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A clean SWS stuffing method (Hot Stuffing) has been developed for improving the heat-dissipation capability of a helix traveling-wave-tube slow-wave structure (SWS). This method has been compared with the traditional method of cold-stuffing. Special fixtures have been designed and feasibility of this method has been verified by experimental tests on SWSs using tungsten-rhenium helices and APBN support...
Topology Control (TC) algorithms are generally applied to tactical network environments to create or maintain connectivity graphs with specific topological properties. In the context of this work, network topology defines the connectivity and link properties between nodes in the network. While protocols in the communications stack are traditionally designed to adapt to different traffic demands and...
Fast changing radio channels in a CDMA based cellular network have detrimental effects on the control efforts required to regulate the Signal to Interference plus Noise ratio (SINR) to the desired level, especially for highly mobile terminals (MTs). The motivation behind introducing a prediction-based power control algorithm is to meet the problems associated with rapid changes in the channel gain...
In the reverse link of a wireless cellular network, power control is used to ensure that each link achieves its target signal-to-interference-plus-noise ratio (SINR), while minimizing the interference to adjacent cells. In cellular systems using direct-sequence code-division multiple access (CDMA), the SINR depends inversely on the power assigned to the other users in the system, creating a nonlinear...
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