2026-04-19T19:16:09Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1024262026-01-21T06:58:00Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Bousia, Alexandra author Kartsakli, Elli author Antonopoulos, Angelos author Alonso Zárate, Luis Gonzaga author Verikoukis, Christos author 2016-11-01 ©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The emerging data traffic demand has caused a massive deployment of network infrastructure, including Base Stations (BSs) and Small Cells (SCs), leading to increased energy consumption and expenditures. However, the network underutilization during low traffic periods enables the Mobile Network Operators (MNOs) to save energy by having their traffic served by third party SCs, thus being able to switch off their BSs. In this paper, we propose a novel market approach to foster the opportunistic utilization of the unexploited SCs capacity, where the MNOs, instead of requesting the maximum capacity to meet their highest traffic expectations, offer a set of bids requesting different resources from the third party SCs at lower costs. Motivated by the conflicting financial interests of the MNOs and the third party, the restricted capacity of the SCs that is not adequate to carry the whole traffic in multi-operator scenarios, and the necessity for energy efficient solutions, we introduce a combinatorial auction framework, which includes i) a bidding strategy, ii) a resource allocation scheme, and iii) a pricing rule. We propose a multiobjective framework as an energy and cost efficient solution for the resource allocation problem, and we provide extensive analytical and experimental results to estimate the potential energy and cost savings that can be achieved. In addition, we investigate the conditions under which the MNOs and the third party companies should take part in the proposed auction. Peer Reviewed Postprint (author's final draft) Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica Àrees temàtiques de la UPC::Energies::Eficiència energètica Game theory Computer networks Energy consumption Auction Energy efficiency Game theory Green networking Heterogeneous networks (HetNets) Multiobjective optimization Offloading Switching off Jocs, Teoria de Ordinadors, Xarxes d' Energia -- Consum Multiobjective auction-based switching-off scheme in heterogeneous networks: to bid or not to bid?