Search Results - wireless & networking

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  1. BackgroundToday’s wireless sensor networks (WSNs) strongly rely on WiFi technology or Zigbee radio standards for deployment. These standards inherently require control timing protocols to complete operations. Although alternative protocols, such as Carrier Sensing Multiple Access (CSMA) address the issue of synchronization and control timing...
    Published: 3/23/2018
  2. BackgroundNumerous countries worldwide are contaminated today with unexploded bombs, resulting in about 15,000 to 20,000 deaths every year and severely injuring countless more. Approximately 80% of these casualties are civilian, with children as the most affected age group. Further, these landmines render terrain unusable to local populations for ...
    Published: 3/16/2018
  3. BackgroundReadily accessible healthcare is an essential component of social functioning for the deaf and hard-of-hearing population in the United States. Frequently, health care is not easily accessible by this population. The consequences of this are most serious in emergency medical scenarios where information must be conveyed quickly and accur...
    Published: 3/8/2018
  4. BackgroundAutonomous vehicles require intelligent autonomous intersection management for safe and efficient operation. Given the uncertainty in vehicle trajectory, intersection management techniques must consider a safety buffer among the vehicles, which must also account for the network and computational delay. However, modeling the worst-case c...
    Published: 2/26/2018
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  5. Biometric security systems that utilize fingerprints, electroencephalogram (EEG), and face recognitions are vulnerable to cyberattacks. With personal and confidential information at stake, it is vital that these systems are complex and able to resist data breakage. One form of protection is applying machine learning to these systems. Machine Learn...
    Published: 2/13/2018
  6. Electromagnetic Band-Gaps (EBGs) have been extensively used in low-profile antenna designs because of their in-phase reflection characteristics in certain frequency band(s). EBGs have also been used as attractive ground planes and in checkerboard surface variations. The incident waves on checkerboard patches induce current densities whose amplitud...
    Published: 12/28/2017
  7. High Impedance Surfaces (HIS) are one of the breakthroughs that emerged in the modern antenna design area in 1999. HISs are ideal candidates as antenna ground planes because of their near perfect magnetic ground conductor (PMC) behavior at particular ranges. However, current rectangular designs have a limited performance and lack efficiency in the ...
    Published: 12/22/2017
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  8. Pervasive Brain-Mobile Interfacing (BMoI) is a new trend that has significantly increased within this decade through the creation of wearable dry contact electroencephalogram (EEG) sensors. Unfortunately, current commercially wearable brain sensors have low accuracy, power limitations and computational restraint based from mobile devices. These lim...
    Published: 11/22/2017
  9. In the most recent decades, material characterization has evolved into the microscopic scanning field. Modern sensors are capable of applying electromagnetic radiation to obtain characterization data on set materials. However, current technologies require rotating sensors or sample adjustments. This causes problems in measurements because it risks ...
    Published: 10/26/2017
  10. Devices that continuously monitor cardiac activity in free living conditions are being integrated into everyday life. Cardiac sensors are an essential advancement for disease diagnostics and evaluation of post-operative progress. Also, these observations are useful for overall physical health and well-being. With today’s technology, smartpho...
    Published: 9/18/2017

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