Title :
A Self-Organized Spectrum Assignment Strategy in Next Generation OFDMA Networks Providing Secondary Spectrum Access
Author :
Bernardo, Francisco ; Agustí, Ramon ; Pérez-Romero, Jordi ; Sallent, Oriol
Author_Institution :
Signal Theor. & Commun. Dept., Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
This paper proposes a self-organized spectrum assignment strategy in the context of next generation multicell orthogonal frequency division multiple access networks. The proposed strategy is able to dynamically find spectrum assignments per cell depending on the spatial distribution of the users over the scenario, opening new spectrum access opportunities for secondary spectrum usage. Reinforcement learning methodology has been employed to implement the strategy, which compared with other fixed and dynamic spectrum assignment strategies shows the best tradeoff between spectral efficiency and quality-of-service while releases spectrum in large geographical areas.
Keywords :
cellular radio; cognitive radio; frequency division multiple access; learning (artificial intelligence); quality of service; radio spectrum management; telecommunication computing; next generation multicell orthogonal frequency division multiple access networks; quality of service; reinforcement learning methodology; secondary spectrum access; secondary spectrum usage; selforganized spectrum assignment strategy; spectral efficiency; Cognitive radio; Communications Society; Context; Councils; Frequency conversion; Learning; Next generation networking; Quality of service; Radio spectrum management; Technological innovation;
Conference_Titel :
Communications, 2009. ICC '09. IEEE International Conference on
Conference_Location :
Dresden
Print_ISBN :
978-1-4244-3435-0
Electronic_ISBN :
1938-1883
DOI :
10.1109/ICC.2009.5198667