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Theses

2011

Wireless

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Wireless Body Area Network Platform Utilizing Energy-Efficient Routing Of Physiological Data, Alvaro Prieto Sep 2011

Wireless Body Area Network Platform Utilizing Energy-Efficient Routing Of Physiological Data, Alvaro Prieto

Theses

Wireless Body Area Networks (WBANs) consist of several wireless sensors located around a human body. These sensors may measure several biological signals, movement, and temperature. Due to major improvements in power consumption and constantly shrinking devices, WBANs are becoming ubiquitous. As a side effect present because of the small form factor of these devices, the battery size is limited. While the sensors themselves may be extremely power efficient, all of the measured data must be transmitted over a much less efficient wireless link. One benefit of WBANs is that they rarely include more than a dozen wireless devices over a …


Experimental Investigation Into Novel Methods Of Reliable And Secure On-Body Communications With Low System Overheads, Jeffrey Wilczewski May 2011

Experimental Investigation Into Novel Methods Of Reliable And Secure On-Body Communications With Low System Overheads, Jeffrey Wilczewski

Theses

Until recently the concept of wearable biosensors for purposes of medical monitoring was restricted to "wired" sensor applications. Recent advances in electronics and wireless communications have made the possibility of removing the "wire" from sensor applications a possibility. These advances have led to the development of small scale, wearable, sensing and communication platforms that can be placed on the human body creating the foundation for a Body Sensor Network (BSN). Body Sensor Networks aim to remove the restrictions that traditional wired sensors impose. The anticipation is that BSNs will permit the monitoring of physiological signals in any environment without limitation, …


Cellular Network Monitoring System Based On Subscriber Units, Victor Silva Jan 2011

Cellular Network Monitoring System Based On Subscriber Units, Victor Silva

Theses

The normal approach to assess signal quality parameters in a wireless network requires performing what is known as a drive test. A drive test consists on driving a vehicle equipped with a wireless measurement toll box around the area of interest, in order to take measures of several wireless signal parameters. Drive testing is a time consuming activity often affected by external factors such as vehicular traffic congestion and others. The slowness of the process makes this technique impractical when the goal is to measure the impact caused by minor changes on the network; when you need something like a …