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    A new Linux based TCP congestion control mechanism for long distance high bandwidth sustainable smart cities

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    Publication date
    2018-02
    Author
    Mudassar, A.
    Asri, N.M.
    Usman, A.
    Amjad, K.
    Ghafir, Ibrahim
    Arioua, M.
    Keyword
    Congestion control mechanisms
    Convergence time
    Cloud networks
    Protocol fairness
    Smart cities
    TCP CUBIC
    TCP friendliness
    Long distance high bandwidth (LDHB) cloud
    Rights
    © 2018 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    People, systems, and things in the cities generate large amount of data which is considered to be the most scalable asset of any smart city. Linux users are rapidly increased in last few years, and many large multinational organizations are deploying long distance high bandwidth (LDHB) cloud networks for centralizing the data from various smart cities on a central location. TCP is responsible for reliable communication of data in these cloud networks. For reliability communication among various smart cities, a number of TCP congestion control mechanisms have been developed in the past. TCP Compound, TCP Fusion, and TCP CUBIC are the default TCP congestion control mechanisms for Microsoft Windows, Sun Solaris, and Linux operating systems respectively. The response function of TCP CUBIC is higher than the response function of Standard TCP, which is a trademark congestion control mechanism. As a result, TCP CUBIC does not behave friendly with Standard TCP in LDHB cloud networks. The Congestion Window (cwnd) reduction and growth of TCP CUBIC is very aggressive, which causes high packet loss rate and unfair share of available link bandwidth among competing flows from various smart cities. The aim of this research is to design a new TCP congestion control mechanism for Linux operating system to achieve maximum performance in LDHB cloud networks being used by smart cities. In this paper, congestion control module for slow start (CCM-SS) is designed by increasing the lower boundary limit of cwnd size in slow start phase of communication. Congestion control module for loss event (CCM-LE) is designed by increasing the cwnd reduction rate at each packet loss event and finally Advance Response Function for TCP CUBIC (ARFC) is proposed to design a new congestion control mechanism for Linux operating system. NS-2 is used to compare the performance of TCP CUBIC* with TCP CUBIC in short distance high bandwidth (SDHB) and long distance high bandwidth (LDHB) cloud networks. Results show that TCP CUBIC* has outperformed in LDHB networks, at least by a factor of 18% as compared to TCP CUBIC.
    URI
    http://hdl.handle.net/10454/17615
    Version
    No full-text in the repository
    Citation
    Mudassar A, Asri NM, Usman A et al (2018) A new Linux based TCP congestion control mechanism for long distance high bandwidth sustainable smart cities. Sustainable Cities and Society. 37: 164-177.
    Link to publisher’s version
    https://doi.org/10.1016/j.scs.2017.11.005
    Type
    Article
    Collections
    Engineering and Informatics Publications

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