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Yuliah Qotimah
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Journal of ICT Research and Applications
Published by Institut Teknologi Bandung
ISSN : 23375787     EISSN : 23385499     DOI : https://doi.org/10.5614/itbj.ict.res.appl.
Core Subject : Science,
Computer Science & IT
Journal of ICT Research and Applications welcomes full research articles in the area of Information and Communication Technology from the following subject areas: Information Theory, Signal Processing, Electronics, Computer Network, Telecommunication, Wireless & Mobile Computing, Internet Technology, Multimedia, Software Engineering, Computer Science, Information System and Knowledge Management.
Arjuna Subject : Ilmu Komputer (semua kategori) - Aplikasi Ilmu Komputer
Articles 3 Documents
 1 
Search results for , issue "Vol. 4 No. 1 (2010)" : 3 Documents clear
Refining Spectrum Fee to Increase Utilization Efficiency by Adopting ITU-R SM 2012-2 Case Study: Cellular Service in Indonesia Ismail Ismail; Suhono H. Supangkat; Hendrawan Hendrawan; Basuki Y. Iskandar
Journal of ICT Research and Applications Vol. 4 No. 1 (2010)
Publisher : LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.2010.4.1.1

Abstract

The spectrum fees called as "Biaya Hak Pengguna Frekuensi" (BHPF) for cellular services in Indonesia are currently calculated based on apparatus, proportionally to the number of transceiver stations and radio channels. Unfortunately, the formula cannot promote the efficiency of frequency spectrum efficiency. ITU-R SM 2012-2 recommended the spectrum fee formula that can promote the efficiency; Administrative Incentives Price (AIP) also claims to promote the effectiveness of the radio spectrum utilization. By combining ITUR SM 2012-2 with AIP, the frequency fee formula can promote not only the efficiency but also the effectiveness of spectrum utilization. This paper will explain and discus the modification of ITU-R SM 2012-2 with AIP in designing the spectrum fees for cellular services in Indonesia. 
MSB-First Interval-Bounded Variable-Precision RealTime Arithmetic Unit Yusrila Y. Kerlooza; Yudi S. Gondokaryono; Agus Mulyana
Journal of ICT Research and Applications Vol. 4 No. 1 (2010)
Publisher : LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.2010.4.1.2

Abstract

This paper presents a paradigm of real-time processing on the lowest level of computing systems: the arithmetic unit. The arithmetic unit based on this principle containing addition, subtraction, multiplication and division operations is  described.  The  development  of  the  computation  model  is  based  on  the  Soft Computing and the Imprecise Computation paradigms, combined with the MSBFirst  and  the  Interval  Arithmetic  techniques.  Those  paradigms  and  techniques give  the  arithmetic  unit  design  the  ability  to  compute  with  precisions  as  a function  of time available or accuracy needed. The predictability of processing time and result's accuracy are obtained by means of processing granularity of k bits and by  using look-up tables. We present an evaluation of  the operation in time  delay  and  computation  accuracy  that  shows  significant  performance improvement over conventional arithmetic unit architecture, that is,  the ability to produce  intermediate-result  during  execution  time,  to  give  certainty  in computation  accuracy  even  before  the  process  finish  time  by  providing  two intermediate-results,  which  act  as  the  lower  and  upper  bound  of  the  real  and complete computation result, and finally, gain high computation accuracy from the early time of the execution process.
The Concept of Data Model Pattern Based on Fully Communication Oriented Information Modeling (FCO-IM) Fazat Nur Azizah; Benhard Sitohang; Guido P. Bakema; Oerip S. Santoso
Journal of ICT Research and Applications Vol. 4 No. 1 (2010)
Publisher : LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.2010.4.1.3

Abstract

Just as in many areas of software engineering, patterns have been used in  data modeling  to  create high quality  data  models.  We  provide  a  concept  of data  model  pattern  based  on  Fully  Communication  Oriented  Information Modeling  (FCO-IM),  a  fact  oriented  data  modeling  method.  A  data  model pattern is  defined  as  the relation  between  context, problem,  an d  solution.  This definition is adopted from the concept of pattern by Christopher Alexander. We define the concept of Information Grammar for Pattern (IG P) in the solution part of  a  pattern,  which  works  as  a  template  to  create  a  data  model.  The  IG P  also shows how a pattern can relate to other patterns. The data model pattern concept is then used to describe 15 data model patterns, organized into 4 categories. A case study on geographical location is provided to show the use of the concept in a real case.

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