scholarly journals Combined subcarrier switch off and power loading for 80 MHz bandwidth WLANs

2011 ◽  
Author(s):  
Oscar Punal ◽  
James Gross
Keyword(s):  
Power Loading

scholarly journals Bit and power loading for optical IM/DD transmission

2011 ◽  
Author(s):  
Henning Paul ◽  
Abdulamir Ali ◽  
Jochen Leibrich ◽  
Karl-Dirk Kammeyer ◽  
Werner Rosenkranz
Keyword(s):  
Power Loading

Design, Fabrication and Flight Testing of a Surveillance UAV

2015 ◽  
Vol 1115 ◽  
pp. 450-453 ◽  
Author(s):  
Moumen Idres ◽  
Burhani Makame ◽  
Bala Nabil Ahmad ◽  
Saleh Naji ◽  
Ahmad Safiuddin
Keyword(s):  
Design Process ◽  
Low Cost ◽  
Flight Test ◽  
Wing Loading ◽  
Rescue Operation ◽  
Low Weight ◽  
Carbon Rods ◽  
Power Loading ◽  
Final Design ◽  
Aerial Vehicle

Unmanned Aerial Vehicle (UAV) is becoming increasingly popular because it can perform variety of functions. These functions include surveillance, reconnaissance, monitoring, data collection and rescue operation. The purpose of this work is to design, fabricate and fly a low weight, low cost, small size UAV for a surveillance mission. The design is carried out based on Advanced Aircraft Analysis (AAA) software. The design process starts with the design specifications for a typical surveillance mission. Aircraft weight, wing loading and power loading were estimated in performance sizing process. Geometry was estimated using preliminary sizing. Aerodynamics of the aircraft was determined, which enabled the performance and stability to be analysed. If the desired performance is not achieved, the sizing is readjusted until a final design is reached. The aircraft was manufactured using foam, carbon rods, and fibreglass. The aircraft successfully flew at the first trial flight. This was followed by a successful flight with aerial photography. Keywords: UAV, design process, fabrication process, composite structure, flight test

scholarly journals Energy-Efficient Power Loading for OFDM-Based Cognitive Radio Systems With Channel Uncertainties

2015 ◽  
Vol 64 (6) ◽  
pp. 2672-2677 ◽  
Author(s):  
Ebrahim Bedeer ◽  
Osama Amin ◽  
Octavia A. Dobre ◽  
Mohamed H. Ahmed ◽  
Kareem E. Baddour
Keyword(s):  
Cognitive Radio ◽  
Energy Efficient ◽  
Cognitive Radio Systems ◽  
Power Loading ◽  
Radio Systems ◽  
Efficient Power ◽  
Channel Uncertainties
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