Results 21 to 30 of about 13,163 (253)

Reverse Link Outage Probabilities of Multicarrier CDMA Systems with Beamforming in the Presence of Carrier Frequency Offset

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
The outage probability of reverse link multicarrier (MC) code-division multiple access (CDMA) systems with beamforming in the presence of carrier frequency offset (CFO) is studied. A conventional uniform linear array (ULA) beamformer is utilized.
Xiaoyu Hu, Yu-Dong Yao
doaj   +1 more source

Performance analysis of physical layer security based on channel correlation

open access: yesTongxin xuebao, 2021
In view of the correlation of the main and eavesdropper’s channels in physical layer security, the impact of channel correlation on the secrecy performance was studied, the exact form ulations of ergodic secrecy capacity and secrecy outage probability ...
Xuanli WU   +3 more
doaj   +2 more sources

Effect of Mobile Wireless on Outage and BER Performances Over Rician Fading Channel

open access: yesIEEE Access, 2020
Many researchers have analyzed the outage probability of wireless static networks over the Rician fading channel in recent years. However, few researchers consider the mobile wireless network models over the Rician fading channel environment.
Chunxiao Li   +4 more
doaj   +1 more source

Optimum Power Randomization for the Minimization of Outage Probability [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2013
The optimum power randomization problem is studied to minimize outage probability in flat block-fading Gaussian channels under an average transmit power constraint and in the presence of channel distribution information at the transmitter. When the probability density function of the channel power gain is continuously differentiable with a finite ...
Berkan Dulek   +3 more
openaire   +3 more sources

A Power Control Algorithm Based on Outage Probability Awareness in Vehicular Ad Hoc Networks

open access: yesAdvances in Multimedia, 2018
This paper addresses the problem of adaptive power control based on outage probability minimization in Vehicular Ad Hoc Networks (VANETs), called a Power Control Algorithm Based on Outage Probability Awareness (PC-OPA). Unlike most of the existing works,
Xintong Wu   +5 more
doaj   +1 more source

Research on Outage Performance Optimization of Cognitive Relay Network with Cooperative Sensing

open access: yesJournal of Computing and Information Technology, 2016
In this work, cooperative spectrum sensing technology is applied to optimize the outage probability of cognitive relay networks. The outage performance optimization problem of cognitive relay networks is resolved by designing the sensing time and fusion ...
Yaolian Song   +3 more
doaj   +1 more source

Multihop Diversity for Fading Mitigation in Multihop Wireless Networks [PDF]

open access: yes, 2011
The concept of multihop diversity is proposed, where all the nodes of a multihop link are assumed to have buffers for temporarily storing their received packets.
Yang, Lie-Liang   +5 more
core   +1 more source

On the performance of mixed triple-hop FSO/RF/VLC relay system

open access: yes上海师范大学学报. 自然科学版, 2020
In this paper, a three-hop hybrid free space optical(FSO) communication/radio frequency (RF)/visible light communication (VLC) relay communication system was proposed and the outage probability performance of the proposed systemwas analyzed.Gamma-gamma ...
JIA Nannan   +5 more
doaj   +1 more source

3D Beamforming for Security of UAV Communications [PDF]

open access: yesHangkong bingqi, 2021
To enhance the security of unmanned aerial vehicle (UAV) communication system with delayed channel state information (CSI), two physical layer security schemes based on 3D beamforming are propsed, namely destination-specific (DS) scheme and eavesdropper ...
Wang Changlong,Yuan Quansheng,Hu Yongjiang
doaj   +1 more source

The Partial Power Control Algorithm of Underwater Acoustic Sensor Networks Based on Outage Probability Minimization

open access: yesInternational Journal of Distributed Sensor Networks, 2016
The high outage probability of an underwater wireless sensor may lead to high energy consumption. How to reduce the outage probability should be considered for underwater acoustic sensor networks (UASNs), where battery change is very difficult.
Yun Li   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy