Arquitetura Heterogênea com Gerenciamento da QoE e Suporte a Handover Transparente através de um Sistema Fuzzy-Genético

• Diego dos Passos Silva UFPA
• José Jaílton Ferreira Júnior UFPA
• Madson Bruno Silva Coelho UFPA
• Kelvin Lopes Dias UFPA

Abstract

This article proposes an architecture for the next generation networks to provide both QoE and seamless handover for video applications. The proposal considers frameworks used for traffic engineering (MPLS/RSVP-TE) and mobility management at the network layer (MIPv6), as well as, it adopts the new standard IEEE 802.21 to assist the integration of heterogeneous networks. In addition, it uses a vertical handover decision policy based on fuzzy system and its optimization by a genetic algorithm for scenarios that integrate the WiMAX and Wi-Fi access technologies. The proposal is evaluated via simulation using the ns-2 (Network Simulator) and the performance results are shown through the QoS (throughput) and QoE (PSNR, SSIM and MSU VQM) metrics that demonstrated the effectiveness of the architecture to support seamless handover.

Keywords: Seamless handover, IEEE 802.21, WiMAX, Wi-Fi, QoS, QoE, genetic algorithm, fuzzy system