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Full-Text Articles in Electrical and Computer Engineering
P2pstm: A Peer-To-Peer Software Transactional Memory, Phil Pratt-Szeliga, Jim Fawcett
P2pstm: A Peer-To-Peer Software Transactional Memory, Phil Pratt-Szeliga, Jim Fawcett
Electrical Engineering and Computer Science - All Scholarship
Peer-to-Peer network topologies are such that there is no centralized server in a distributed system but rather each peer is part server and part client. This idea was originally popularized with peer-to-peer file sharing. If one were to distribute computation on a peer-to-peer network topology, consistency of shared data among peers is a problem. Software Transactional Memory (STM) is a lock free mechanism of assuring consistency of memory among threads of execution that has favorable performance over locked methods when the number of threads is large. This paper presents a method to use STM methods with a peer-to-peer network architecture …
Wireless Sensor Network Approach To Aeronautical Telemetry, Oluwasegun Babatunde Tinubi
Wireless Sensor Network Approach To Aeronautical Telemetry, Oluwasegun Babatunde Tinubi
Theses and Dissertations
Wireless sensor networks have become a rapidly growing research field in recent years. They are envisioned to have a wide range of applications in military, environmental and many other fields. We examine the performance of wireless sensor network applications to aeronautical telemetry. To date, test ranges have relied on a single telemetry ground station for the reception of packets from all air borne transmitters. We researched an alternate means of achieving this same goal with fewer resources. It is a well known fact that communication power and bandwidth are the most expensive commodities in wireless communications. The telemetry world is …
Meshscan: A Fast And Efficient Handoff Scheme For Ieee 802.11 Wireless Mesh Networks, Yin Chen
Meshscan: A Fast And Efficient Handoff Scheme For Ieee 802.11 Wireless Mesh Networks, Yin Chen
Masters
As a next generation network solution, Wireless Mesh Networks (WMN) provides fast Internet access to a large area, which is from university campus to city scale. In order to provide an uninterrupted Internet experience to a mobile client, a process called handoff is required to maintain the network connection from one Mesh Node (MN) to another MN. Ideally, handoff should be completely transparent to mobile users. A critical application like VoIP will require a handoff capability that transfers a call from one mesh node (MN) to another in less than 50 msec. However the current IEEE 802.11 standards do not …
Feasibility Of Using Passive Monitoring Techniques In Mesh Networks For The Support Of Routing, Chenzhe Zhang
Feasibility Of Using Passive Monitoring Techniques In Mesh Networks For The Support Of Routing, Chenzhe Zhang
Masters
In recent years, Wireless Mesh Networks (WMNs) have emerged as a promising solution to provide low cost access networks that extend Internet access and other networking services. Mesh routers form the backbone connectivity through cooperative routing in an often unstable wireless medium. Therefore, the techniques used to monitor and manage the performance of the wireless network are expected to play a significant role in providing the necessary performance metrics to help optimize the link performance in WMNs. This thesis initially presents an assessment of the correlation between passive monitoring and active probing techniques used for link performance measurement in single …
Dual-Use Of Compact Hf Radars For The Detection Of Mid- And Large-Size Vessels, Hugh Roarty, Don Barrick, Josh Kohut, Scott Glenn
Dual-Use Of Compact Hf Radars For The Detection Of Mid- And Large-Size Vessels, Hugh Roarty, Don Barrick, Josh Kohut, Scott Glenn
Turkish Journal of Electrical Engineering and Computer Sciences
This paper describes the development of the SeaSonde High Frequency Radar system into a dual-use application for the mapping of ocean surface currents and detection of ships at sea. This development entailed the creation of a new radar waveform that would permit this dual-use as well as a detection algorithm to identify the ships in the radar spectra. The detection algorithm utilizes two methods for calculating a background signal level: an infinite impulse response (IIR) filter and a two-dimensional median filter. These two methods are employed simultaneously with multiple length averaging times to maximize the number of detections. The initial …