A New Framework for Cognitive Medium Access Control: POSG Approach

Details A New Framework for Cognitive Medium Access Control: POSG Approach A New Framework for Cognitive Medium Access Control: POSG Approach

2010-03-14

arxiv.org/abs/1003.2813v2

Computer Science

Computer Science and Game Theory

This paper has been withdrawn by the author due to minor contributions

Scientific paper

In this paper, we propose a new analytical framework to solve medium access problem for secondary users (SUs) in cognitive radio networks. Partially Observable Stochastic Games (POSG) and Decentralized Markov Decision Process (Dec-POMDP) are two multi-agent Markovian decision processes which are used to present a solution. A primary network with two SUs is considered as an example to demonstrate our proposed framework. Two different scenarios are assumed. In the first scenario, SUs compete to acquire the licensed channel which is modeled using POSG framework. In the second one, SUs cooperate to access channel for which the solution is based on Dec-POMDP. Besides, the dominant strategy for both of the above mentioned scenarios is presented for a three slot horizon length.

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