ITB Journal of Information and Communication Technology Volume 4, Number 1, May 2010 | Perpustakaan Universitas Bhayangakara Jakarta Raya
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Informasi Detil
| Volume |
Volume 4, Number 1, May 2010
|
|---|---|
| Penerbit | The Institute for Research and Community Services Institute Technology Bandung : Bandung., 2010 |
| ISSN |
1978-3086
|
| Subyek |
Artikel Jurnal
| Judul | Abstract | Halaman |
|---|---|---|
| Refining Spectrum Fee to Increase Utilization Efficiency by Adopting ITU-R SM 2012-2 Case Study: Cellular Service in Indonesia | 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. | 1-22 |
| MSB-First Interval-Bounded Variable-Precision RealTime Arithmetic Unit | 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. | 23-46 |
| The Concept of Data Model Pattern Based on Fully Communication Oriented Information Modeling (FCO-IM) | 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. | 47-66 |