Scott Pudlewski, Ph.D.
Ph.D. in Electrical Engineering (2012)
Education
- Ph.D. in Electrical Engineering - University at Buffalo, SUNY (2012)
- M.S. in Electrical Engineering - University at Buffalo, SUNY (2010)
- B.S. in Electrical Engineering - Rochester Institute of Technology (2008)
Research Interests
Scott Pudlewski received his Ph.D. in Electrical Engineering from the University at Buffalo, The State University of New York (SUNY) in April 2012, working in the Wireless Networks and Embedded Systems Laboratory under Professor Tommaso Melodia. His doctoral research focused on compressed sensing for video encoding and transmission, cooperative communications in wireless multimedia sensor networks using compressed sensing, video distortion based networking, and wireless multimedia sensor networks in general. He successfully defended his Ph.D. thesis titled “Compressed-sensing-based Video Streaming in Wireless Multimedia Sensor Networks” on April 20th, 2012. Scott also received his M.S. in Electrical Engineering from the University at Buffalo in 2010, and his B.S. in Electrical Engineering from the Rochester Institute of Technology in 2008. He is the recipient of the SAP America Scholarship in 2008.
Publications
2020
Journals and Magazines
Conference Papers
Networks of Unmanned Aerial Vehicles (UAVs), composed of hundreds, possibly thousands of highly mobile and wirelessly connected flying drones will play a vital role in future Internet of Things (IoT) and 5G networks. However, how to control UAV networks in an automated and scalable fashion in distributed, interference-prone, and potentially adversarial environments is still an open research problem. This article introduces SwarmControl, a new software-defined control framework for UAV wireless networks based on distributed optimization principles. In essence, SwarmControl provides the Network Operator (NO) with a unified centralized abstraction of the networking and flight control functionalities. High-level control directives are then automatically decomposed and converted into distributed network control actions that are executed through programmable software-radio protocol stacks. SwarmControl (i) constructs a network control problem representation of the directives of the NO; (ii) decomposes it into a set of distributed sub-problems; and (iii) automatically generates numerical solution algorithms to be executed at individual UAVs.We present a prototype of an SDR-based, fully reconfigurable UAV network platform that implements the proposed control framework, based on which we assess the effectiveness and flexibility of SwarmControl with extensive flight experiments. Results indicate that the SwarmControl framework enables swift reconfiguration of the network control functionalities, and it can achieve an average throughput gain of 159% compared to the state-of-the-art solutions.
Link2018
Journals and Magazines
Conference Papers
2017
Journals and Magazines
2015
Journals and Magazines
2013
Journals and Magazines
Conference Papers
2012
Conference Papers
2011
Journals and Magazines
Conference Papers
2010
Journals and Magazines
The availability of inexpensive CMOS cameras and microphones that can ubiquitously capture multimedia content from the environment is fostering the development of wireless multimedia sensor networks (WMSNs), i.e., distributed systems of wirelessly networked devices that can retrieve video and audio streams, still images, and scalar sensor data. A new cross-layer rate control scheme for WMSNs is introduced in this paper with a twofold objective: (i) maximize the video quality of each individual video stream; (ii) maintain fairness in the domain of video quality between different video streams. The rate control scheme is based on analytical and empirical models of video distortion and consists of a new cross-layer control algorithm that jointly regulates the end-to-end data rate, the video quality, and the strength of the channel coding at the physical layer. The end-to-end data rate is regulated to avoid congestion while maintaining fairness in the domain of video quality rather than data rate. Once the end-to-end data rate has been determined, the sender adjusts the video encoder rate and the channel encoder rate based on the overall rate and the current channel quality, with the objective of minimizing the distortion of the received video. Simulations show that the proposed algorithm considerably improves the received video quality with respect to state-of-the art rate control algorithms, without sacrificing on fairness.
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