Browsing by Subject "Adaptive modulation"
Now showing items 1-2 of 2
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Energy allocation optimization for AF multi-hop in a cognitive radio system
( Elsevier B.V. , 2018 , Article)In this paper, novel optimal energy allocation schemes for the secondary users in an amplify-and-forward multi-hop underlay cognitive network are proposed. The optimization problem is formulated as a maximization of the ... -
On the capacity of cooperative diversity systems with adaptive modulation
( IEEE , 2005 , Conference Paper)In recent years, cooperative diversity systems have gained increased attention in the literature as a new way of combating the effect of signal fading. In this paper, we investigate the performance of these systems when ...