Digital Commons Network^™

Modeling And Analysis Of Cooperative Search Systems, Carlos A. Portilla

USF Tampa Graduate Theses and Dissertations

The analysis of performance gains arising from cueing in cooperative search

systems with autonomous vehicles has been studied using Continuous Time Markov

Chains; where the search time distributions are assumed to follow the exponential

distributions. This work proposes the use of Petri Nets to model and analyze these

systems. The Petri Net model considers two types of autonomous vehicles: a search-only

vehicle and n search-engage vehicles. Specific performance metrics are defined to

measure system’s performance. Through simulation, it is shown that the search time with

stationary targets and cues that provide exact target location follows a triangular

distribution. A methodology …

Improving The Energy Efficiency Of Ieee 802.3az Eee And Periodically Paused Switched Ethernet, Mehrgan Mostowfi

USF Tampa Graduate Theses and Dissertations

It is estimated that networked devices consumed about 150 TWh of electricity in 2006 in the

U.S. which has cost around $15 billion and contributed about 225 billion lbs of CO

2

to

greenhouse gas emissions. About 13.5% of this energy is consumed by network equipment such

as switches and routers.

This thesis addresses the energy consumption of Ethernet, and designs and evaluates

improvements on existing methods to reduce the energy consumption of Ethernet links and

switches.

Energy Efficient Ethernet (EEE) is an emerging IEEE 802.3 standard which allows Ethernet

links to sleep when idle. In this thesis, a performance …