HOME / Uplink and downlink symmetrical optical modules - Estlas Command & Optical Systems
In this study, we analyze the effect of adaptive optics corrections on the performance of an aeronautical free-space optical (FSO) system with bidirectional slant path uplink and downlink
In this work, we focus on indoor successive interference cancellation detection of optical uplink NOMA based on a fluorescent concentrator and
PON network accesses multiple users at the same time through a single optical fiber to achieve point-to-multipoint (P2MP) transmission
Moreover, polarization multiplexing technology is introduced to expo-nentially increase the transmission capacity of downlink signals. This scheme not only can be compatible with traditional optical fiber
The proposed system includes two VLC links: a low-speed downlink and a high-speed uplink using an image sensor (IS) and photodiode detection (PD) based receivers.
For free-space optical communication (FSOC) link between an optical ground sta- tion (OGS) and a satellite such as geostationary (GEO), low Earth (LEO), small, or even microsatellite in lower
Explore the ultimate guide to optical modules. Learn types, functions, performance metrics & how to choose the right module for your fiber
Investing in high-quality components such as SFP modules, optics transceivers, and robust cabling can significantly enhance the performance and reliability of both uplink and downlink
In this article, learn how optical technologies are transforming high-speed communication across deep space missions.
The optical module leverages advanced optical transceiving components and the optimized DSP algorithm to support a 32 dB optical power
In uplink, well-known effects by the atmosphere give much larger penalties, resulting in ~1.8 kb/s bit rate. This is a key challenge for more symmetrical communications, e.g. those needed by humans or robots.
However, this is achievable only by using both a 5-meter receiving telescope and a sophisticated detection system, only in downlink to Earth. In uplink, well-known effects by the atmosphere give
The asymmetry of optical uplink and downlink is researched in this work, with various system configurations considered. Numerical results reveal the difference.
We demonstrate a cost-effective, 10-Gb/s full-duplex wavelength-division-multiplexed passive optical network over 20 km single-feeder fiber using a single light source per optical network
Discover key PON module parameters for selecting the best GPON and EPON modules. Understand their impact on network performance and
Unlike previous studies limited to downlink analysis, our scheme applies to both downlink and uplink and is evaluated using link-level simulations. These simulations reflect practical signal processing,
Asymmetric vs. symmetric communications Consider an internet connection, in which downstream data from an internet server to the subscriber
This paper presents a brief overview of fundamental downlink and uplink NOMA performance. Successive interference cancellation is demonstrated well by consid-ering three-user networks.
The implementation of this technology relies on a critical hardware component: XGSPON optical modules. Acting as “translators” for optical signals,
In this paper, we have been successfully designed and demonstrated a novel 100Gbit/s full duplex FSO broadband wireless optical access system, which accomplish hybrid 16PSK/256QAM
EPON Uplink and Downlink Technology Between the OLT and ONU EPON, there is a single optical fiber to provide symmetric 1.25Gbps bandwidth limitations by physical interface, the actual provision of
To exploit the full potential of SWAN, we propose practical protocols for its operation and analyze its performance in both multi-PA uplink and downlink communications.
The binary exponential backoff (BEB) algorithm in the standard WLAN is the key factor that leads to the throughput degradation and the unfairness between uplink and downlink transmissions. Therefore,
Analyze the link budget for communication over the optical inter-satellite link, uplink, or downlink, depending on the value of the Type field of the link structure.
We study an application of link asymmetry between downlink and uplink in orthogonal frequency division multiple access (OFDMA) systems. In our previous works, we investigated