Adaptive Modulation and Coding (AMC) around Building Environment for MS Communication at The Train

Eska, Andrita Ceriana

doi:10.24003/emitter.v6i2.279

Cited by 6 publications

(6 citation statements)

References 12 publications

(22 reference statements)

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“…Various frequency reconfiguration techniques are used in satellite communications to optimize performance, increase measurement accuracy, and ensure reliable communication under different conditions. Frequency reconfiguration algorithms used in satellite communications include dynamic spectrum access (DSA) [53], cognitive radio-based frequency reconfiguration [54], frequency-hopping spread spectrum (FHSS) [55], adaptive beamforming and frequency steering [56], and adaptive modulation and coding (AMC) [57]. DSA algorithms allow satellites to adjust their frequency utilization dynamically depending on the availability of spectra in their operational environment.…”

Section: Feasibility Of Frequency Manipulationmentioning

confidence: 99%

A Study on the Derivation of Atmospheric Water Vapor Based on Dual Frequency Radio Signals and Intersatellite Communication Networks

Nyamukondiwa,

Orger,

Nakayama

et al. 2023

Aerospace

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The atmospheric total water vapor content (TWVC) affects climate change, weather patterns, and radio signal propagation. Recent techniques such as global navigation satellite systems (GNSS) are used to measure TWVC but with either compromised accuracy, temporal resolution, or spatial coverage. This study demonstrates the feasibility of predicting, mapping, and measuring TWVC using spread spectrum (SS) radio signals and software-defined radio (SDR) technology on low Earth-orbiting (LEO) satellites. An intersatellite link (ISL) communication network from a constellation of small satellites is proposed to achieve three-dimensional (3D) mapping of TWVC. However, the calculation of TWVC from satellites in LEO contains contribution from the ionospheric total electron content (TEC). The TWVC and TEC contribution are determined based on the signal propagation time delay and the satellites’ positions in orbit. Since TEC is frequency dependent unlike TWVC, frequency reconfiguration algorithms have been implemented to distinguish TWVC. The novel aspects of this research are the implementation of time stamps to deduce time delay, the unique derivation of TWVC from a constellation setup, the use of algorithms to remotely tune frequencies in real time, and ISL demonstration using SDRs. This mission could contribute to atmospheric science, and the measurements could be incorporated into the global atmospheric databases for climate and weather prediction models.

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Section: Feasibility Of Frequency Manipulationmentioning

confidence: 99%

A Study on the Derivation of Atmospheric Water Vapor Based on Dual Frequency Radio Signals and Intersatellite Communication Networks

Nyamukondiwa,

Orger,

Nakayama

et al. 2023

Aerospace

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“…Hal tersebut menyebabkan semakin tingginya nilai Signal to Noise Ratio (SNR) yang dibutuhkan untuk menjaga nilai error tetap berada pada level yang diizinkan. Salah satu strategi untuk mengakomodasi hal tersebut adalah dengan menggunakan skema modulasi yang berbeda mengikuti kondisi noise yang lingkungan (Eska, 2018). Semakin tinggi skema modulasi maka semakin tinggi nilai SNR yang dibutuhkan (Dangi & Porwal, 2015).…”

Section: Gambar 1 Skema V2iunclassified

Algoritma Epsilon Greedy pada Reinforcement Learning untuk Modulasi Adaptif Komunikasi Vehicle to Infrastructure (V2I)

et al. 2021

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ABSTRAKKomunikasi Vehicle to Infrastructure (V2I) memungkinkan kendaraan dapat terhubung ke berbagai macam infrastruktur. Dengan kondisi kendaraan yang bergerak, maka kondisi lingkungan yang dilewati mempengaruhi parameter komunikasi. Implementasi modulasi adaptif pada skema V2I memperbolehkan sistem menggunakan skema modulasi yang berbeda untuk mengakomodasi perubahan kondisi lingkungan. Pada penelitian ini digunakan skema modulasi QPSK, 8PSK, dan 16-QAM dengan memanfaatkan reinforcement learning dan algoritma epsilon greedy untuk menentukan skema modulasi yang digunakan berdasarkan level AWGN. Dari hasil simulasi dengan kondisi nilai epsilon yang divariasikan dari 0.1 hingga 0.5 didapatkan bahwa semakin tinggi nilai epsilon maka semakin sering agen tidak memilih skema modulasi dengan reward tertinggi.Kata kunci: Reinforcement learning, Modulasi Adaptif, AWGN ABSTRACTVehicle to Infrastructure (V2I) communication allows vehicles to be connected to various infrastructures. Under the scenario of a moving vehicle, the environmental conditions which is passed by the vehicle will affect the communication parameters. The adaptive modulation implementation in the V2I scheme allows the system to use different modulation schemes to accommodate changing environmental conditions. In this study, the QPSK, 8PSK, and 16-QAM modulation schemes were used by utilizing reinforcement learning and the epsilon greedy algorithm to determine the modulation scheme used based on AWGN level. From the simulation results with the conditions of the epsilon value varying from 0.1 to 0.5, it is found that the higher the epsilon value, the more often the agent does not choose the modulation scheme with the highest reward.Keywords: Reinforcement learning, Adaptive Modulation, AWGN

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“…Modulation and coding scheme was used consist of QPSK, 16 QAM, and 64 QAM. The research was related to this research, such as AMC around the buildin g environment for the mobile station communication a t the train [21].…”

Section: Introductionmentioning

confidence: 99%

The Communication System of Building from Outdoor to Indoor with AMC at 10 GHz

Eska

2020

INFOTEL

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The propagation model of communication systems was used propagation from outdoor to indoor of building. In the inside that building used partition with brick. That propagation condition used downlink condition from mobile station side. The communication frequency used 10 GHz. Some parameter variation was used in this research such as radio base station coverage, mobile station location of building, and code rate communication. The coverage variation of radio base station used femtocell and picocell. As the result described signal to noise ratio (SNR)at every node communication, adaptive modulation and coding (AMC) variation, and coverage area percentage in the building. The modulation and coding scheme (MCS) was used consist of QPSK, 16 QAM, and 64 QAM

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Adaptive Modulation and Coding (AMC) around Building Environment for MS Communication at The Train

Cited by 6 publications

References 12 publications

A Study on the Derivation of Atmospheric Water Vapor Based on Dual Frequency Radio Signals and Intersatellite Communication Networks

A Study on the Derivation of Atmospheric Water Vapor Based on Dual Frequency Radio Signals and Intersatellite Communication Networks

Algoritma Epsilon Greedy pada Reinforcement Learning untuk Modulasi Adaptif Komunikasi Vehicle to Infrastructure (V2I)

The Communication System of Building from Outdoor to Indoor with AMC at 10 GHz

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