Title :
Multi-Channel Opportunistic Access Based on Primary ARQ Messages Overhearing
Author :
Lapiccirella, Fabio E. ; Liu, Keqin ; Ding, Zhi
Author_Institution :
Electr. & Comput. Eng., Univ. of California, Davis, CA, USA
Abstract :
We consider an opportunistic channel access problem over multiple primary bands. We exploit primary ACK/NAK packets overhearing to overlay secondary communications on top of permanently busy primary channels. Through the theory of multi-armed restless bandit processes (MARB), we prove optimality of the myopic policy with a simple structure that does not require channel state-transition probabilities knowledge at the secondary users under certain conditions.
Keywords :
automatic repeat request; multi-access systems; probability; wireless channels; MARB theory; active primary channel; channel state transition probability; multiarmed restless bandit theory; multichannel opportunistic access; multiple primary frequency band; myopic policy; primary ACK/NAK packets; primary ARQ message overhearing; secondary users; Cognitive radio; Equations; IEEE Communications Society; Interference; Markov processes; Receivers; Sensors;
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
DOI :
10.1109/icc.2011.5963326