Operator calculus approach for route optimizing and enhancing wireless sensor network

October 1, 2017

This is the abstract of my paper which accepted and published at Journal of Network and Computer Applications,Vol 97, pp. 1-10. 2017. DOI: 10.1016/j.jnca.2017.08.007.

Abstract
Route optimization is one of important feature in wireless sensor networks in order to enhancing the life time of WSNs. Since Centrality is one of the greatest challenges in computing and estimating the important node metrics of a structural graph, it is necessary to calculate and determine the importance of a node in a network. This paper proposes an alternative way to optimizing the route problems which is based on multi-constrained optimal path (MCOP) and operator calculus approach. A novel routing protocol called Path Operator Calculus Centrality (POCC) is proposed as a new method to determine the main path which contains high centrality nodes in a wireless sensor network deployment. The estimation of centrality is using the operator calculus approach based on network topology which provides optimal paths for each source node to base station. Some constraints such as energy level and bit error rate (BER) of node are considered to define the path centrality in this approach. The simulation evaluation shows improved performance in terms of energy consumption and network lifetime.

Keywords
Wireless Sensor Network, Multi-constrained Optimal Path Centrality, Path Centrality, Operator Calculus

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Pertemuan #2 Sistem Multimedia : Text, Hypertext dan Gambar

September 1, 2017

Pertemuan kedua matakuliah Sistem Multimedia akan membahas tentang text, hypertext dan gambar.

Text adalah data yang terdiri dari karakter-karakter yang menyatakan kata-kata atau lambang-lambang untuk berkomunikasi oleh manusia dalam bentuk tulisan. Di dalam Sistem Multimedia, produk multimedia bergantung pada text untuk banyak hal. Antara lain:

  • Untuk menjelaskan bagaimana cara kerja sebuah aplikasi
  • Untuk memandu user dalam menjelajahi sebuah aplikasi
  • Menyampaikan informasi yang dirancang aplikasi

Anda bisa mengunduh materi pdf disini.

Yuk Berbagi untuk anak-anak jalanan

August 26, 2017


Berbagi untuk anak jalanan (anjal) tidak hanya dapat dilakukan pada bulan puasa (ramadan) saja. Karena kebanyakan orang memiliki pemahaman bahwa bulan ramadan adalah bulan yang suci dan baik untuk berbagi sesama manusia. Tapi kali ini justru saya berbagi bersama anak jalanan ketika saya ada kesempatan baik, yaitu di bulan Agustus, atau bulan Dzulhijjah dalam kalender hijriah. Read the rest of this entry »

Kuliah Umum di FTI Universitas Yarsi, Jakarta

August 23, 2017


Kamis, 10 Agustus 2017, saya mendapat kehormatan untuk memberikan Kuliah Umum di Fakultas Teknologi Industri (FTI), Universitas Yarsi, Jakarta. Peserta kebanyakan adalah para mahasiswa dan juga para staf pengajar atau Dosen. Read the rest of this entry »

Step-by-Step : Install Odoo 9 on Ubuntu 14.04

June 2, 2017

Here is our experience how to install Odoo 9 on Ubuntu 14.04 (Desktop or Server), step-by-step.

Step 1: Before begin the installation
Make sure your Ubuntu has all the latest versions & patches by doing an update:
sudo apt-get update
sudo apt-get dist-upgrade

Read the rest of this entry »

NS-2: WSN with obstacles

May 29, 2017

This is the tcl script for simulating a Wireless Sensor Network with some obstacles in the target area.

Read the rest of this entry »

A REVIEW : Top Open Source ERP Systems

March 31, 2017
The big guns in that space are Oracle, SAP, and Microsoft Dynamics. Their offerings are comprehensive, but also expensive. What happens if your business can’t afford one of those big implementations or if your needs are simple? You turn to the open source alternatives.

There are a number of flexible, feature-rich, and cost effective open source ERP systems out there. Here is a look at four of them. 

What to look for in an ERP system

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Proyek Ashaku.or.id

October 30, 2016

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Selamat pagi/siang/sore semua. Bonjour…Good morning… Saya sedang mengerjakan sebuah proyek, yaitu proyek cinta tanah air dan anak-anak Indonesia.  Ide ini muncul justru ketika saya dan keluarga yang sedang berada sekitar 12.000 KM dari Indonesia, di negeri heksagon, negeri kelahiran Napoleon, Perancis (France). Pada tahun ke-4 ini, saya melihat, mengamati, memperhatikan beberapa hal, seperti kehidupan beragama, sosial, kondisi politik, ekonomi, budaya dan pendidikan yang terjadi baik di Indonesia maupun di Perancis. Read the rest of this entry »

Organizing Committee in WMNC’16

July 23, 2016


I had a chance to be one of Organizing Committee, as a Submission Chairs, in The 9th IFIP Wireless and Mobile Networking Conference (WMNC) which held in Colmar, France from July 11 to July 13, 2016. Read the rest of this entry »

Flashing my smartphone

April 16, 2016

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These last few days, my smartphone has some serious problems. So I decided to reinstall and upgrade the Android system by rooting the device. 😀

After browsing and reading from forums, here are the steps that I did.
I put my device in fastboot mode (power off, then press the power and volume down buttons simultaneously).
On my desktop, in my case I used Ubuntu, open a terminal, and go to the directory where I installed the Android SDK tools (or make sure ‘fastboot’ is in your $PATH). Read the rest of this entry »