Optimal Virtualized Inter-Tenant Resource Sharing for Device-to-Device Communications in 5G Networks

Abstract

Device-to-Device (D2D) communication is expected to enable a number of new services and applications in future mobile networks and has attracted significant research interest over the last few years. Remarkably, little attention has been placed on the issue of D2D communication for users belonging to different operators. In this paper, we focus on this aspect for D2D users that belong to different tenants (virtual network operators), assuming virtualized and programmable future 5G wireless networks. Under the assumption of a cross-tenant orchestrator, we show that significant gains can be achieved in terms of network performance by optimizing resource sharing from the different tenants, i.e., slices of the substrate physical network topology. To this end, a sum-rate optimization framework is proposed for optimal sharing of the virtualized resources. Via a wide site of numerical investigations, we prove the efficacy of the proposed solution and the achievable gains compared to legacy approaches.

Coded Caching Clusters with Device-to-Device Communications

“…Further, we study the potential benefits of caching from an operator's point of view. For all the cases in this section, we fix m = 100, r = 1, v = 20, Γ BS = 3.76 [49] and Γ D2D = 4 [49], while σ is varied. The user arrival rate λ = 1, if not otherwise stated.…”

Integration of D2D, Network Slicing, and MEC in 5G Cellular Networks: Survey and Challenges

“…[140] verified that using virtualization for resource optimization can improve the system performance and throughput. Further, [139] proved better capacity and optimizing the sum rate when D2D users are related to multiple operators. [143] studies the effect of resource aggregation in a virtualized common pool for D2D receivers and transmitters so that efficient resources can be allocated for available for D2D systems.…”

Sharing Distributed and Heterogeneous Resources toward End-to-End 5G Networks: A Comprehensive Survey and a Taxonomy

“…In order to cope with this challenge, Gang and Friderikos [131] propose optimal and near-optimal interslice sharing between tenants. For instance, Vlachos et al [133] reinforce sharing models that result in better resource utilization, with a specific focus on so-called cross-slice coordinator, which is presented as an extension to the SDN/NFV framework.…”

“…Classification of Sharing Techniques [24,25,30-32,62,73,76,78,80-83,88,95,98,105,124,126,127,129-138] Software defined networking [24,25,30-32,62,76,78,80,82,83,88,98,124,126,127,130-138] Resource brokering[24,30,31,129,133,139] Network slicing[80][81][82][83]124,126,127,129,133,[135][136][137][138][140][141][142] …”