Analysis of the cost and energy efficiency of future hybrid and heterogeneous optical networks

Filippos Balasis, Sugang Xu, Yoshiaki Tanaka

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)


    Orthogonal frequency division multiplexing (OFDM) promises to provide the necessary boost in the core networks' capacity along with the required flexibility in order to cope with the Internet's growing heterogeneous traffic. At the same time, wavelength division multiplexing (WDM) technology remains a cost-effective and reliable solution especially for long-haul transmission. Due to the higher implementation cost of optical OFDM transmission technology, it is expected that OFDM-based bandwidth variable transponders (BVT) will co-exist with conventional WDM ones. In this paper, we provide an integer linear programming (ILP) formulation that minimizes the cost and power consumption of such hybrid architecture and then a comparison is made with a pure OFDM-based elastic optical network (EON) and a mixed line rate (MLR) WDM optical network in order to evaluate their cost and energy efficiency. key words: hybrid optical network, elastic optical network, WDM, bandwidth variable transponder, ILP.

    Original languageEnglish
    Pages (from-to)1222-1232
    Number of pages11
    JournalIEICE Transactions on Communications
    Issue number5
    Publication statusPublished - 2018 May 1

    ASJC Scopus subject areas

    • Software
    • Computer Networks and Communications
    • Electrical and Electronic Engineering


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