Melhoria da conectividade de rede sem fio por meio de Comunicação Cooperativa (Improving Connectivity in Wireless Network Through Cooperative Communication)

Ulisses Rodrigues Afonseca (urafonseca@ifg.edu.br)1, Thiago Fernandes Neves (tfn.thiago@cic.unb.br)2, Felipe Moraes Modesto (felipe@cic.unb.br)2, Jacir Luiz Bordim (bordim@unb.br)2


1Instituto Federal de Goiás
2Universidade de Brasília

This paper appears in: Revista IEEE América Latina

Publication Date: June 2014
Volume: 12,   Issue: 4 
ISSN: 1548-0992


Abstract:
Cooperative communication (CC) is a technique that has been explored as an alternative to connect isolated network components in wireless ad hoc settings. However, existing solutions are centralized and have high computational cost, as they require complete topology information. This paper presents a distributed solution to improve network connectivity by exploring CC using localized information. Simulation results show that the proposed scheme is able to restore connectivity in more than 95% of the evaluated cases. Furthermore, transmission power needed to establish the CC is comparable to the cost of similar solutions that require global topological information.

Index Terms:
articulation, bridge, connectivity recovering, cooperative communication   


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