On the impact of the observation strategy in a POMDP-based framework for spectrum selection
作者： A. Raschella , J. Perez-Romero , O. Sallent , A. Umbert
DOI: 10.1109/PIMRC.2013.6666569
关键词: Computer science 、 State (computer science) 、 Context (language use) 、 Interference (wave propagation) 、 Simulation 、 Selection (genetic algorithm) 、 Markov process 、 Key (cryptography) 、 Cognitive radio 、 Partially observable Markov decision process 、 Mathematical optimization
摘要: Dynamic Spectrum Access, based on the Cognitive Radio (CR) paradigm, is a promising solution to improve currently inefficient spectrum utilization. In this respect, paper deals with selection problem when number of radio links has be established in CR network. A novel strategy Partially Observable Markov Decision Process (POMDP) proposed combining partial observations interference state together statistical characterization dynamics. context, use an efficient observation key element account for trade-off between achieved performance and measurement requirements. For that purpose, aim propose evaluate different policies POMDP-based framework. Results show framework able achieve very similar than operating under full knowledge requiring much less associated signaling.
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