Story of our Portfolio
In late 1999 and early 2000, the question was:
” Is it at all possible to keep an internet connection in a fast moving environment as a train or a car moving a high speed, while obtaining 1Mbps or even 10Mbps of speed?”
Back in 1999, the mobile technology available with “fast” internet was WiFi and some initial developments were made in “Packet Data” services such as Motorola iDEN and others.
However, although our research begin with class with Dr. Helal called “Mobile Computing” and a small simulator was created using C/C++:
Later on this simulator was replaced with formal research using NS-2, a network simulator created by the networking community with some mobile extensions. However, at that time NS-2 was unable to provide reliable and repeatable mobile simulations that enabled us to answer the question in hand. As such, RAMON was created as part of Edwin Hernandez, PhD Dissertation at that time. RAMON was a hardware tool that consisted in using a network emulator, NIST while simulating the wireless physical layer of propagation, simulated with a simple Path Loss model (PL) which matched a particular equation for the frequency in use, in the case of RAMON, 2.4GHz.
RAMON was a stable and reliable system to test and create mobile protocols, an that is how the “Predictive Mobile IP” protocol was built and created using Mobile IP. In this particular case, Dynamics Mobile IP was used as a baseline. This protocol uses entities in the network to enable the creation tunnels that are predicted based upon your location in the wireless infrastructure.