Πλοήγηση ανά Θέμα "Bit error rate"
Αποτελέσματα 1-16 από 16
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CDMA RoFSO Links with Nonzero Boresight Pointing Errors over M Turbulence Channels
(2018)Radio-on-Free-Space Optical systems constitute a very attractive option for interconnecting central base stations with remote antenna units. Nonetheless, the optical signal propagation through the atmosphere is tremendously ... -
Feedback-Based SSK Modulation: Constellation Design and Performance Results
(2020)In this article, we propose a limited feedback-based space-shift keying (SSK) modulation scheme where transmitter (Tx) obtains partial channel state information (CSI) via a feedback link from receiver (Rx). More specifically, ... -
FSO links with spatial diversity over strong atmospheric turbulence channels
(2008)Free-space optical (FSO) communication has received much attention in recent years as a cost-effective, license-free and wide-bandwidth access technique for high data rates applications. The performance of FSO communication, ... -
Illumination, data transmission, and energy harvesting: The threefold advantage of VLC
(2017)Visible light communication (VLC) is a promising technology that meets illumination and information transmission requirements in an indoor environment. Because light waves convey energy, a VLC link may exploit that fact ... -
Impact of a Randomly Placed Terminal on LiFi Performance
(2022)The ambitious goal of light-fidelity (LiFi) technology to provide seamless user mobility in indoor environments requires strong link connections to confront any stochasticity that possibly comes out. In this context, a ... -
Investigating 5G V2X QoS using turbo codes
(2021)3rd Generation Partnership Project (3GPP) 5th Generation (5G) Vehicle-to-Everything (V2X) implementation scenarios represent typical applications of the new forthcoming technology. Quality of service (QoS) in 5G V2X services ... -
Mixed THz/FSO Relaying Systems: Statistical Analysis and Performance Evaluation
(2022)In this paper, the performance of a mixed Terahertz/free-space optical (THz/FSO) wireless transmission system is studied, where the joint effects of channel fading and pointing errors are considered for both THz and FSO ... -
New results on turbulence modeling for free-space optical systems
(2010)In this paper, we propose a statistical channel model, named as Double-Weibull, to describe the irradiance fluctuations in moderate and strong turbulence for free-space optical (FSO) systems. The proposed stochastic model ... -
On the inverse-Gaussian shadowing
(2011)The Inverse Gaussian (IG) distribution has been recently proposed as a less complex alternative to the classical log-normal distribution to describe shadowing phenomena. This paper investigates the performance of digital ... -
Performance and Channel Modeling Optimization for Hovering UAV-Assisted FSO Links
(2022)Unmanned Aerial Vehicle (UAV)-assisted free-space optical (FSO) communication has become a promising solution in both civil and military applications. Nevertheless, hovering UAV-assisted FSO links suffer from several losses ... -
Performance of an Underwater Optical Wireless Link with a Randomly Placed or Moving Receiver
(2021)The current work investigates the outage probability of a vertical diffused line-of-sight underwater optical wireless communication link where a fixed transmitter at the sea surface communicates with a receiver floated ... -
Performance of free-space optical communications over a mixture composite irradiance channel
(2017)The performance of a typical free-space optical link using a recently proposed composite model for turbulence and pointing error effects is studied. This model offers analytical tractability in the statistical description ... -
Secrecy in wireless communication through closed-loop receiver de-synchronization
(2020)A subset of the synchronization algorithms in a wireless receiver are responsible for tracking the phase and frequency of a digitally modulated signal. If variations of the phase in the signal are substantial, then the ... -
A simple statistical model for turbulence-induced fading in free-space optical systems
(2010)In this paper, we propose the Inverse Gaussian (IG) distribution, as a less complex alternative to Log-normal (LN), to describe turbulence-induced fading in free-space optical (FSO) systems operating in weak turbulence ... -
Sub-Sampled Time Domain Sparse Information in Wired OFDM and STBC-OFDM Systems
(2022)A sub-sampling method developed for wired or wireless Orthogonal Frequency Division Multiplexing (OFDM) systems is presented. The proposed technique can be activated during the exchange of sparse data. The sub-sampling ... -
Α dual-hop equivalent structure of a generalised multi-hop free-space optics network
(2021)The performance of free-space optics links strongly depends on scintillation effects caused by the atmospheric turbulence appearance. A widely adopted way to counterbalance the expected deterioration due to scintillation ...