Dynamic, data-driven spectrum management in cognitive small cell networks

Chang Shen Lee, Wei Chong Chen, Shuvra S. Bhattacharyya, Ta Sung Lee

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    3 Citations (Scopus)

    Abstract

    Recently, the deployment of small cells is considered as an effective solution to enhance the capacity in existing cellular networks. However, massive deployment of small cells also incurs severe interference and increased energy consumption, which degrades the energy efficiency of the system. In this paper, we analyze the energy efficiency in cognitive small cell network, and propose a traffic-aware distributed sensing and access scheme for cognitive small cells base stations (SBSs). The proposed scheme adopts the concept of dynamic data driven applications systems (DDDAS). In the DDDAS paradigm, a model of the underlying design space is managed dynamically, updated periodically based on measurements of data, and used to drive measurement functions and adaptation of system configurations. Through careful integration of DDDAS-based design principles, SBSs have the ability to configure their sensing and access parameters according to the traffic patterns that are actually encountered. Simulation results show that our proposed DDDAS-based scheme can achieve significantly higher energy efficiency compared to conventional spectrum sharing schemes in cognitive small cell networks.

    Original languageEnglish
    Title of host publication2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781479952557
    DOIs
    Publication statusPublished - 23 Jan 2014
    Publication typeA4 Article in a conference publication
    Event8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Gold Coast, Australia
    Duration: 15 Dec 201417 Dec 2014

    Conference

    Conference8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014
    Country/TerritoryAustralia
    CityGold Coast
    Period15/12/1417/12/14

    Keywords

    • Cognitive radio
    • DDDAS
    • dynamic spectrum access
    • energy efficiency
    • small cell
    • utility

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Signal Processing
    • Electrical and Electronic Engineering

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