Mobile CAD and Mobile IP Mobility was at its early stage by the end of 1990s and early 2000. In fact, WiFI was at its infancy when Dr. Hernandez joined Microsoft in 2001. The thought of streaming in your vehicle was simply sci-fi, and nobody was able to predict having a movie streamed to your family and kids on a vehicle during a long trip. Today, watching an HD movie in a road trip and using a car’s hotpot or your tablet’s 4G or 5G are as common as electricity. In late 1999 and early 2000, the question that posed itself to researchers was: Back in 1999, the mobile technology available with “fast” internet was WiFi. Some initial developments were made using “Packet Data” services such as Motorola iDEN and Cellular Digital Packet Data (CDPD) which was heavily invested in by Microsoft co-founder Paul Allen as well as WorldCom Inc. However, the gap between reality and fiction was substantial. In general, it was not possible to watch a YouTube Video in a speeding bullet train back or even maintain a simple email session involving multimedia content. Our research began at the University of Florida in a class called “Mobile Computing” designed and taught by Dr. Helal (back then an Associate Professor at the Computer and Information Sciences and Engineering department), and a small simulator that was created using C/C++. This class was a new format, where every student was given an IBM ThinkPad laptop connected to a WiFi network through a WiFi PC-Card (when the debate was FHSS an DSSS was heating up as a VHS-Betamax situation). The class was recognized by local and national media as the first wireless classroom and received donations from IBM, WaveLAN, Cisco, and other sponsors. The class allowed all students to think forward to the future in the mold of what seemed impossible at the time. The class was the first in its kind to design mobile apps for mobile phones in North America by receiving the first Java Micro-Ediiton (J2ME) phone from Motorola, the i85, well before it entered the US market. All this shaped a mindset for all students about what is expected of them. Dr. Hernandez rose to the occasion and met the expectation. Mobile Survey on Simulation for Networks by Dr. Edwin Hernandez The only alternative available at that time to test a high-speed bullet train and validate a handover protocol was simulation. Later on. Dr. Hernandez replaced its own simulator with a formal research tool, called 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 would enable us to answer the important question on hand. In response, RAMON was created as part of Dr. Edwin Hernandez dissertation at that time. RAMON was a hardware tool that consisted of 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, a 2.4GHz prototype that operated using Cisco Routers, software-driven hardware attenuators, and a controller to change all simulation parameters. The assumption was that an All-IP network was going to be created one day and use the simulator for voice and data. A photo of the RAMON prototype is shown below followed by the famous RAMON paper. RAMON : Rapid Mobile Network Emulation from Dr. Edwin Hernandez The Research Started and I dwelled into solution The research in this field was basically unknown, ns-2 was failing to provide a clear answer to whether path loss models, propagation, and other parameters were able to handle speed. In the simulation RF propagation models were oversimplified and was not capable of predicting reality. Hence, a hybrid approach with Emulation and Simulation had to be created. Moreover, the state of the art at the time NS-2 was unable to meet the bar for handover simulation and proper study of mobility. Ns network simulator from Dr. Edwin Hernandez As part of the research, RAMON was created and by using RAMON a new mobility protocol was tested and created. We ordered attenuators, RF shield boxes, antennas, CISCO access points, ethernet switches, and all the components to build a prototype and experiment with it. And started experimenting, from the attenuation controllers, to RF leakage, to managing attenuation at different speeds, code was written and a simulator was created. The Dissertation: The Adaptive Networking Protocol RAMON became a stable and reliable system to test and create mobile protocols, and 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 of tunnels that are predicted based upon your location in the wireless infrastructure. Adaptive Networking Protocol for Rapid Mobility from Dr. Edwin Hernandez These are the slides in my dissertation defense: Dissertation Defense August 2002 from Dr. Edwin Hernandez Using Neural Networks and Machine Learning for Adaptive Networking in Wireless in the ‘508 and ‘417 Patents The patent uses Kalman Filters to predict users state, however we also disclose Neural Networks and other AI methods in the patent. RAMON : Rapid Mobile Network Emulation from Dr. Edwin Hernandez RAMON ENTREPRENEURIAL JOURNEY For years RAMON kept being used by researchers at the University of Florida. Around 2008, Dr. Edwin was working for Motorola Mobility as a Principal Staff Engineer and decided to bring back RAMON to a startup company. Byf2009, Dr. Edwin signed a licensing agreement with the University of Florida under a company called “RAPID MOBILE” for his own patents. In 2010, Dr. Hernandez confronted his employer, Motorola, after seeing a demonstration of an emulator device, that later was shown thru claim charts, implemented the ‘330 patent. Despite being a high-performing employee, Motorola terminated Dr. Hernandez contract abruptly. Day 1 of his hiring Dr. Edwin excluded his
Wireless Research
Wireless Research and Publications The Survey of Mobile Emulator and Wireless Research recites: “…… Emulator provides environment without modifications to the software and validates software solutions for ad hoc network. A field test will show rather the simulation work is going on right track or not and going from the simulator to the real thing directly to analyze the performance and compare the results of routing protocols and mobility models. Analyzing and choosing an appropriate emulator according to the given environment is a time-consuming process. …….. ” Source: M. J. Kropft et.al. “A survey on real world and emulation testbeds for mobile ad hoc networks,” IEEE TRIDENTCOM 2006. · The RAMON thesis recites: “… RAMON is a development platform that combines emulation and simulation to facilitate the analysis of performance bottlenecks in a quicker and more efficient matter. Additionally, RAMON recreates more realistic environments for wireless network protocols where attenuation, latency delay, and bandwidth can be modified as required by the experimenter. The second contribution is a predictive extension for Mobile IP using a Kalman filter. The forecasting of speed and trajectory allows the protocol to avoid late registration and improve performance at high speed…” While the Internet Mobility Protocol recites: “…We added two new entities to the protocol: the ghost-mobile node and ghost foreign agent. The entities preemptively react to the environment and allow much faster and quicker handoff. The predictable protocol improves the performance of Mobile IP … “ Mobile IP shows was used for Mobility Protocol as that was the most popular mobility protocol at the time, however the mobility aspects and methods remains the same. Some of the research papers and publications made in emulation and mobility protocols. Wireless Emulator MobileCAD Full list of Publications of Dr. Helal
Mobility Workx and Verizon Reach Agreement for Wireless Technologies.
By edwin in Licensing, Mobility Protocols, Simualtion Tag 4G, 5G, emulation, mobile testing, mobility, mobility emulation, propagation, Simulation, simulation of mobility, wireless certification, wireless testing Innovators in wireless certification, testing, and fast mobility handover WINTERS, Texas, September 22, 2021 (Newswire.com) – Last August, Mobility Workx, LLC and Verizon Wireless reached a licensing agreement and ended a four-year patent dispute over Mobility Workx’s wireless patent portfolio. Principals of Mobility Workx, Dr. Edwin Hernandez and Dr. Sumi Helal, were present at the settlement negotiation. The licensed patents were invented around 2002 as part of Dr. Hernandez’ doctoral research at the University of Florida that was directed by Dr. Helal at his Mobile Computing Lab. In early 2000s, Dr. Helal was the director of the Mobile Computing Lab where he directed the inception and creation of many innovative technologies that were envisioned decades before their realization into actual wireless networks and mobile computing devices that we have and use today on a daily basis. “We thereby deliver benefits to both licensors and licensees,” said Michael Machat, lead attorney for Mobility Workx. Some of the licensed patents provided a cost-effective solution for wireless handset testing using emulation. Others provided intelligent algorithms and methods to speed up handoff processing – a key requirement in modern wireless communication networks. Dr. Hernandez owns EGLA CORP – a technology company and runs its technology incubator, the EGLAVATOR, in Boca Raton, Florida. He is also founder and CEO of MEVIA, a Cloud-to-cable technology and platform as a service company. Dr. Helal is professor at the University of Florida and the founder of several startups including Mobility Workx, Rokiot USA, Spaceify Oy, Finland, Phoneomena, Inc., and Pervasa, Inc. The Mobility Workx’ portfolio is available for licensing in the areas of wireless certification, testing, and fast mobility handover for both 4G and 5G systems. For more information, consult Mobility’s web site (https://mobilityworkx.com) or send email to info@mobilityworkx.com