@conference {360,
	title = {Dynamic rate adaptation in cognitive radio considering time-dependent channel access models},
	booktitle = {8th International Conference on Cognitive Radio Oriented Wireless Networks (CROWNCOM)},
	year = {2013},
	month = {July},
	address = {Washington DC, USA},
	abstract = {Recent studies showed that, in practical situations,
the primary user (PU) access to the channel is better modeled
as a time dependent random process. Taking this into account,
we address the optimal rate adaptation problem of a cognitive
radio (CR) link. A secondary user (SU) link detects an idle
channel and starts the transmission with the goal of transmitting
a given amount of data packets within a given time. During the
transmission, and taking into account frame retransmission, the
transmitter dynamically adapts the frames rate, from a finite
number of available rates. If the PU accesses the channel, the SU
immediately stops the transmission. The problem is formulated
as an episodic Markov decision process (MDP). We show that
selecting the best stationary policy (using the same rate for the
whole transmission) can perform close to optimal.},
	isbn = {978-1-936968-83-1},
	author = {{\'A}lvaro Gonzalo and P{\'e}rez, Jes{\'u}s}
}
