Overlay routing with acceptable waiting time for unstably fluctuated network environments

Authors:
Yuya Yamada;Hitomi Tamura;Masato Uchida;Masato Tsuru;Yuji Oie
Affiliations:
Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology;Kyushu Research Center, National Institute of Information and Communications Technology and Network Design Research Center, Kyushu Institute of Technology;Kyushu Research Center, National Institute of Information and Communications Technology and Network Design Research Center, Kyushu Institute of Technology;Kyushu Research Center, National Institute of Information and Communications Technology and Network Design Research Center, Kyushu Institute of Technology;Network Design Research Center, Kyushu Institute of Technology
Venue:
ICOIN'09 Proceedings of the 23rd international conference on Information Networking
Year:
2009

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Abstract

Overlay routing can be used as a Traffic Engineering (TE) technique to realize efficient resource utilization and load balancing in the current wired Internet. Conventional overlay routing uses a detour path immediately upon quality degradation of the default path. However, with the widespread use of mobile and wireless communication technologies, conventional overlay routing faces several significant challenges such as intermittent connectivity and high packet loss rate resulting from the instability of network environments. Therefore, this paper proposes a novel TE technique based on overlay routing that has an Acceptable Waiting Time (AWT), which allows the overlay node to await the quality recovery of the default path, instead of employing the detour path immediately upon the quality degradation of the default path. Simulation results show that the proposed scheme can deal with instability of path condition.