Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"Radio interference"”.
-
A study of radio interference from the electric ignition of internal combustion motors
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1938.
-
Capacity Characterization of Multi-Hop Wireless Networks- A Cross Layer Approach
… the capacity of multi-hop wireless networks is radio interference. As a result, researchers have proposed increasingly realistic interference models that aim to capture the physical characteristics of radio signals. Some of the commonly used simple models that capture radio interference are …
-
WiFi ad-hoc message propagation over GPRS networks
… lengths, high retransmission rates (due to radio interference, obstacles, and packet collisions), and unpredictable node relocation. For these reasons, MANETs tend to have unstable topologies. In this project, we present a solution for exchanging messages in MANETs formed by WiFi-enabled …
-
Design And Development Of An Autonomous Radar Receiver For The Detection Of Ultra High Energy Cosmic Rays
… using an analog signal chain. Subject to less radio interference, the remote stations add stereoscopic measurement capabilities that theoretically allow unique determination of cosmic ray geometry and core location. An FPGA is used as a distributed data processing node within the project. The …
-
Methods of Aircraft Charge Control During Flight
… charge can impact lightning initiation, cause radio interference, or make it difficult for research aircraft to make accurate measurements of atmospheric electric fields. Two experimental campaigns are described in this thesis that relate to the control of net electrical charge on aircraft, and …
-
Refraction interference elimination employing smart arrays at VHF
Radio interference from the Middle East is one of the most significant problems plaguing the local radio services in Cyprus today. The issue is particularly noticeable on the highway, where it affects in-car tuners in all coastal areas of the island when the weather is hot and humid. In this work, …
-
An Extensible Information Dissemination Scheme over the Optimized Link State Routing Protocol for Mobile Ad Hoc Networks
… of service to registered users in presence of radio interference and other delays caused by Multipoint Relay Nodes (MPR) message forwarding in OLSR.
-
Synthesis Imaging with Vector Sensor Arrays
Radio astronomy observations at frequencies below 10 MHz could provide valuable science, such as measuring the cosmic dark age signal in the redshifted 21-cm hydrogen absorption line, detecting exoplanetary auroral emissions which lead to inferences about magnetic fields and atmospheres, and …
-
Wireless Body Area Networks: Efficient Coexistence by Interference Management and Avoidance
… a reliable WBAN needs to be highly immune to interference. Based on the IEEE 802.15.6 standard devised for WBANs, nodes in a single WBAN can avoid interference by using techniques such as time division multiple access (TDMA). In fact, the social nature of these networks and their high mobility …
-
Wireless Body Area Networks: Efficient Coexistence by Interference Management and Avoidance
… a reliable WBAN needs to be highly immune to interference. Based on the IEEE 802.15.6 standard devised for WBANs, nodes in a single WBAN can avoid interference by using techniques such as time division multiple access (TDMA). In fact, the social nature of these networks and their high mobility …
-
Characterization of the measurement uncertainty for the electromagnetic conducted and radiated emission test
… in its intended environment with causing undue interference or being unduly affected by it. The requirement for non-interference has been known for many years but it is only now with the introduction of legislation that we are seeing a major growth in demand for testing. The USA with its FCC …
-
Distributed Scheduling and Delay-Throughput Optimization in Wireless Networks under the Physical Interference Model
… main challenges for optimizing them arises from radio interference, an inherent factor in wireless networks.<br />Graph-based interference models represent a large class of interference models widely used for the study of wireless networks,<br />and suffer from the weakness of over-simplifying …
-
Localizing Jammers in Wireless Networks
… and keeping sending packets, or by emitting radio signals to a particular channel. To cope with jamming attacks, in this dissertation, we focus on developing mechanisms to localize jammers. We examine how jammers affect networks in terms of signal strength, nodes' communication range, and …