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Hesti Susilawati
Prodi D3 Teknik Telekomunikasi AKATEL Sandhy Putra Purwokerto
Computer Science & IT Electrical & Electronics Engineering

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Peningkatan Kapasitas Sel Pada Sistem Seluler GSM Alfin Hikmaturokhman; Hesti Susilawati; Shinta Yunita Sari
JURNAL INFOTEL Vol 1 No 2 (2009): November 2009
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v1i2.67

Abstract

Increasing cell capacity in GSM applied by several methods such as Fixed Channel Allocation (FCA), Channel Sharing, Channel Borrowing and Cell Splitting to solve the massive increasing of cellular users amount in the whole world. It necessary to calculate the number of the subscriber within each cell in a certain busy hour based on available channel capacity in order to serve the traffic capacity in a cell. In this work, we present calculations to compare cell capacity without increasing cell capacity method and cell capacity using increasing capacity methods. As a programming tool, we used Borland Delphi 7. In addition, this simulation software added with comprehensive explanations, Erlang B Table, and graphics to make it easier and more efficient in analyzing.
Simulasi Perubahan Energi Per Bit Dan Derau Terhadap Jumlah Kanal Dan Cakupan WCDMA Alfin Hikmaturokhman; Hesti Susilawati; Tantiningrum Niken
JURNAL INFOTEL Vol 2 No 2 (2010): November 2010
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v2i2.82

Abstract

Eb/No parameter is the measure of signal to noise ratio for a digital communication system, it is measured at the input to the receiver and is used as the basic measure of how strong the signal is, or in other words Eb/No indicates the fluctuation of received signal strength in the receiver. Eb/No is affected by several factors, such as speed of mobile station, propagation environment and bit rate. The variations of Eb/No value will affect to the number of offered channel and coverage in WCDMA. The impact of the variation of Eb/No value could be recognized in the result of the calculations. The purpose of this research is to build simulation models by using Delphi to view and analyze the influence of Eb/No of total channels and WCDMA coverage. The results from simulation analysis showed that the larger of Eb/No and bit rate used, the number of channels on offer will be smaller and the value of BS is low sensitivity, which means loads of traffic will also offer little that would cause the quality to be better systems and transmit power MS becomes more lower in order to maintain the value of Eb/No to avoid the drop call.
Co-Authors Alfin Hikmaturokhman Shinta Yunita Sari Tantiningrum Niken