Cognitive Radio; Cognitive Satellite; Satellite Communications; Power Allocation; Rate Allocation; Fairness; Multi Objective Optimization; Pareto Optimal
Abstract :
[en] In this paper, we consider the cognitive satellite uplink where satellite terminals reuse frequency bands of Fixed-Service (FS) terrestrial microwave links which are the incumbent
users in the Ka 27.5-29.5 GHz band. In this scenario, the transmitted power of the cognitive satellite terminals has to be controlled so as to satisfy the interference constraints imposed by the incumbent FS receivers. We investigate and analyze a set of optimization frameworks for the power and rate allocation problem in the considered cognitive satellite scenario. The main
objective is to shed some light on this rather unexplored scenario and demonstrate feasibility of the terrestrial-satellite co-existence. In particular, we formulate a multi-objective optimization problem where the rates of the satellite terminals form the objective vector and derive a general iterative framework which provides a Pareto-optimal solution. Next, we transform the multi-objective optimization problem into different single-objective optimization problems, focusing on popular figures of merit such as the sumrate or the rate fairness. Supporting results based on numerical simulations are provided which compare the different proposed
approaches.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Lagunas, Eva ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Maleki, Sina ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Chatzinotas, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Soltanalian, Mojtaba
Perez-Neira, Ana I.
Ottersten, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
yes
Language :
English
Title :
Power and Rate Allocation in Cognitive Satellite Uplink Networks
Publication date :
2016
Event name :
IEEE International Conference on Communications, ICC 2016
Event organizer :
IEEE
Event place :
Kuala Lumpur, Malaysia
Event date :
23-05-2016 to 27-05-2016
Audience :
International
Main work title :
IEEE International Conference on Communications, ICC 2016