Game-Theoretic Resource Allocation for Intercell Device-to-Device Communication Underlaying Cellular Network

Device-to-Device (D2D) communication is an emerging technology that has been introduced as a beneficial complement of cellular infrastructure. Allocating resources to the D2D link, however, raises an enormous challenge to the co-existing D2D and cellular communications due to the mutual interference. While there have been many resource allocation solutions proposed for D2D under laying cellular network, they have primarily focused on the intracell scenario while leaving the intercell settings untouched. In this paper, we address the resource allocation problem for intercell D2D communication under laying cellular network. Unlike most of prior works allocating resource in a single cell, we consider the scenario that D2D link locates in the common area of two neigh boring cells. We formulate the problem by developing a Cournot competition game, in which the base stations (BSs) are modeled as players to compete for resource supply quota from D2D demand under three dedicated cases. Our analysis and numerical results show that the the derived resource allocation solution is an equilibrium, thus offering a global insight into resource configurations of two cells.