Abstract

VESGA FERREIRA, Juan Carlos; GRANADOS ACUNA, Gerardo  and  VESGA BARRERA, José Antonio. Bandwidth optimization in BPL power lines using nucleolus and max-min fairness techniques. Rev. ing. univ. Medellín [online]. 2019, vol.18, n.34, pp.165-180. ISSN 1692-3324.  https://doi.org/10.22395/rium.v18n34a10.

BPL power lines (Broadband Power Line) run under the HomePlug AV (HPAV) standard which uses the technologies CSMA/CA and TDMA as a mechanism of access to the medium, in which CSMA/CA is intended for the transmission of data packets and TDMA is used for the transmission of voice and video packets, in order to offer adequate levels of QoS. However, notwithstanding that the HPAV can reach high transfer rates, it lacks the adequate bandwidth (AB) allocation mechanism, which in turn interferes significantly with the network’s performance as the number of users rise due to the fact that only one node can transmit at once. In line with the raised above and taking into account that a BPL network can be represented as a cooperative game with transferable utilities (UT), the present paper proposes the use of two equitable bandwidth allocation techniques: nucleolus and max-min fairness, which are part of the cooperative game theory. In the comparison of the nucleolus y max-min fairness techniques as an strategy for resource allocation it was found that the latter produces the best results. Furthermore, it was made evident that game theory can be regarded as a groundbreaking strategy for the optimization of resources in a LAN network on BPL.

Keywords : HomePlug; nucleolus; max-min fairness; game theory; BPL Power Lines.

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