ELAAH MODEL-MODEL PROPAGASI RADIO UNTUK SISTEM RADIO DUA-ARAH PITA VHF-UHF PADA AREA PERTAMBANGAN TERBUKA DAERAH TROPIS

Prasarana telekomunikasi diperlukan untuk menunjang operasional pertambangan dengan area sangat luas. Sistem komunikasi radio dua-arah yang paling layak dipertimbangkan untuk melayani area tersebut diatas. Agar sistem radio bisa menghasilkan performa yang optimal perlu adanya perencanaan jaringan radio, yang melibatkan penggunaan model propagasi radio. Permasalahan dari penelitian ini adalah cara menentukan model propagasi yang sesuai untuk sistem radio dua-arah pada pita very high frequency dan ultra high frequency (VHF-UHF) pada area pertambangan terbuka dengan kondisi lahan tidak beraturan. Tujuan dari penelitian ini adalah investigasi sejumlah model propagasi radio yang sesuai untuk sistem komunikasi radio dua-arah pada pita VHF-UHF di area pertambangan terbuka dengan kondisi geografis yang tak beraturan untuk daerah tropis, dengan studi kasus di wilayah pulau Kalimantan, Indonesia. Metode yang digunakan adalah penentuan obyek riset, penentuan parameter jaringan radio, investigasi model propagasi, studi literature, analisis dan evaluasi model, klasifikasi model. Hasil analisis menunjukkan Standard Propagation Model memiliki performa terbaik untuk prediksi sistem radio area pertambangan. Namun, metode ini memiliki kekurangan yang memerlukan kalibrasi cukup kompleks

Performance analysis of wireless mesh networks for underground mines

Abstract: Underground mines are harsh environments that have unique challenges that limit wireless communication. To ensure the safety and efficiency of mining operations, communication systems play a vital role. Despite the major developments in communication technologies, underground mines are still challenging environments for wireless communication, however, the advent of wireless mesh networks offers a cutting-edge solution to the mining industry and understanding the performance of this technology is fundamental to its application in dynamic areas of underground mines. This research project aims at conducting a performance analysis of wireless mesh networks by developing a prototype system set up of wireless mesh transceivers to conduct a feasibility study of data transmission on the network in underground mines. The second aspect of this study investigates network parameters, such as latency, throughput, and signal-to-noise, as a function of increasing mesh nodes on the network and internode spacing of mesh nodes. By combining theoretical models with real-time performance of the mesh system, realistic conclusions and better recommendations can be given to mining companies with regards to deploying wireless mesh systems in their underground mines.M.Ing. (Electrical and Electronic Engineering Science

NIOSH Mining Program: Evidence Package for 2008-2018

This document contains materials to demonstrate the relevance and impact of the Mining Program\u2019s work in the areas of disaster preparedness and response, ground control, and respirable hazards

The Dagstuhl Beginners Guide to Reproducibility for Experimental Networking Research

© Owner/Author | ACM 2019 This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in ACM SIGCOMM Computer Communication Review, http://dx.doi.org/10.1145/3314212.3314217.Reproducibility is one of the key characteristics of good science, but hard to achieve for experimental disciplines like Internet measurements and networked systems. This guide provides advice to researchers, particularly those new to the field, on designing experiments so that their work is more likely to be reproducible and to serve as a foundation for follow-on work by others.EC/H2020/679158/EU/Resolving the Tussle in the Internet: Mapping, Architecture, and Policy Making/ResolutioNe

On the Combination of Game-Theoretic Learning and Multi Model Adaptive Filters

This paper casts coordination of a team of robots within the framework of game theoretic learning algorithms. In particular a novel variant of fictitious play is proposed, by considering multi-model adaptive filters as a method to estimate other players’ strategies. The proposed algorithm can be used as a coordination mechanism between players when they should take decisions under uncertainty. Each player chooses an action after taking into account the actions of the other players and also the uncertainty. Uncertainty can occur either in terms of noisy observations or various types of other players. In addition, in contrast to other game-theoretic and heuristic algorithms for distributed optimisation, it is not necessary to find the optimal parameters a priori. Various parameter values can be used initially as inputs to different models. Therefore, the resulting decisions will be aggregate results of all the parameter values. Simulations are used to test the performance of the proposed methodology against other game-theoretic learning algorithms.</p