Public Speaking

June 18, 2012

Castalia Simulator

November 12, 2010

Mainan baru buat belajar GTS IEEE 802.15.4 or Wireless Body Area Network (WBAN)   🙂

Castalia is a simulator for Wireless Sensor Networks (WSN), Body Area Networks (BAN) and generally networks of low-power embedded devices. It is based on the OMNeT++ platform. It offers a complete new way to run simulations and view the results. It has a brand new radio module. Implemented GTS mode in 802.15.4 MAC. It implements the Baseline MAC for Body Area Networks, proposed by the IEEE 802.15 Task Group 6.

Source :

Nov 12,  2010.

Guide to Wireless Mesh Networks

May 3, 2010

Source :

Wireless communication technologies continue to undergo rapid advancement. The attractiveness of Wireless Mesh Networks (WMN)s, in general, can be attributed to their characteristics: the ability to dynamically self-organize and self-configure, coupled with the ability to maintain mesh connectivity, leads in effect to low set-up/installation costs, simpler maintenance tasks, and service coverage with high reliability and fault-tolerance. As a result, WMNs have found many useful applications in a broad range of domains.

WMNs represent a key technology for future generation wireless networks, and this broad-ranging and comprehensive guidebook presents new ideas and results from research to address the challenges ahead. This unique resource describes all the fundamental key topics and covers both the important core and specialized issues in the field. Each chapter is written by topical area experts, with the first chapters devoted to the basics of WMNs and subsequent ones dealing with some of the more specialist topics, such as the WiMAX metro area mesh networks and the symbiosis of cognitive radio with WMNs.
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Opensource Router manager

October 28, 2009

source :
Meshlium Manager System, “the Open Source Router Manager”
Interface :
Interface configuration of WiFi, ZigBee, Bluetooth, GPRS and Ethernet, with easy and intuitive bridge-building between them.

802.15.4 vs ZigBee

December 29, 2008

source :

IEEE 802.15.4 (intro)

This standard defines a communication layer at level 2 in the OSI (Open System Interconnection) model. Its main purpose is to let the communication between two devices.It was created by the Institute of Electrical and Electronics Engineers (IEEE), entity which main task is to set standards so that technological developments can count with a common platform of rules to be set over. In the Waspmote and SquidBee devices this protocol is set using the XBee 802.15.4 OEM Digi module.

ZigBee (intro)

This standard defines a communication layer at level 3 and uppers in the OSI model. Its main purpose is to create a network topology (hierarchy) to let a number of devices communicate among them and to set extra communication features such as authentication, encryption, association and in the upper layer application services. It was created by a set of companies which form the ZigBee Alliance. In the Waspmote and SquidBee devices this protocol is set using the XBee ZB Digi module.