Browsing OSU - Electronic Theses and Dissertations by Author "Rahnavard, Nazanin"

Now showing items 1-10 of 10

    • Adaptive Clustering Algorithm for Wireless Sensor Networks 

      Boloorchi Tabrizi, Alireza (Oklahoma State University, 2011-12-01)
      In the context of Wireless Sensor Networks (WSN), the interactions of the sensors in order to provide service to a specific job is a significant issue. Services provided by WSNs include collecting data from the environment ...

    • Compressive Spectrum Sensing for Cognitive Radio Networks 

      Nakarmi, Ukash (Oklahoma State University, 2011-12-01)
      Spectrum sensing is the most important part in cognitive radios. Wideband spectrum sensing requires high speed and large data samples. It makes sampling process challenging and expensive. In this thesis, we propose wideband ...

    • Distributed Calibration of Wireless Multimedia Sensor Networks 

      Kadam, Rohit Shrikant (Oklahoma State University, 2010-12-01)
      Wireless Multimedia Sensor Networks (WMSNs) are gaining popularity among researchers over the past few years. Knowledge of the geographic locations of the sensor nodes is very important in such sensor networks. Location ...

    • Efficient Broadcast in Mobile Adhoc Networks Utilizing Rateless Coding 

      Pitts, Jason Douglas (Oklahoma State University, 2009-05-01)
      This paper presents a novel efficient broadcast protocol for mobile ad hoc networks referred to as mobile adaptive probabilistic broadcast (MAPcast). MAPcast integrates application-layer rateless coding with adaptive ...

    • Energy-efficient Data Aggregation in Wireless Sensor Networks Using Probabilistic Sleep Scheduling and Compressed Sensing 

      Almuhana, Aram (Oklahoma State University, 2013-05-01)
      Each node in a wireless sensor network (WSN) is an inexpensive and small device with a limited source of energy. In many applications related to monitoring of physical phenomenon and natural signals, there is spatio-temporal ...

    • Enhanced rateless coding and compressive sensing for efficient data/multimedia transmission and storage in AD-HOC and sensor networks 

      Talari, Ali (2012-12)
      In this dissertation, we investigate the theory and applications of the novel class of FEC codes called rateless or fountain codes in video transmission and wireless sensor networks (WSN). First, we investigate the rateless ...

    • Human Vision Models of Perceptual Image Distortions 

      Imade, Osayamen Osaretin (Oklahoma State University, 2010-07-01)
      Digital media's prevalence in today's society is placing an increasing strain on the technology to provide, transmit and store these contents. The demand for higher quality content in digital media has led to drastic ...

    • Outbound Network Traffic Monitring 

      Algedir, Amal Ali (Oklahoma State University, 2012-05-01)
      The objective of this research is to begin the task of identifying the purpose of outbound traffic of a computer network. In this study, resources available on the Internet were used to find the probable location and the ...

    • Sparse signal recovery and detection utilizing side information 

      Wang, Sheng (2017-10)
      In this dissertation, we investigate the signal recovery and detection task for compressive sensing and wireless spectrum sensing. First, we investigate the compressive sensing task for the difference frames of videos. ...

    • Unequal Compressive Imaging 

      Mekisso, Betelhem Mateos (Oklahoma State University, 2011-07-01)
      Recently, novel compressive sensing (CS) techniques have been employed to concurrently perform compression and image sampling. Since an image has sparse representation in some proper transform basis, such as discrete cosine ...