Analisis Kapasitas Kanal Mimo 2×2 HF Gelombang Angkasa Moda Jamak

suharto, teguh (2019) Analisis Kapasitas Kanal Mimo 2×2 HF Gelombang Angkasa Moda Jamak. Masters thesis, INSTITUT TEKNOLOGI SEPULUH NOPEMBER.

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Abstract

Sistem komunikasi High Frequency (HF) sebagai teknologi telekomunikasi darurat dapat menjangkau wilayah bencana yang terisolasi pada jarak yang jauh dengan bantuan pantulan ionosfer. Indonesia merupakan negara kepulauan yang membentang dari Sabang hingga Merauke. Kondisi seperti ini menyebabkan sistem komunikasi gelombang HF (High Frequency) sebagai salah satu teknologi alternatif yang bisa digunakan dalam keadaan darurat. Pada sistem komunikasi HF memiliki kelemahan bandwith yang sempit yang mengarah pada channel capacity yang rendah. Dalam sistem komunikasi HF pemanfaatan antena multiple-input multiple-output (MIMO) pada kedua pemancar dan penerima dapat meningkatkan ketersediaan dan kapasitas saluran. Penelitian ini melaporkan pengukuran kapasitas kanal MIMO 2×2 pada jarak 3044 km. Hasilnya digunakan untuk menyelidiki capacity improvement factor (CIF) pada kapasitas SISO dan MIMO, dari hasil menunjukkan perbandingan CIF berada di kisaran 0,83-1,87 kali.
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Abstract—High Frequency (HF) communication systems, as an emergency telecommunication technology, can reach isolated disaster-affected regions over long distances through ionospheric reflections. Indonesia, as an archipelagic country stretching from Sabang to Merauke, presents geographical conditions that make HF communication systems a viable alternative for emergency communications. However, HF communication systems suffer from limited bandwidth, resulting in low channel capacity. The use of Multiple-Input Multiple-Output (MIMO) antennas at both the transmitter and receiver can improve channel availability and increase channel capacity. This paper presents 2×2 MIMO channel response measurements over a 3,044 km communication link. The results are used to investigate the Capacity Improvement Factor (CIF) by comparing the capacities of Single-Input Single-Output (SISO) and MIMO systems. The measurement results show that the CIF ranges from 0.83 to 1.87 times, demonstrating the potential of MIMO techniques to enhance the capacity of HF communication systems.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Channel Capacity, HF Communication, MIMO, Skywave
Subjects:	L Education > LT Textbooks T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA1637 Image processing--Digital techniques. Image analysis--Data processing.
Divisions:	Faculty of Electrical Technology > Electrical Engineering > 20101-(S2) Master Thesis
Depositing User:	TEGUH IMAM SUHARTO
Date Deposited:	05 Aug 2026 07:15
Last Modified:	05 Aug 2026 07:15
URI:	http://repository.its.ac.id/id/eprint/65356

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