Title :
Flexible and Dynamic Power Allocation in Broadband Multi-Beam Satellites
Author :
Srivastava, Nitish Kumar ; Chaturvedi, A.K.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, Kanpur, India
Abstract :
For multi-beam broadband satellites operating at 10 GHz and above frequencies, rain attenuation is the dominant impairment factor. Using a stochastic model for rain attenuation prediction and a greedy approach, dynamic power allocation has been recently shown to increase the number of users served than the static technique. This letter proposes a new dynamic power allocation algorithm the novelty of which lies in treating users with similar power requirement as a group, instead of individuals. Thus, without resorting to exhaustive search we are able to serve more number of users than the existing technique.
Keywords :
broadband antennas; microwave antennas; multibeam antennas; rain; satellite antennas; dominant impairment factor; dynamic power allocation algorithm; frequency 10 GHz; greedy approach; multi beam broadband satellites; rain attenuation prediction; stochastic model; Attenuation; Heuristic algorithms; Rain; Resource management; Satellite broadcasting; Satellites; Stochastic processes; Multi-beam antennas; rain attenuation; satellite communications;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.080113.130615