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metadata.dc.type: Artigo de Periódico
Issue Date: Dec-2012
metadata.dc.creator: CARDOSO, Diego Lisboa
SANTANA, Ádamo Lima de
SILVA, Marcelino Silva da
FRANCÊS, Carlos Renato Lisboa
COSTA, João Crisóstomo Weyl Albuquerque
CARVALHO, Solon Venâncio de
VIJAYKUMAR, Nandamudi Lankalapalli
Title: Green-Markov models - new optimization strategies: a case study for user allocation in co-channel macro/femto networks
Citation: CARDOSO, Diego L., et al. Green-Markov models - new optimization strategies: a case study for user allocation in co-channel macro/femto networks. Journal of Microwaves, Optoelectronics and Electromagnetic Applications, São Caetano do Sul, v. 11, n. 2, p. 269-284, dez. 2012. Disponível em: <>. Acesso em: 12 ago. 2013. <>.
Abstract: The femtocell concept aims to combine fixed-line broadband access with mobile telephony using the deployment of low-cost, low-power third and fourth generation base stations in the subscribers' homes. While the self-configuration of femtocells is a plus, it can limit the quality of service (QoS) for the users and reduce the efficiency of the network, based on outdated allocation parameters such as signal power level. To this end, this paper presents a proposal for optimized allocation of users on a co-channel macro-femto network, that enable self-configuration and public access, aiming to maximize the quality of service of applications and using more efficiently the available energy, seeking the concept of Green networking. Thus, when the user needs to connect to make a voice or a data call, the mobile phone has to decide which network to connect, using the information of number of connections, the QoS parameters (packet loss and throughput) and the signal power level of each network. For this purpose, the system is modeled as a Markov Decision Process, which is formulated to obtain an optimal policy that can be applied on the mobile phone. The policy created is flexible, allowing different analyzes, and adaptive to the specific characteristics defined by the telephone company. The results show that compared to traditional QoS approaches, the policy proposed here can improve energy efficiency by up to 10%.
Keywords: Femtocell
Rede verde
Processos de Markov
Alocação otimizada
Qualidade de serviço (Telecomunicações)
ISSN: 2179-1074
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - ITEC

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