Decentralizing multi-operator cognitive radio resource allocation: An asymptotic analysis

Tohidi, Ehsan; Gesbert, David; Bazco-Nogueras, Antonio; de Kerret, Paul
ICC 2020, IEEE International Conference on Communications Workshops, 7-11 June 2020, Dublin, Ireland (Virtual Conference)

We address the problem of resource allocation (RA) for spectrum underlay in a cognitive radio (CR) communication system with multiple secondary operators sharing resource with an incumbent primary operator. The multiple secondary operator RA problem is well known to be especially challenging because of the inter-operator coupling constraints arising in the optimization problem, which render impractical inter-operator information
exchange necessary. In this paper, we consider a satellite setting for multi-operator CR. In the CR maturation regime, i.e., the period in which the secondary subscriber density is growing yet remains much below that of incumbent users, we show that in fact the inter-operator mutual constraints can be neglected, thus making distributed (across secondary operators) optimization possible. Furthermore, we establish analytically that the mutual
constraints asymptotically vanish with the primary user density.

DOI
Type:
Conférence
City:
Dublin
Date:
2020-06-07
Department:
Systèmes de Communication
Eurecom Ref:
6202
Copyright:
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