Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cognitive Power Control Under Correlated Fading and Primary-Link CSI   We consider the cognitive power control problem of maximizing the secondary
throughput under an outage probability constraint on a constant-power
constant-rate primary link. We assume a temporally correlated primary channel
with two types of feedback: perfect delayed channel state information (CSI) and
one-bit automatic repeat request (ARQ). We use channel correlation to enhance
the primary and secondary throughput via exploiting the CSI feedback to predict
the future primary channel gain. We provide a numerical solution for the power
control optimization problem under delayed CSI. In order to make the solution
tractable under ARQ-CSI, we re-formulate the cognitive power control problem as
the maximization of the instantaneous weighted sum of primary and secondary
throughput. We propose a greedy ARQ-CSI algorithm that is shown to achieve an
average throughput comparable to that attained under the delayed-CSI algorithm,
which we solve optimally.

27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph