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A common term for a wireless bridge is NLOS, which stands for “near” or “non-line of sight.” It is used to describe a situation in which there is no clear line of sight. The term “non-line of sight” refers to situations in which the radio transmitter and receiver are not directly visible to the eye.
Multiple signal propagation paths are used to address this issue. Antennas and other similar communication tools can overcome non-line of sight. Ground reflections are examples of non-line-of-sight (NLOS) radio propagation, which occurs outside of the typical line-of-sight (LOS) between the transmitter and receiver.
The term “near-line-of-sight,” also known as “NLOS,” refers to situations in which a physical object in the innermost Fresnel zone partially blocks the path. The imaginary line that separates an observer from the target is known as line of sight (LOS). Line of sight is the straight line between a transmitter and a receiver, including any obstacles in the way. High-speed communication requires a clear line of sight.
Typically, perfect line of sight is required for a wireless bridge to function at full throughput. In situations where there are a few tree branches in the way, for example, it may be possible to establish a link using the lower frequency bridges in close proximity to line of sight. The ability of non-line-of-sight (NLOS) imaging to reconstruct hidden objects from indirect light paths that scatter multiple times in the environment is very interesting for many different applications.
The Global Non-Line-of-Sight (NLoS) data link modem market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
The RADWIN 2000 series supports distances of up to 120 kilometers or 75 miles and offers speeds ranging from 25 Mbps to 750 Mbps across a wide range of sub-6 GHz licensed and unlicensed bands.
RADWIN 2000 is compatible with advanced networking protocols. The research community has shown a lot of interest in improving the enabling technologies of underwater wireless communication and underwater sensor networks in response to the growing demand for ocean observation systems.
For extensive data collection on land, sensors and ad hoc sensor networks are emerging as tools, and subsea-based solutions are being sought. The underwater environment makes it extremely difficult for the network and the sensors to communicate effectively.
We propose a novel non-line-of-sight network concept in which the link is implemented by means of back-reflection of the propagating optic signal at the ocean-air interface and derive a mathematical model of the channel to address the unique characteristics of underwater wireless communication in sensor networks. Broadcast broadband communications like video transmissions and point-to-multipoint links can be carried out in an energy-efficient manner.
Using cutting-edge silicon photomultiplier detectors, we demonstrate the viability of this idea and the achievable bit error rates as a function of sensor node separation.
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