Learn More
The Internet of Things (IoT) offers the promise of integrating the digital world of the Internet with the physical world in which we live. But realizing this promise necessitates a systematic approach to integrating the sensors, actuators, and information on which they operate into the Internet we know today. This paper reports the design and development of(More)
This paper reports the design and development of an HTML5-empowered Virtual Sensor Editor (VSE) over Internet of Things cloud. VSE is a scalable tool that allows users to design virtual sensors with user-defined dataflow logic, by visually aggregating existing sensors, either physical sensors or user-defined virtual sensors. VSE supports a real-time and(More)
Mobile devices have evolved to become computing platforms more similar to desktops and workstations than the cell phones and handsets of yesteryear. Unfortunately, today's mobile infrastructures are mirrors of the wired past. Devices, apps, and networks impact one another, but a systematic approach for allowing them to cooperate is currently missing. We(More)
—Commercial cellular networks emerged from the wired public switched telephone networks (PSTN) in an evolutionary manner. Market pressures fueled upgrades in bandwidth and functionality. Four decades later, these networks maintain historical artifacts from PSTN networks, and the artifacts work against the fundamental needs of today's wireless systems.(More)
The impact that widespread disasters have on communications systems has evolved over time - fueled by advancements in technology and cemented by societal adoption. As the use of IP-based communications systems, both wired and wireless, has become ubiquitous, we as a society have become dangerously dependent. We vest our banking and healthcare records in(More)
The Wireless Emergency Alert (WEA) service allows short text messages to be broadcast to all capable mobile devices in a specified geographic area. Although it enjoys nationwide reach, the current WEA service has limitations that impede its public acceptance. These limitations include imprecise geographical targeting of alerts, which reduces the alerts'(More)
Connected embedded systems in the realm of smart infrastructures comprise ubiquitous end-point devices supported by a communication infrastructure. Device, energy supply and network failures are a reality and provisioned communications could fail. Self-organization is a process where network devices cooperate with each other to restore network connectivity(More)
We apply an evolutionary strategies (ES) algorithm to the problem of designing modulation schemes used in wireless communication systems. The ES is used to optimize the digital symbol to analog signal mapping, called a constellation. Typical human-designed constellations are compared to the constellations produced by our algorithms in a simulated radio(More)
The Internet of Things (IoT) aims to integrate the digital world of the Internet with our encompassing physical world. However, existing IoT lacks to provide considerate services, meaning that sensors dynamically "collaborate" to provide context-aware federated sensor data. This paper reports our on-going work developing a sensor service federation and(More)