ADAPTIVE WAVEFORM AND REFLECTION PATH DETERMINATION SYSTEM BASED ON ATMOSPHERIC MOLECULAR ABSORPTION PROFILE

Abstract

The invention is a system that selects the waveform, band, and reflection path in THz communication according to the atmospheric molecular absorption profile. The system comprises an Atmospheric Sensor Module (1), a Molecular Absorption Analysis Unit (2), an Adaptive Waveform and Band Selection Engine (3), a Reflection Path Optimization Module (4), a THz Transmitter-Receiver Terminal (5), and a Central Control and Decision Unit (6). By analyzing data such as humidity and temperature in the environment, the system determines the frequency bands and reflection paths through which THz signals can be transmitted with minimal loss. In this way, signal loss is minimized depending on environmental conditions, and communication continuity is ensured.

Description

1 TARIFF ADAPTIVE WAVEFORM ACCORDING TO ATMOSPHERIC MOLECULAR ABSORPTION PROFILE AND REFLECTION PATH DETERMINATION SYSTEM Technical Area The invention operates in the Terahertz (THz) frequency band within the scope of 6G communication technologies. It is related to wireless communication systems. In particular, the effects of atmospheric molecular absorption. Real-time analysis of waveform, bandwidth, and reflection path optimization 10 It offers a decision support system that does this. State of the Art Terahertz (THz) communication has the potential to deliver very high data speeds in 6G networks. It has this capability, however, this frequency band is extremely sensitive to environmental factors. In current systems, Absorption losses caused by molecules such as water vapor and oxygen are generally constant. It is either calculated based on the model or ignored. This is especially true in humid weather. Under these conditions or variable atmospheric conditions, it can lead to signal loss and connection interruptions. It opens. Current techniques only increase the output power to 20 when signal attenuation occurs. They are trying to improve it, but parameters such as waveform or reflection path are dynamic. This does not change it. This deficiency leads to a decrease in energy efficiency and spectral resources. This leads to misuse. Furthermore, the high directivity of THz signals... Therefore, determining alternative reflection paths when the direct line of sight (LoS) is interrupted. Existing systems are insufficient in this regard. 25 Purpose of the Invention The invention analyzes atmospheric molecular absorption profiles in real-time during THz communication. It aims to optimize communication quality by considering the humidity, temperature, and 30% of the environment. It calculates molecular absorption coefficients using pressure data and determines the best option based on this data. It selects the appropriate waveform. The main purpose of the invention is to address situations where signal attenuation is high. Dynamic band selection that bypasses frequency ranges by identifying those ranges. The aim is to achieve this. Also, when the direct line of sight is obstructed, the surrounding surfaces... Considering the reflection properties, the reflection path with the lowest absorption loss is 35. This minimizes sudden connection losses in THz communication and saves energy. 2 Consumption is optimized. Unlike existing technology, the invention not only increases power but also improves physical performance. It enables the restructuring of layer parameters according to atmospheric conditions. Figures that will help understand the invention. Figure 1 shows a general representation of the system that is the subject of the invention. Explanation of Part References 1. Atmospheric Sensor Module 10 2. Molecular Absorption Analysis Unit 3. Adaptive Waveform and Band Selection Engine 4. Reflection Path Optimization Module 5. THz Transmitter-Receiver Terminal 6. Central Control and Decision Unit 15 Detailed Description of the Invention The invention addresses the negative effects of atmospheric conditions on signal transmission in THz communication systems. It is a system that minimizes the effects. The system consists of 20 sensors that detect physical changes in the environment. Atmospheric Sensor Module (1), Molecular Absorption Analysis Unit (2) which processes this data, The Adaptive Waveform and Band Selection Engine (3), which determines the appropriate signal parameters, the signal The Reflection Path Optimization Module (4), which plans the transmission path, performs the communication with THz. Transmitter-Receiver Terminal (5) and Central Control and Decision Unit (6) that manages the entire process It includes. 25 Atmospheric Sensor Module (1) measures the water vapor density, temperature, pressure and gas in the environment. It measures environmental data such as concentration in real-time. This data determines which THz signals are being used. This is critical to determining which frequencies will absorb more light. The sensor module, It continuously shares the data it obtains with the Molecular Absorption Analysis Unit (2). 30 The Molecular Absorption Analysis Unit (2) uses the data from the sensors to determine the THz frequency. This unit extracts the molecular absorption profile in the band. This unit determines the specific absorption profile of water molecules and oxygen. It analyzes the absorption lines it produces at different frequencies. For example, 0.5 THz to 10 THz Which bands in the spectrum are "transparent" (low absorption) and which are "opaque"? 35 3 (high absorption) is determined. As a result of this analysis, a diagnosis is made for the current atmospheric conditions. An absorption map is created. The Adaptive Waveform and Band Selection Engine (3) selects the absorption map from the analysis unit. It selects the most suitable waveform and bandwidth accordingly. If there is high humidity in the environment and 5 If absorption has increased at certain frequencies, the motor disables these frequencies, reducing the signal. It shifts to less affected bands. At the same time, to maintain the signal-to-noise ratio (SNR). From standard waveforms such as OFDM (Orthogonal Frequency Division Multiplexing), more It switches to more robust or narrower band specialized waveforms. Reflection Path Optimization Module (4) optimizes the high directivity and reflection of THz signals. It determines the most suitable transmission path by using its characteristics. Direct line of sight (LoS) when interrupted or when atmospheric absorption is very high along a particular path, the module It evaluates the reflectance coefficients of the surrounding surfaces. This module minimizes the signal. It calculates the alternative routes where the light will be absorbed and which have the highest reflection efficiency. 15 The THz Transmitter-Receiver Terminal (5) uses the specified waveform, band and route information. It carries out communication. The terminal is sent by the Central Control and Decision Unit (6). The terminal updates the antenna configuration and frequency settings in real-time according to the commands. By also feeding post-transmission feedback data back into the system, a cyclical optimization is achieved. 20 provides. The Central Control and Decision Unit (6) acts as the brain of the system. This unit is Atmospheric Sensor Module (1), Molecular Absorption Analysis Unit (2), Adaptive Waveform and Band Selection Coordinate the data flow between the engine (3) and the Reflection Path Optimization Module (4) 25 The unit runs a decision algorithm based on the received data; if the absorption rate is a certain level... If the threshold value is exceeded, it automatically generates a lane change or route update command. The system operating scenario is as follows: Atmospheric Sensor Module (1) detects the humidity and It detects the temperature increase. The Molecular Absorption Analysis Unit (2) detects this increase at 300 GHz 30 It calculates that this will lead to a significant signal loss in the band. Adaptive Waveform and Band Selection The engine (3) selects the 450 GHz band instead of the 300 GHz band and makes the waveform more robust. Updates to a modulation type. Reflection Path Optimization Module (4), directly on the line Because the absorption is high, it reflects the signal off a nearby metal surface to the receiver. It determines a new route to deliver. The Central Control and Decision Unit (6) determines all these parameters. 35 It transmits to the THz Transmitter-Receiver Terminal (5) device and communication continues uninterrupted.

Claims

4 REQUESTS 1. In THz communication, waveform, band, and frequency are determined according to the atmospheric molecular absorption profile. It is a system that selects a reflection path, and its characteristic feature is;  Atmospheric Sensor Module (1) which measures humidity, temperature and pressure data in the environment, 5  Using Atmospheric Sensor Module (1) data, molecular in the THz frequency band Molecular Absorption Analysis Unit (2) which generated the absorption map,  According to the map created by the Molecular Absorption Analysis Unit (2), the most suitable Adaptive Waveform and Band Selection, which determine the waveform and bandwidth. Engine (3), 10  Reflection calculates alternative transmission paths where the signal will experience the least absorption. Route Optimization Module (4),  THz Transmitter-Receiver Terminal (5) which performs communication with the specified parameters and  Manages data flow between all modules and decides on parameter updates. Central Control and Decision Unit (6) 15 It includes.

2. According to Claim 1, the waveform in THz communication is determined based on the atmospheric molecular absorption profile. It is a system that selects the form, band and reflection path, and its feature is the Atmospheric Sensor Module (1) Based on the data obtained, the absorption coefficient is 20 in certain frequency ranges. If a specified threshold value is exceeded, the Adaptive Waveform and Band Selection Engine (3) a decision mechanism that automatically triggers band changes It includes.

3. According to claim 1, in THz communication, the wavelength is 25 according to the atmospheric molecular absorption profile. It is a system that selects the form, band and reflection path, and its characteristic is direct line of sight (LoS). When loss or high absorption is detected, Reflection Path Optimization Module (4) By analyzing the reflectivity coefficients of the surrounding surfaces, the lowest loss reflection is determined. determination of the route and implementation of this route by the THz Transmitter-Receiver Terminal (5) It includes the process. 30 35

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