communication system employing maximum ratio transmission technique and its outage probability performance over Rayleigh fading channels. Since maximum ratio transmission can achieve full diversity when used at tranmitters having multiple antennas while requiring no complexity increase at the receiver, the ...
Erdoğan, Eylem   +2 more
openaire   +4 more sources

Full Duplex AF and DF Relaying Under Channel Estimation Errors for V2V Communications

open access: yesIEEE Access, 2018
In this paper, we investigate the outage performance of full-duplex (FD) and half-duplex (HD) vehicle to vehicle (V2V) networks. We consider two vehicular communication scenarios with the assistance of roadside unit (RSU), i.e., RSU-to-vehicle-to-vehicle
Siye Wang, Dandi Wang, Chao Li, Wenbo Xu
doaj   +1 more source

Space-Time Signal Design for Multilevel Polar Coding in Slow Fading Broadcast Channels

open access: yes, 2019
Slow fading broadcast channels can model a wide range of applications in wireless networks. Due to delay requirements and the unavailability of the channel state information at the transmitter (CSIT), these channels for many applications are non-ergodic.
Jafarkhani, Hamid   +3 more
core   +1 more source

A Study on the Effect of Structural Compliance Placing in Soft Contact/Collision Properties of Multirotor Micro Aerial Vehicles

open access: yesAdvanced Intelligent Systems, EarlyView.
This article answers the question “Where is the best place to apply compliance in a multirotor micro aerial vehicle to make it more collision‐resilient?” by analyzing the output data of more than 1200 drone collision tests for four main configurations of micro‐quadcopters each possessing a unique softness layout of physical frame.
Amirali Abazari   +3 more
wiley   +1 more source

Noisy matrix completion for longitudinal data with subject‐ and time‐specific covariates

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In this article, we consider the imputation of missing responses in a longitudinal dataset via matrix completion. We propose a fixed‐effect, longitudinal, low‐rank model that incorporates both subject‐specific and time‐specific covariates. To solve the optimization problem, a two‐step optimization algorithm is proposed, which provides good ...
Zhaohan Sun, Yeying Zhu, Joel A. Dubin
wiley   +1 more source

Hybrid Cache Placement for Physical-Layer Security in Cooperative Networks

open access: yesIEEE Access, 2018
Due to the broadcast nature of wireless transmission, traditional wireless two-hop relaying is vulnerable for eavesdroppers to overhear messages. In order to enhance the physical-layer security, this paper studies one cooperative network with caching ...
Fang Shi   +5 more
doaj   +1 more source

Outage Minimization of Energy Harvesting-Based Relay-Assisted Random Underlay Cognitive Radio Networks With Interference Cancellation

open access: yesIEEE Access, 2021
This paper incorporates interference cancellation in the outage analysis of a wireless energy harvesting cognitive relay network. Based on an interference threshold, primary receivers are assumed to be able to cancel a fraction of the strongest ...
Oluwatosin Ahmed Amodu   +3 more
doaj   +1 more source

Techno‐Economic Evaluation of Wind and Bio‐Energy Systems for Sustainable Development: A Systematic Review

open access: yesEnergy Science &Engineering, EarlyView.
The stand‐alone renewable energy considered in the review is capable of addressing the problem associated with rural electrification. Government and stakeholder support is necessary to facilitate and improve wind power and bioenergy system development. This review investigates stand‐alone bioenergy and wind energy for sustainable development.
KeChrist Obileke, Patrick Mukumba
wiley   +1 more source

Outage Probability of Dual-Hop Selective AF With Randomly Distributed and Fixed Interferers

open access: yes, 2014
The outage probability performance of a dual-hop amplify-and-forward selective relaying system with global relay selection is analyzed for Nakagami-$m$ fading channels in the presence of multiple interferers at both the relays and the destination.
Chen, Yunfei   +2 more
core   +3 more sources

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