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87  Articles
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RF Downlink merupakan modul penyusun sistem pemancar satelit nano untuk transmisi citra yang terdiri dari dua bagian utama yaitu upconverter frekuensi dan power amplifier. Upconverter frekuensi nantinya akan mencampur sinyal informasi yang telah dimodulas... see more

Pada perancanangan dan implementasi sistem penerima satelit nano pada stasiun bumi khususnya pada bagian RF-downlink ini dimana yang menjadi perhatian adalah LNA dan downconverter frequency. Sistem kerja dari RF Downlink adalah sinyal yang diterima ... see more

Multi-beam massive multiple-input–multiple-output (MIMO) configurations that utilize high-power beam selection in the analog parts and blind algorithms such as the constant modulus algorithm (CMA), which do not require channel state information (CSI), in ... see more

This paper proposes a novel receiving antenna allocation scheme for downlink multiuser multiple input multiple output orthogonal frequency division multiplexing (MU-MIMO-OFDM) transmission; an access point (AP) simultaneously transmits data frames to a co... see more

In this paper, we address the problem of cell association during a handover performed in a dense heterogeneous network, where the preference of a mobile user’s equipment in terms of uplink traffic is not the same as for the downlink traffic. Therefore, si... see more

Saat ini perkembangan satelit di Indonesia selangkah lebih maju, hal tersebut ditandai dengan pembuatan satelit nano IINUSAT (Indonesian Inter University Satellite) yaitu satelit yang dikembangkan dengan kerjasama antar universitas ternama di Indonesia; U... see more

In 5G ultra-dense networks, a large number of mobile users (MUs) request a huge amount of high data rate video traffic causing a peak congestion situation at the macro base station (MBS) and small-cell base stations. This situation certainly reduces the t... see more

The 3GPP release for 5G (R15) assigns each User Equipment (UE) a radio beam by employing Massive Multi-User MU-Multiple-Input-Multiple-Output (MIMO) technology. Each beam carries, at the downlink, a data rate according to the modulation and coding scheme ... see more

Deploying WiMAX through High Altitude Platform Station (HAPS) system is a new means of wireless delivery method and thus attracting much the attention in a telecommunication society. However delivering WiMAX through the terrestrial network has already bee... see more

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